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Front cover pg X001; DOI: 10.1039/P199100FX001 |
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Contents pages pg P001; DOI: 10.1039/P199100FP001 |
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Rhodium carbenoid mediated cyclisations. Part 7. Synthesis and coupling reactions of 2-substituted 3-oxooxepanes Martin J. Davies Christopher J. Moody and Roger J. Taylor pg 1; DOI: 10.1039/P19910000001 |
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Back cover pg X003; DOI: 10.1039/P199100BX003 |
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The rhodium carbenoid route to cyclic ethers: synthesis of the cis-2,7-disubstituted oxepane skeleton of isolaurepinnacin Martin J. Davies and Christopher J. Moody pg 9; DOI: 10.1039/P19910000009 |
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1,4-Di-o-toly-2,3-naphthoquinone David W. Jones and Alan Pomfret pg 13; DOI: 10.1039/P19910000013 |
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Stability of alkoxy-substituted inden-2-ones and 6,7-dimethoxy-1,4-diphenyl-2,3-naphthoquinone David P. Bradshaw David W. Jones and Firstborn Matthew Nongrum pg 19; DOI: 10.1039/P19910000019 |
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An efficient preparation of optically active allylic alcohols,2-furyl alcohols and 2-thienyl alcohols by catalytic asymmetric alkylation Masahiko Hayashi Toshiyuki Kaneko and Nobuki Oguni pg 25; DOI: 10.1039/P19910000025 |
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Olivanic acid analogues. Part 8. Halogenation and sulphenylation reactions leading selectively to cis-carbapenem precursors; stereospecific synthesis of ()-6-epithienamycin John H. Bateson Alison M. Robins and Robert Southgate pg 29; DOI: 10.1039/P19910000029 |
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Steroids. Part 43. Thermal decomposition of steroidal azidoformates Gyula Schneider László Hackler János Szanyi and Pál Sohár pg 37; DOI: 10.1039/P19910000037 |
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Synthesis of penicillamine- and cysteine-containing nucleoamino acids as potential antivirals and aminopeptidase B inhibitors Rosario Herranz Julia Castro-Pichel M. Teresa García-López Concepción Pérez Jan Balzarini and Erik De Clercq pg 43; DOI: 10.1039/P19910000043 |
Synthetic studies for novel structure of  -nitrogenously functionalized -fluorocarboxylic acids. Part 1. The first synthesis and reactions of N-protected -fluoroglycinesYoshio Takeuchi Manabu Nabetani Kumiko Takagi Toru Hagi and Toru Koizumi pg 49; DOI: 10.1039/P19910000049 |
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Multiple base-pairing mode of 9-ethyl-8-hydroxyguanine in three different crystal phases Mitsunobu Doi Yasuko In Masami Kikuchi Toshimasa Ishida and Masatoshi Inoue pg 55; DOI: 10.1039/P19910000055 |
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Structural modifications of the potassium channel activator cromakalim: the C-3 position Derek R. Buckle Catherine S. V. Houge-Frydrych Ivan L. Pinto David G. Smith and John M. Tedder pg 63; DOI: 10.1039/P19910000063 |
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Thermal reactivity of tricyclic 4,5-diacyltriazolines resulting from addition of aryl azides to 1,4-naphthoquinone and 2-methyl-1,4-naphthoquinone Luisa Benati P. Carlo Montevecchi and Piero Spagnolo pg 71; DOI: 10.1039/P19910000071 |
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Lysine 2,3-aminomutase: role of S-adenosyl-L-methionine in the mechanism. Demonstration of tritium transfer from (2RS,3RS)-[3-3H]lysine to S-adenosyl-L-methionine James L. Kilgore and D. John Aberhart pg 79; DOI: 10.1039/P19910000079 |
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A short, convergent synthesis of aristolindiquinone Marc E. Botha Robin G. F. Giles and Selwyn C. Yorke pg 85; DOI: 10.1039/P19910000085 |
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An investigation into the unusual formation of an isocoumarin by acylation of 2,3,6-trimethoxytoluene with (E)-2-methylbut-2-enoic acid and trifluoroacetic anhydride Marc E. Botha Robin G. F. Giles Cornelis M. Moorhoff Lutz M. Engelhardt Allan H. White Anwar Jardine and Selwyn C. Yorke pg 89; DOI: 10.1039/P19910000089 |
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Diastereoselective formation of tricarbonyliron(0) complexes of 1-aza-1,3-dienes bearing chiral substituents K. Gail Morris and Susan E. Thomas pg 97; DOI: 10.1039/P19910000097 |
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Radical chain reduction of alkyl halides, dialkyl sulphides and O-alkyl S-methyl dithiocarbonates to alkanes by trialkylsilanes Stephen J. Cole J. Nicholas Kirwan Brian P. Roberts and Colin R. Willis pg 103; DOI: 10.1039/P19910000103 |
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Reactions of 2H,5H-imidazo[1,5-b]isoquinoline-1,3-diones with bromine Ioannis Niopas and Gordon A. Smail pg 113; DOI: 10.1039/P19910000113 |
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Reactions of 1,3-dioxoimidazo[1,5-b]isoquinolinium bromides with nucleophiles Ioannis Niopas and Gordon A. Smail pg 119; DOI: 10.1039/P19910000119 |
Preparation of antiandrogenic 17-hydroxy-3,6-cyclo-4-nor-3,5-seco-6 -androstan-3-one by deoxygenation of the corresponding 5-hydroxy derivativesJi  í Polman and Alexander Kasal pg 127; DOI: 10.1039/P19910000127 |
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Methyl (3R)-3-hydroxyhex-5-enoate as a precursor to chiral mevinic acid analogues Frank Bennett David W. Knight and Garry Fenton pg 133; DOI: 10.1039/P19910000133 |
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Photochemical desulphurization of indoline-2-thiones Takehiko Nishio Norikazu Okuda and Choji Kashima pg 141; DOI: 10.1039/P19910000141 |
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Synthetic and stereochemical studies directed towards anatoxin-a Nicholas J. S. Huby Richard G. Kinsman David Lathbury Peter G. Vernon and Timothy Gallagher pg 145; DOI: 10.1039/P19910000145 |
Highly conjugated  -electron donors for organic metals: synthesis and redox chemistry of new 1,3-dithiole and 1,3-selenathiole derivativesAdrian J. Moore and Martin R. Bryce pg 157; DOI: 10.1039/P19910000157 |
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2-Benzopyran-3-ones stabilised by alkoxy substituents David P. Bradshaw David W. Jones and John Tideswell pg 169; DOI: 10.1039/P19910000169 |
The total synthesis of ()-indolizidines 235B and 235B Ian Collins Martin E. Fox Andrew B. Holmes Simon F. Williams Raymond Baker Ian J. Forbes and Mervyn Thompson pg 175; DOI: 10.1039/P19910000175 |
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Dithiazoles and related compounds. Part 3. Preparation of 5H-1,4,2-dithiazoles via 1,3-dipolar cycloadditions between nitrile sulphides and thiocarbonyl compounds, and some conversions into 3,5-diaryl-1,4,2-dithiazolium salts Kwok-Fai Wai and Michael P. Sammes pg 183; DOI: 10.1039/P19910000183 |
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Cerebrosides of frog brain. Structure of the ceramide part of the cerebrosides Kiyotaka Munesada Masatoshi Yuasa and Takayuki Suga pg 189; DOI: 10.1039/P19910000189 |
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C-nucleoside studies. Part 21. Synthesis of some hydroxyalkylated pyrroloand thieno-[3,2-d]pyrimidines related to known antiviral acyclonucleosides J. Grant Buchanan David A. Craven Richard H. Wightman and Michael R. Harnden pg 195; DOI: 10.1039/P19910000195 |
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Reaction of 3-halogeno-2H-1-benzopyran-2-ones with organometallic compounds. Synthesis of 4-Alkyl-2H-1-benzopyran-2-ones. X-Ray molecular structure of 3-bromo-3,4-dihydro-4-isopropylcoumarin Angel Alberola Blanca Calvo Alfonso Gonzalez Ortega Martina Vicente Santiago G. Granda and Juan F. Van der Maelen pg 203; DOI: 10.1039/P19910000203 |
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Identification of an intermediate in autoxidation of carota-1,4-die-14-al into rugosal A Yasuyuki Hashidoko Satoshi Tahara and Junya Mizutani pg 211; DOI: 10.1039/P19910000211 |
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The synthesis of -([11C]methyl)phenylalanine and -([11C]methyl)tyrosine from 11C-labelled malonic esters Antony D. Gee and Bengt Långström pg 215; DOI: 10.1039/P19910000215 |
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A one-pot synthesis of coumarins from dipotassium O-methoxybenzylidenemalonates Osmo E. O. Hormi Carita Peltonen and Riitta Bergström (née Moisio) pg 219; DOI: 10.1039/P19910000219 |
Extension of the aza-di--methane reaction to stable derivatives. Photochemical cyclization of , -unsaturated oxime acetatesDiego Armesto William M. Horspool Fernando Langa and Ana Ramos pg 223; DOI: 10.1039/P19910000223 |
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Reaction of thiolo and selenolo esters of phosphorus acids with halogens. Part 3. Interaction of O, O,S-trialkyl phosphorothioates and O,S-dialkyl t-butylphosphonothioates with sulphuryl chloride and halogens Bo  ena Krawiecka and Elbieta Wojna-Tadeusiak pg 229; DOI: 10.1039/P19910000229 |
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Perkin communications. Intramolecular (3 + 2) cycloadditions Michael P. Collins John Mann Nigel Capps and Harry Finch pg 239; DOI: 10.1039/P19910000239 |
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A new sequence for the synthesis of 3-(poly)enoyltetramic acids Raymond C. F. Jones and Mark Tankard pg 240; DOI: 10.1039/P19910000240 |
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Instructions for authors (1991) pg v; DOI: 10.1039/P1991000000v |
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IUPAC publications on nomenclature and symbolism pg xx; DOI: 10.1039/P199100000xx |
Issue 2
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Front cover pg X005; DOI: 10.1039/P199100FX005 |
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Contents pages pg P005; DOI: 10.1039/P199100FP005 |
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Back cover pg X007; DOI: 10.1039/P199100BX007 |
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Back matter pg P011; DOI: 10.1039/P199100BP011 |
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Tetracyclic triterpenes. Part 13. A new synthesis of 4-demethyl-24,25-dihydrolanosterol Zdzislaw Paryzek and Jacek Martynow pg 243; DOI: 10.1039/P19910000243 |
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2-Diazo-1,3-dimesityl-2H-indene and 1,3-dimesitylisoindenylidene David W. Jones and Alan Pomfret pg 249; DOI: 10.1039/P19910000249 |
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Pseudomonic acid biosynthesis. The putative role of 3-hydroxy-3-methylglutarate Peter G. Mantle and Katharine M. Macgeorge pg 255; DOI: 10.1039/P19910000255 |
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Quinoline alkaloids. Part 27. Synthesis of the Ptelea alkaloids pteleflorine, neohydroxylunine, O-methylhydroxyluninium salt and hydroxylunine Charles F. Neville (the late) Michael F. Grundon Venkat N. Ramachandran and Johannes Reisch pg 259; DOI: 10.1039/P19910000259 |
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An isolable but highly reactive o-quinodimethane; 1,1a,2,3,4,4a-hexahydro-9,10-diphenyl-1,4-methanoanthracene David W. Jones and Alan Pomfret pg 263; DOI: 10.1039/P19910000263 |
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Reaction of benzeneselenenyl halides with estrogens Hasrat Ali and Johan E. van Lier pg 269; DOI: 10.1039/P19910000269 |
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The influence of A steric interactions on the conformational features of benzo[g]pyridazino[1,2-b]phthalazine-6,13-dione derivatives M. Carmen Cano Fernando Gómez-Contreras and Manuel Lora-Tamayo pg 273; DOI: 10.1039/P19910000273 |
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Synthesis of ara-3,7-dideazaadenosine and related pyrrolo[3,2-c]pyridine D-arabinofuranosides Werner Bourgeois and Frank Seela pg 279; DOI: 10.1039/P19910000279 |
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Novel fused bicyclic sulphur compounds Paul A. Delaney Robert A. W. Johnstone Paul A. Leonard and Peter Regan pg 285; DOI: 10.1039/P19910000285 |
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Stages in the biosynthesis of the epoxy lactol side chain of Nic-1, insect antifeedant steroid of Nicandra physaloides Warren Andrews-Smith Harjit K. Gill Roland W. Smith and Donald A. Whiting pg 291; DOI: 10.1039/P19910000291 |
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A simple and unambiguous synthesis of ,- and ,-dihalogeno ketones José Barluenga Luján Llavona José M. Concellón and Miguel Yus pg 297; DOI: 10.1039/P19910000297 |
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Organic heterocyclothiazenes. Part 14. Aminotrithiadiazepines and trithiadiazepyne M. John Plater and Charles W. Rees pg 301; DOI: 10.1039/P19910000301 |
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Organic heterocyclothiazenes. Part 15. Pyrazolotrithiadiazepines and their rearrangement to 1,2,3-dithiazoles M. John Plater and Charles W. Rees pg 311; DOI: 10.1039/P19910000311 |
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Organic heterocyclothiazenes. Part 16. Reactions of trithiadiazepyne with cyclopentadienones. Some stable norbornadienones M. John Plater and Charles W. Rees pg 317; DOI: 10.1039/P19910000317 |
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Generation and reactions of N-(-lithioalkyl)tetrazoles Christopher J. Moody Charles W. Rees and Richard G. Young pg 323; DOI: 10.1039/P19910000323 |
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Synthesis of 3-phenylpyrazoles from 2-alkenyl-5-phenytetrazoles Christopher J. Moody Charles W. Rees and Richard G. Young pg 329; DOI: 10.1039/P19910000329 |
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Synthesis and properties of 4H-imidazoles. Part 2. Christopher J. Moody Charles W. Rees and Richard G. Young pg 335; DOI: 10.1039/P19910000335 |
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Synthesis and reactions of -enamino phosphonium salts. Preparation of 2-vinyl-1-aza-1,3-dienes and penta-l,4-dien-3-ones José Barluenga Isabel Merino and Francisco Palacios pg 341; DOI: 10.1039/P19910000341 |
Photochemical  -hydrogen abstraction from acyclic and semicyclic monothioimidesMasami Sakamoto Masakazu Tohnishi Tsutomu Fujita and Shoji Watanabe pg 347; DOI: 10.1039/P19910000347 |
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Regiochemistry of radical cyclisations (6-exo/7-endo and 7-exo/8-endo) of N-(o-alkenylphenyl)-2,2-dichloroacetamides Tatsunori Sato Satoshi Ishida Hiroyuki Ishibashi and Masazumi Ikeda pg 353; DOI: 10.1039/P19910000353 |
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Regio- and enantio-selectivity of the cytosolic epoxide hydrolase-catalysed hydrolysis of racemic monosubstituted alkyloxiranes Giuseppe Bellucci Cinzia Chiappe Franco Marioni and Massimiliano Benetti pg 361; DOI: 10.1039/P19910000361 |
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Biosynthesis of natural products with a P–C bond. Part 6. Preparation of deuterium- and carbon-13-labelled L-alanyl- and L-alanyl-L-alanyl-(2-aminoethyl)phosphonic acids and their use in biosynthetic studies of fosfomycin in streptomyces fradiae Friedrich Hammerschmidt Hanspeter Kählig and Norbert Müller pg 365; DOI: 10.1039/P19910000365 |
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New synthesis of catalpalactone Mahendra D. Chordia and Nurani S. Narasimhan pg 371; DOI: 10.1039/P19910000371 |
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Gas-phase rearrangement and cyclisation reactions of 2-benzylphenylaminyl radicals and related 2-hetero-analogues J. I. G. Cadogan Clare L. Hickson H. Susan Hutchison and Hamish McNab pg 377; DOI: 10.1039/P19910000377 |
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Gas-phase reactions of 2-benzyl- and 2-benzoyl-phenoxyl radicals, and of 2-phenoxybenzyl radicals: examples of new hydrogen-transfer processes J. I. G. Cadogan H. Susan Hutchison and Hamish McNab pg 385; DOI: 10.1039/P19910000385 |
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Photochemical oxa-di--methane rearrangement approach to [3.3.3]propellanes. Total synthesis of sesquiterpene hydrocarbon ()-modhephene Goverdhan Mehta and Duvvuri Subrahmanyam pg 395; DOI: 10.1039/P19910000395 |
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Thietane-fused -lactams via photochemical cycloaddition reaction of N-(, -unsaturated carbonyl)thioamides Masami Sakamoto Tohru Yanase Tsutomu Fujita Shoji Watanabe Hiromu Aoyama and Yoshimori Omote pg 403; DOI: 10.1039/P19910000403 |
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The synthesis of 5- and 6-substituted quinuclidine-3-carboxylic esters: intermediates for novel muscarinic ligands Roger J. Snow Raymond Baker Richard H. Herbert Ian J. Hunt Kevin J. Merchant and John Saunders pg 409; DOI: 10.1039/P19910000409 |
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Synthesis and properties of a novel 1-pyrroline fatty ester derivative from methyl isoricinoleate Marcel S. F. Lie Ken Jie and M. S. K. Syed-Rahmatullah pg 421; DOI: 10.1039/P19910000421 |
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Structure of two new sesquiterpenoid insect antifeedants from Celastrus rosthornianus Yong Q. Tu pg 425; DOI: 10.1039/P19910000425 |
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Synthesis of -substituted allyl- and homoallyl-stannanes by selenoxide elimination Vincent J. Jephcote and Eric J. Thomas pg 429; DOI: 10.1039/P19910000429 |
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Studies on the liverwort sesquiterpene alcohol tamariscol. Synthesis and absolute configuration Motoo Tori Masakazu Sono Yukiko Nishigaki Katsuyuki Nakashima and Yoshinori Asakawa pg 435; DOI: 10.1039/P19910000435 |
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Synthesis and relative structure of conocephalenol, a sesquiterpene alcohol isolated from the european liverwort Conocephalum conicum Motoo Tori Masakazu Sono Katsuyuki Nakashima Yoko Nakaki and Yoshinori Asakawa pg 447; DOI: 10.1039/P19910000447 |
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Transformation of cyclic -phenylthio aldehydes by stereoselective aldol reactions and phenylthio migration into spirocyclic lactones and ethers, and E-allylic alcohols with 1,4-related chiral centres Varinder K. Aggarwal Iain Coldham Sara McIntyre and Stuart Warren pg 451; DOI: 10.1039/P19910000451 |
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Some photoproducts from the photochemical cycloaddition reactions between acrylonitrile and 1-methyl-, 2-methyl- and 2,6-dimethyl-naphthalenes John J. McCullough T. Brian McMurry and D. Neil Work pg 461; DOI: 10.1039/P19910000461 |
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Generation and reactions of 2-alkoxydiphenylcarbenes in fluid solution and rigid matrices Hideo Tomioka Keisaku Nakanishi and Yasuji Izawa pg 465; DOI: 10.1039/P19910000465 |
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Buttressing effect in carbene chemistry. Effect of 3-alkyl groups on the reactions of 2-alkoxydiphenylcarbenes Hideo Tomioka Kohji Kimoto Hiroshi Murata and Yasuji Izawa pg 471; DOI: 10.1039/P19910000471 |
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Novel borane–selenium complex: highly selective reduction of tertiary amides and nitriles to the corresponding amines with sodium borohydride–dialkylselenium dibromide Sadatoshi Akabori and Yoshinori Takanohashi pg 479; DOI: 10.1039/P19910000479 |
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Perkin communications. 5-Substituted bicyclo[3.2.0]hept-2-en-6-ones: synthesis and ring-opening reactions Holger Butenschön pg 483; DOI: 10.1039/P19910000483 |
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Electrophilic substitution of a 2-azabicyclo[2.2.1]hept-5-en-3-one as a potential route to 3-deoxycarbocyclic nucleosides Christopher F. Palmer Keith P. Parry and Stanley M. Roberts pg 484; DOI: 10.1039/P19910000484 |
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A novel synthesis of -perfluoroalkylated ,-unsaturated nitriles Yanchang Shen and Tielin Wang pg 487; DOI: 10.1039/P19910000487 |
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A regiospecific rearrangement of 4(5)-substituted 2-phenacylthio-1H-imidazoles to 4-substituted 2-mercapto-1-phenacyl-1H-imidazoles Jiban K. Chakrabarti and Colin W. Smith pg 488; DOI: 10.1039/P19910000488 |
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Enantioselective synthesis of the lactone moiety of the mevinic acids using D-xylose as a chiral precursor Roberto Ballini Enrico Marcantoni and Marino Petrini pg 490; DOI: 10.1039/P19910000490 |
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An improved procedure for regioselective acylation of carbohydrates: novel enzymatic acylation of -D-glucopyranose and methyl -D-glucopyranoside Vicente Gotor and Rosalino Pulido pg 491; DOI: 10.1039/P19910000491 |
Issue 3
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Front cover pg X009; DOI: 10.1039/P199100FX009 |
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Back cover pg X011; DOI: 10.1039/P199100BX011 |
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Contents pages pg P013; DOI: 10.1039/P199100FP013 |
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Marine sterols. Part 20. Polyhydroxy sterols of the soft corals of the Andaman and Nicobar coasts. Part 4. Andamansterol and nicobarsterol, novel sterols with 3,9,11,21-tetrahydroxylated, and 11,21-epoxy-9,11-secosteroid skeletons, from a Sclerophytum sp. of soft coral. X-Ray molecular structure of andamansterol Masaru Kobayashi Kimiko Kobayashi K. Venkata Ramana Ch. V. Lakshmana Rao D. Venkata Rao and Ch. Bheemasankara Rao pg 493; DOI: 10.1039/P19910000493 |
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Convenient synthesis of quinol esters by indium-mediated Reformatsky reaction of quinones Shuki Araki Nobuhito Katsumura Ken-ichi Kawasaki and Yasuo Butsugan pg 499; DOI: 10.1039/P19910000499 |
Preparation of tricarbonyl( 6-pyridine)chromium(0) complexesStephen G. Davies and Mark R. Shipton pg 501; DOI: 10.1039/P19910000501 |
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Phosphorylated sugars. Part 27. Synthesis and reactions, in acid medium, of 5-O-substituted methyl 3-deoxy--D-manno-oct-2-ulopyranosidonic acid 4-phosphates France-Isabelle Auzanneau Daniel Charon and Ladislas Szabó pg 509; DOI: 10.1039/P19910000509 |
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An alternative approach to mevinic acid analogues from methyl (3R)-(–)-3-hydroxyhex-5-enoate and an extension to unambiguous syntheses of (6R)-(+)-and (6S)-(–)-goniothalamin Frank Bennett David W. Knight and Garry Fenton pg 519; DOI: 10.1039/P19910000519 |
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Stereoselective alkylation of dianions derived from chiral half-esters of monosubstituted malonic acids: asymmetric synthesis of -alkyl -amino acids and key synthetic intermediates for Hunteria and Aspidosperma indole alkaloids Masataka Ihara Masanobu Takahashi Nobuaki Taniguchi Ken Yasui Hiroko Niitsuma and Keiichiro Fukumoto pg 525; DOI: 10.1039/P19910000525 |
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Isolation and structure of a new 1-decalone derivative, rapiculine, from Ramichloridium apiculatum Koohei Nozawa Shoichi Nakajima Shun-ichi Udagawa and Ken-ichi Kawai pg 537; DOI: 10.1039/P19910000537 |
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Photochemical reaction of 1-(o-methylphenyl)-2,2-dimethyl 1,3-diketones Michikazu Yoshioka Kaori Nishizawa Masayuki Arai and Tadashi Hasegawa pg 541; DOI: 10.1039/P19910000541 |
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Synthesis of chiral alcohol and ester pheromones through enzyme-catalysed hydrolysis using Pseudomonas fluorescens lipase: preparation of (2R,6S,10S)-6,10–14-Trimethylpentadecan-2-ol and the propionate of (2R,8R)-8-methyldecan-2-ol Yoshinobu Naoshima Yoshihito Munakata Satoshi Yoshida and Akio Funai pg 549; DOI: 10.1039/P19910000549 |
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Studies on quinones. Part 21. Regioselective synthesis of tetracyclic quinones related to rabelomycin Jaime A. Valderrama Ramiro Araya-Maturana M. Florencia González Ricardo Tapia Francisco Fariña and M. Carmen Paredes pg 555; DOI: 10.1039/P19910000555 |
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Amide acetal Claisen rearrangement in the synthesis of mesembrane alkaloids Sieglinde Bauermeister Izebrandt D. Gouws Heinrich F. Strauss and Elise M. M. Venter pg 561; DOI: 10.1039/P19910000561 |
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An isotopic study (2H and 18O) of the enzymic conversion of linoleic acid into colneleic acid with carbon chain fracture: the origin of shorter chain aldehydes Leslie Crombie David O. Morgan and Elisabeth H. Smith pg 567; DOI: 10.1039/P19910000567 |
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The enzymic conversion of 13-hydroperoxylinoleic acid into 13-hydroxy-12-oxooctadec-9(Z)-enoic acid and 9-hydroxy-12-oxooctadec-10(E)-enoic acid: isotopic evidence for an allene epoxide intermediate Leslie Crombie and David O. Morgan pg 577; DOI: 10.1039/P19910000577 |
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Synthesis of [14,14-2H2]-linolenic acid and its use to confirm the pathway to 12-oxophytodienoic acid (12-oxoPDA) in plants: a conspectus of the epoxycarbonium ion derived family of metabolites from linoleic and linolenic acid hydroperoxides Leslie Crombie and David O. Morgan pg 581; DOI: 10.1039/P19910000581 |
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Synthesis of acyclowyosine and acyclo-3-methylguanosine, as probes for some chemical and biological properties resulting from the N-3 substitution of guanosine and its analogues Bozenna Golankiewicz Tomasz Ostrowski Jerzy Boryski and Erik De Clercq pg 589; DOI: 10.1039/P19910000589 |
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The biosynthesis of xanthocillin-X monomethyl ether in dichotomomyces cejpii. Experiments on the origin of the isocyanide carbon atoms Karl M. Cable Richard B. Herbert Andrew R. Knaggs and Jonathan Mann pg 595; DOI: 10.1039/P19910000595 |
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A biocatalytic approach to the enantioselective synthesis of (R)- and (S)-malic acid Enzo Santaniello Patrizia Ferraboschi Paride Grisenti Fabrizio Aragozzini and Elisabetta Maconi pg 601; DOI: 10.1039/P19910000601 |
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Ring transformations of 5-chloro-1,2,3-thiadiazole-4-carbaldehyde with amines, hydrazines and hydroxylamine Gerrit L'Abbé Els Vanderstede Wim Dehaen Pieter Delbeke and Suzanne Toppet pg 607; DOI: 10.1039/P19910000607 |
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Nitrone cycloaddition: an approach to the cyclophane alkaloid ()-lythranidine (The late) William Carruthers Peter Coggins and John B. Weston pg 611; DOI: 10.1039/P19910000611 |
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A new oxindole synthesis Ian Fleming Roger C. Moses Moana Tercel and Joseph Ziv pg 617; DOI: 10.1039/P19910000617 |
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Novel perfluoroalkylation of alkenes with perfluoroalkanesulphonyl chlorides catalysed by a ruthenium(II) complex Nobumasa Kamigata Takamasa Fukushima Yoshie Terakawa Masato Yoshida and Hideo Sawada pg 627; DOI: 10.1039/P19910000627 |
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Synthesis of 1,2-dimethylpyrene, 1,3-dimethylpyrene and 1,2,3-trimethylpyrene Mark A. Hempenius Johan Lugtenburg and Jan Cornelisse pg 635; DOI: 10.1039/P19910000635 |
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Smooth generation of 3H-2-benzopyran-3-ones and their Diels–Alder reactions with olefinic dienophiles Peter I. Van Broeck Dirk J. Vanderzande Eric G. Kiekens and Georges J. Hoornaert pg 639; DOI: 10.1039/P19910000639 |
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Metal-assisted reactions. Part 21. Epoxidation of alkenes catalysed by manganese-porphyrins: the effects of various oxidatively-stable ligands and bases Antonio M. d'A. Rocha Gonsalves Robert A. W. Johnstone Mariette M. Pereira and Jacqueline Shaw pg 645; DOI: 10.1039/P19910000645 |
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Perkin communications. Stereochemistry of substituted 1-alkoxybicyclo[2.2.2]octenes; Diels–Alder synthesis versus Tandem-Michael strategy John H. Bateson Carol F. Smith and J. Bruce Wilkinson pg 651; DOI: 10.1039/P19910000651 |
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Chemoenzymatic preparation of atrolactic and Mosher's acid using Aspergillus oryzae protease Clemens Feichter Kurt Faber and Herfried Griengl pg 653; DOI: 10.1039/P19910000653 |
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Organized photocyclodimerization of laurylammonium indene-2-carboxylate aggregate Katsuhiko Takagi Eiji Nambara Hisanao Usami Mariko Itoh and Yasuhiko Sawaki pg 655; DOI: 10.1039/P19910000655 |
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Synthesis of either enantiomer of cis-3-aminocyclopentanecarboxylic acid from both enantiomers of racemic 2-azabicyclo[2.2.1]hept-5-en-3-one Chris Evans Ray McCague Stanley M. Roberts and Alan G. Sutherland pg 656; DOI: 10.1039/P19910000656 |
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Stereospecific total synthesis of ()-albene via a prochiral precursor Adusumilli Srikrishna and Sankuratri Nagaraju pg 657; DOI: 10.1039/P19910000657 |
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Application of electrophile-mediated cyclisations to the synthesis of the hexahydroazepine ring system Robert Shaw David Lathbury Martin Anderson and Timothy Gallagher pg 659; DOI: 10.1039/P19910000659 |
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Stereoselective synthesis of a synthon for the natural electron transfer inhibitors myxalamide D and piericidin A Catherine M. Cox and Donald A. Whiting pg 660; DOI: 10.1039/P19910000660 |
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Synthesis, X-ray crystal structure, equilibration studies and anion chemistry of trans-1,3-dithiane 1,3-dioxide Varinder K. Aggarwal Ian W. Davies Richard J. Franklin John Maddock Mary F. Mahon and Kieran C. Molloy pg 662; DOI: 10.1039/P19910000662 |
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A new one-pot synthesis of fluorinated bromoallenes Yanchang Shen and Yuejun Xiang pg 665; DOI: 10.1039/P19910000665 |
Issue 4
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Front cover pg X013; DOI: 10.1039/P199100FX013 |
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Back cover pg X015; DOI: 10.1039/P199100BX015 |
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Contents pages pg P017; DOI: 10.1039/P199100FP017 |
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Total synthesis of the anthelmintic macrolide avermectin B1a Steven V. Ley Alan Armstrong David Díez-Martín Mark J. Ford Peter Grice Julian G. Knight Hartmuth C. Kolb Andrew Madin Craig A. Marby Subhabrata Mukherjee Antony N. Shaw Alexandra M. Z. Slawin Sadie Vile Andrew D. White David J. Williams and Martin Woods pg 667; DOI: 10.1039/P19910000667 |
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Synthetic approach to novel crinipellin diterpenes. Construction of the functionalised C20-tetraquinane framework Goverdhan Mehta K. Srinivas Rao and M. Sreenivasa Reddy pg 693; DOI: 10.1039/P19910000693 |
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3-Hydroxypyrroles and 1H-pyrrol-3(2H)-ones. Part 9. Diazo-coupling reactions of 1-substituted-1H-pyrrol-3(2H)-ones Alexander J. Blake Hamish McNab and Lilian C. Monahan pg 701; DOI: 10.1039/P19910000701 |
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An approach to chiral trisubstituted pyrrolidines by enolate Claisen rearrangement of azalactones derived from -amino acids Jeremy Cooper David W. Knight and Peter T. Gallagher pg 705; DOI: 10.1039/P19910000705 |
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The stereochemistry of the silyl-cupration of allenes Ian Fleming Yannick Landais and Paul R. Raithby pg 715; DOI: 10.1039/P19910000715 |
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13C chemical-shift assignments in cyclooctyl derivatives from the spectra of deuterioisotopomers. Deuterium isotope effects on chemical shifts and conformational equilibria Kerry G. Penman William Kitching and Adam P. Wells pg 721; DOI: 10.1039/P19910000721 |
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Organocuprate-mediated alkylation of sugar epoxides. New stereospecific route to 3-C-alkyl-3-deoxy--D-glucose Saïd Achab and Bhupesh C. Das pg 727; DOI: 10.1039/P19910000727 |
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Secondary mould metabolites. Part 31. Isolation and structure elucidation of illudins A and B, and illudalenol, new sesquiterpenoids from Clitocybe illudens Alberto Arnone Rosanna Cardillo Gianluca Nasini and Orso Vajna de Pava pg 733; DOI: 10.1039/P19910000733 |
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Synthetic modifications of withanolides with an -orientated side-chain Erwin Glotter Sandeep Kumar Mahendra Sahai (the late) Alex Goldman Isaac Kirson and Marioara Mendelovici pg 739; DOI: 10.1039/P19910000739 |
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Attempted kinetic resolution of 1,2-diols by camphorquinone: generation of (R)-(chloromethyl)oxirane Martin K. Ellis Bernard T. Golding Antony B. Maude and William P. Watson pg 747; DOI: 10.1039/P19910000747 |
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Tricarbonyl(pyridine)chromium complexes: conversion into tricarbonyl(dihydropyridine)chromium complexes via regio- and stereo-selective nucleophilic addition reactions Stephen G. Davies and Mark R. Shipton pg 757; DOI: 10.1039/P19910000757 |
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Ethano- and etheno-bridged 2-pyridyl isoxazoles and thiazoles, and their reduced variants M. M. Campbell N. D. P. Cosford D. R. Rae and M. Sainsbury pg 765; DOI: 10.1039/P19910000765 |
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Conversion of guanosine into isoguanosine and derivatives K. J. Divakar Mina Mottahedeh Colin B. Reese Yogesh S. Sanghvi and Karl A. D. Swift pg 771; DOI: 10.1039/P19910000771 |
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[2 + 2] Cycloadditions of lithium alkynamides produced by fragmentation of 5-lithio-1-phenyl-1,2,3-triazoles Sagorika Ghose and Thomas L. Gilchrist pg 775; DOI: 10.1039/P19910000775 |
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A new approach to aromatic substitution—para-specific alkylation of acetophenone by alkyl radicals in strongly acidic media Laily Bin Din Otto Meth–Cohn and Nigel D. A. Walshe pg 781; DOI: 10.1039/P19910000781 |
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Preparation of some novel prostanoids based on a tetrahydropyran ring system Michael J. Kelly and Stanley M. Roberts pg 787; DOI: 10.1039/P19910000787 |
Preparation and oxidative doping of , -dithienyl polyenesCharles W. Spangler Pei-Kang Liu Alexa A. Dembek and Kathleen O. Havelka pg 799; DOI: 10.1039/P19910000799 |
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Chemistry of bacterial endotoxins. Part 6. Synthesis of allyl 5-O-(-D-mannopyranosyl)-(3-deoxy--D-manno-oct-2-ulopyranosid) onic acid and of allyl 5-O-(-D-mannopyranosyl)-(3-deoxy--D-manno-oct-2-ulopyranosid)onic acid 4-phosphate and their copolymers with acrylamide France-Isabelle Auzanneau Daniel Charon László Szilágyi and Ladislas Szabó pg 803; DOI: 10.1039/P19910000803 |
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Photochemistry of cyclic enones. Part 8. 5-(But-3-enyl)-3-phenylcyclopent-2-enone and 5-(pent-4-enyl)-3-phenylcyclopent-2-enone T. Brian H. McMurry Annemarie Work and Brian McKenna pg 811; DOI: 10.1039/P19910000811 |
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Synthesis and electron-transfer efficiency of oligopeptide-bridged donor–acceptor molecules Hitoshi Tamiaki and Kazuhiro Maruyama pg 817; DOI: 10.1039/P19910000817 |
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Synthesis of 3,14-dihydroxy-5,14-pregnan-20-one C-3 derivatives: ozonolysis of digitoxin and digitoxigenin and their derivatives followed by zinc–acetic acid reduction to the C-21 methyl ketone John F. Templeton Yangzhi Ling Jichun Jin Mark A. Boehmer Talal H. Zeglam and Frank S. LaBella pg 823; DOI: 10.1039/P19910000823 |
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Highly effective asymmetric synthesis of 11-deoxydaunomycinone and analogues Yoshinori Naruta Yutaka Nishigaichi and Kazuhiro Maruyama pg 831; DOI: 10.1039/P19910000831 |
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Synthetic approaches to the naphthyl-isoquinoline alkaloids. Part 1. Dehydroancistrocladisine Mark A. Rizzacasa and Melvyn V. Sargent pg 841; DOI: 10.1039/P19910000841 |
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Synthetic approaches to the naphthyl-isoquinoline alkaloids. Part 2. The total synthesis of (–)-O-methylancistrocladine and (+)-O-methylhamatine and their enantiomers Mark A. Rizzacasa and Melvyn V. Sargent pg 845; DOI: 10.1039/P19910000845 |
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Electrophilic substitution of imidazo[2,1-b]thiazoles M. Anne O'Daly Christopher P. Hopkinson G. Denis Meakins and Amanda J. Raybould pg 855; DOI: 10.1039/P19910000855 |
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Chemistry of the annonaceae, Part 29. Structure of mezzettiaside-2, -4, -5, -6 and -7, new partially esterified 1-O-octyl tri- and tetra-rhamnosyl derivatives from Mezzettia leptopoda Joseph T. Etse Alexander I. Gray Catherine Lavaud Georges Massiot Jean-Marc Nuzillard and Peter G. Waterman pg 861; DOI: 10.1039/P19910000861 |
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Alkenyl sulphides and ketene S,S-dithioacetals as olefin components in the Paterno-Bchi reaction: a regioselective synthesis of oxetanes N. Khan T. H. Morris E. H. Smith and R. Walsh pg 865; DOI: 10.1039/P19910000865 |
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Synthesis of functional perfluorinated resins, branched perfluorinated ethers and perfluoroalkanoyl fluorides Hsu-Nan Huang and Richard J. Lagow pg 871; DOI: 10.1039/P19910000871 |
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Nucleoside analogues. Part 12. The anomalous 19F NMR spectrum of B.3996, a molecular combination of 5-fluorouracil and N-(2-chloroethyl)-N-nitrosourea and synthesis of its N-nitroso isomer and related compounds Joan E. McCormick R. Stanley McElhinney T. Brian H. McMurry and Ross J. Maxwell pg 877; DOI: 10.1039/P19910000877 |
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-Lactamase-stable penicillins. Synthesis and structure–activity relationships of (Z)-alkyloxyimino penicillins; selection of BRL 44154 Pamela Brown Stephen H. Calvert Pauline C. A. Chapman Suzanne C. Cosham A. John Eglington Richard L. Elliot Michael A. Harris Jeremy D. Hinks John Lowther David J. Merrikin Michael J. Pearson Roger J. Ponsford and John V. Syms pg 881; DOI: 10.1039/P19910000881 |
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ent-12-Oxolabda-8,13(16)-dien-15-oic acid and ent-8,12-epidioxy-12-hydroxylabda-9(11),13-dien-15-oic acid -lactone: two new diterpenes from the aerial parts of Premna oligotricha. Solomon Habtemariam Alexander I. Gray Catherine Lavaud Georges Massiot Brian W. Skelton Peter G. Waterman and Allan H. White pg 893; DOI: 10.1039/P19910000893 |
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Phenylsulphonyloxiranes as functionalised acyl anion equivalents in organic synthesis Mark Ashwell William Clegg and Richard F. W. Jackson pg 897; DOI: 10.1039/P19910000897 |
Reaction of 1,3,4,6-tetrakis(alkylthio)-2 42-thieno[3,4-c]thiophenes with trifluoroacetic acid and with Vilsmeier reagent, and synthesis of new 242-thieno[3,4-c]thiophene derivativesAkira Tsubouchi Noboru Matsumura Hiroo Inoue and Kazunori Yanagi pg 909; DOI: 10.1039/P19910000909 |
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Photoinduced molecular transformations. Part 119. Photochemical nitrogen insertion into bicyclo[2.2.1]heptanones; the photochemistry of oximes of (+)-fenchone and (+)-camphor Hiroshi Suginome Kenji Furukawa and Kazuhiko Orito pg 917; DOI: 10.1039/P19910000917 |
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The synthesis of novel N-heterocycles from 2-azido-, 2-vinylazido- and 2-formyl-1,6-methano[10]annulene-2-carbaldehydes Hans Suschitzky Walter Kramer Richard Neidlein Peter Rosyk and Thomas Bohn pg 923; DOI: 10.1039/P19910000923 |
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Ylidenebutenolide mycotoxins. Concise syntheses of patulin and neopatulin from carbohydrate precursors Mandy Bennett G. Byron Gill Gerald Pattenden Anthony J. Shuker and Alan Stapleton pg 929; DOI: 10.1039/P19910000929 |
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C-nucleosides. Part 14. Synthesis of (6S)- and (6R)-6-methoxy-6-(-D-ribofuranosyl) pyran-3(2H,6H)-one. Potential chiral synthons, and 6-(-D-ribofuranosyl)pyridazine-3-carboxamide, a 2-azanicotinamide C-nucleoside, from 6-hydroxy-6-(2,3,5-tri-O-benzoyl--D-ribofuranosyl)pyran-3(2H,6H)-one Isamu Maeba Kazuya Osaka Noriaki Morishita Kengo Fujioka and Chihiro Ito pg 939; DOI: 10.1039/P19910000939 |
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Solid phase synthesis of potential antigenic peptides and new lipopeptides of hepatitis B virus Francesc Rabanal Isabel Haro Francesca Reig and José M. García-Antón pg 945; DOI: 10.1039/P19910000945 |
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Perkin communications. A new sequence for the C-alkylation of 4,5-dihydroimidazoles Raymond C. F. Jones Simon C. Hirst and Ian Turner pg 953; DOI: 10.1039/P19910000953 |
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Novel carbon–carbon bond formation by means of a rhodium acetate-catalysed reaction of ,-unsaturated diazoketone and its application to the synthesis of 4-epi-isovalerenenol Toshio Honda Hirohide Ishige Masayoshi Tsubuki Koichi Naito and Yukio Suzuki pg 954; DOI: 10.1039/P19910000954 |
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A short, high-yield, stereoselective synthesis of racemic exo- and endo-brevicomin Jong-Gab Jun and Dong Gyun Shin pg 956; DOI: 10.1039/P19910000956 |
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Synthesis and enantiomer recognition of crown ethers containing cyclohexane-1,2-diol derivatives as the chiral centre and enzymatic resolution of the chiral subunits Koichiro Naemura Hajime Miyabe and Yasuhiro Shingai pg 957; DOI: 10.1039/P19910000957 |
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Effects of substituents and chain length of thiobenzophenones on reactivity in a thermal intramolecular ene reaction Takao Saito Tsumoru Watanabe Satoshi Kitazawa Yuko Hayashi and Shinichi Motoki pg 959; DOI: 10.1039/P19910000959 |
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1,3-Oxazolidin-2-ones from 1H-aziridines by a novel stratagem which mimics the direct insertion of CO2 Malcolm R. Banks J. I. G. Cadogan Ian Gosney Philip K. G. Hodgson and Dian E. Thomson pg 961; DOI: 10.1039/P19910000961 |
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Biosynthesis of poriferasterol in Ochromonas malhamensis: 13C NMR assignment of the isopropyl methyl groups of 2-methylpentan-3-ol Diego Colombo Fiamma Ronchetti Giovanni Russo and Lucio Toma pg 962; DOI: 10.1039/P19910000962 |
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Total synthesis of A-ring aromatic steroids: a formal synthesis of estrone G. S. R. Subba Rao L. Uma Devi and Uma Javed Sheriff pg 964; DOI: 10.1039/P19910000964 |
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Corrigenda John H. Bateson Alison M. Robins Robert Southgate Ian Collins Martin E. Fox Andrew B. Holmes Simon F. Williams Raymond Baker Ian J. Forbes and Mervyn Thompson pg 967; DOI: 10.1039/P19910000967 |
Issue 5
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Front cover pg X017; DOI: 10.1039/P199100FX017 |
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Back cover pg X019; DOI: 10.1039/P199100BX019 |
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Contents pages pg P021; DOI: 10.1039/P199100FP021 |
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Aphidicolin synthetic studies: a stereocontrolled end game Carmelo J. Rizzo and Amos B. Smith III pg 969; DOI: 10.1039/P19910000969 |
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Expedient synthesis of natural (S)-sinefungin and of its C-6 epimer Derek H. R. Barton Stephane D. Géro Beatrice Quiclet-Sire and Mohammed Samadi pg 981; DOI: 10.1039/P19910000981 |
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The synthesis of phosphonium cascade molecules Kasthuri Rengan and Robert Engel pg 987; DOI: 10.1039/P19910000987 |
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Novel heterocyclization of hydrazinopyridazinones with dimethyl acetylenedicarboxylate with dehydrogenation and rearrangement Tetsuo Yamasaki Eiji Kawaminami Tomomi Yamada Tadashi Okawara and Mitsuru Furukawa pg 991; DOI: 10.1039/P19910000991 |
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Metabolic products of Fusarium acuminatum: acuminatopyrone and chlamydosporol John Frederick Grove and Peter B. Hitchcock pg 997; DOI: 10.1039/P19910000997 |
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Cycloaddition of acylnitroso compounds and nitrosobenzene with the pyrrolidine dienamine of Pummerer's ketone: X-ray crystal structure of a bridged 1,2-oxazine derivative Andrew A. Freer Md. Azizul Islam Gordon W. Kirby and Mohinder P. Mahajan pg 1001; DOI: 10.1039/P19910001001 |
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Tricarbonylpyridinechromium complexes: stereoselective alkylations and aldol-type reactions involving -carbanions derived from -tricarbonyl(2-alkylpyridine)chromium complexes Stephen G. Davies Alison J. Edwards and Mark R. Shipton pg 1009; DOI: 10.1039/P19910001009 |
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Stereoselective and regioselective functionalisation of protopine alkaloids: the synthesis of 1-substituted O-methyldihydrocryptopines Stephen G. Davies Craig L. Goodfellow Josephine M. Peach and Anne Waller pg 1019; DOI: 10.1039/P19910001019 |
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Chiral organometallic NADH mimics: preparation and X-ray crystal structure of racemic (RS)-[Fe(5-C5H5)(CO)(PPh3)(1-methyl-1,4-dihydronicotinoyl)] and homochiral (R)-(–)-[Fe(5-C5H5)(CO){PPh2(O-[(–)-menthyl])}(1-methyl-1,4-dihydronicotinoyl)] and asymmetric reduction of ethyl benzoylformate Stephen G. Davies Alison J. Edwards Renato T. Skerlj Kevin H. Sutton and Mark Whittaker pg 1027; DOI: 10.1039/P19910001027 |
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Synthesis of a dinucleoside monophosphate analogue containing 6-N-(2-aminoethyl)-2-deoxyadenosine. A novel approach to sequence specific cross-linking in synthetic oligonucleotides Richard Cosstick and Mark E. Douglas pg 1035; DOI: 10.1039/P19910001035 |
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Asymmetric syntheses of the naturally occurring -amino acids, -lysine, -leucine and -phenyl--alanine via nitrone cycloaddition David Keirs David Moffat Karl Overton and Richard Tomanek pg 1041; DOI: 10.1039/P19910001041 |
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Use of the electrophilic arylation reaction of aryllead triacetates in syntheses of ()-O-methyljoubertiamine and ()-mesembrine Christopher J. Parkinson and John T. Pinhey pg 1053; DOI: 10.1039/P19910001053 |
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Polymers with controlled molecular architecture: control of surface functionality in the synthesis of dendritic hyperbranched macromolecules using the convergent approach Karen L. Wooley Craig J. Hawker and Jean M. J. Fréchet pg 1059; DOI: 10.1039/P19910001059 |
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C-nucleoside studies. Part 22. cine-Substitution in 1,4-dinitropyrazoles: further model studies, an improved synthesis of formycin and pyrazofurin and the synthesis of some 3(5)-alkylsulphonyl-4-amino-5(3)--D-ribofuranosylpyrazoles J. Grant Buchanan Amir O. Jumaah Gordon Kerr Ratnakar R. Talekar and Richard H. Wightman pg 1077; DOI: 10.1039/P19910001077 |
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Neighbouring-group participation in the chromium trioxide oxidation of steroidal 4,5-epoxides. X-Ray molecular structure of 4,6,17-triacetoxy-3,5-dihydroxyandrostane Nazar Flaih James R. Hanson and Peter B. Hitchcock pg 1085; DOI: 10.1039/P19910001085 |
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A synthesis of 1-azabicyclo[2.2.1]heptane-3-carboxylic acid esters in enantiomerically pure form Ian F. Cottrell David Hands Derek J. Kennedy Kerensa J. Paul Stanley H. B. Wright and Karst Hoogsteen pg 1091; DOI: 10.1039/P19910001091 |
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Reactions of carbonyl compounds with benzyldibutyltelluronium bromide mediated by different strong bases Sao-Wei Li Zhang-Lin Zhou Yao-Zeng Huang and Li-Lan Shi pg 1099; DOI: 10.1039/P19910001099 |
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Monofunctionalized tridecachlorodiphenyl (2-pyridyl)methyl radicals. Synthesis and spectral analysis Luis Julia Juan Riera and Ramón Teixidó pg 1101; DOI: 10.1039/P19910001101 |
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Effect of 1,4-naphthoquinone annelation on the conformational behavnniour of carbonyl- and methano-bridged cyclodecadiene derivatives Shuntaro Mataka Seung Taeg Lee Yuriko Tamura Akihiko Tsuge and Masashi Tashiro pg 1107; DOI: 10.1039/P19910001107 |
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On the reaction of N-vinyliminophosphoranes. Part 16. A new synthesis of 5H-indeno[1,2-b]pyridines and 5H-indeno[1,2-b]pyridin-5-ones Makoto Nitta Manami Ohnuma and Yukio Iino pg 1115; DOI: 10.1039/P19910001115 |
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Anodic cyanation of tetramethylthiophene Kunihisa Yoshida Kazusada Takeda and Kikuwo Minagawa pg 1119; DOI: 10.1039/P19910001119 |
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The angular trifluoromethyl group. Part 4. Synthesis of the 9,9,9-trifluoro analogue of the Wieland–Miescher ketone Jean-Claude Blazejewski Frédéric Le Guyader and Claude Wakselman pg 1121; DOI: 10.1039/P19910001121 |
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The potential for using carbocyclic nucleosides for the treatment of AIDS. Part 1. Preparation of some analogues for azidothymidine (AZT) Rona M. Highcock Hans Hilpert Peter L. Myers Stanley M. Roberts and Richard Storer pg 1127; DOI: 10.1039/P19910001127 |
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Penaresidin A and B, two novel azetidine alkaloids with potent actomyosin ATPase-activating activity from the Okinawan marine sponge Penares sp. Jun'ichi Kobayashi Jie-Fei Cheng Masami Ishibashi Markus R. Wälchli Shosuke Yamamura and Yasushi Ohizumi pg 1135; DOI: 10.1039/P19910001135 |
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Steric factors in the azidolysis–thermolysis of some 5-tosyloxymethylbi-cyclo[2.2.2]oct-2-enes to yield 4-azatetracyclo[4.4.0.0.0]decanes Sándor Berényi Gyöngyi Gulyás Gyula Batta Tamás Gunda and Sándor Makleit pg 1139; DOI: 10.1039/P19910001139 |
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New synthetic route to N,N-diaminohydantoins from hydrazido pyridinium salts Claudie Florac Philippe Le Grel Michéle Baudy-Floc'h and Albert Robert pg 1143; DOI: 10.1039/P19910001143 |
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Synthesis and chromatographic resolution of some chiral four-carbon 2,2-bridged biphenyls. Some unusually high selectivity factors Roland Isaksson Parviz Rashidi-Ranjbar and Jan Sandström pg 1147; DOI: 10.1039/P19910001147 |
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Conformational study of a potent human renin inhibitor: X-ray crystal structure of isopropyl (2R,3S)-4-cyclohexyl-2-hydroxy-3-{N-[(2R)-2-morpholinocarbonylmethyl-3-(1-naphthyl)propionyl]-L-histidylamino}butyrate (KRI-1314), a pentapeptide analogue with amino acid sequence corresponding to the cleavage site of angiotensinogen Mitsunobu Doi Yasuko In Masatoshi Inoue Toshimasa Ishida Kinji Iizuka Kenji Akahane Hiromu Harada Hideaki Umeyama and Yoshiaki Kiso pg 1153; DOI: 10.1039/P19910001153 |
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Methyl 2-methyldithiocarbazate in heterocyclic synthesis: preparation of 2,5-disubstituted 1,3,4-thiadiazoles, bis(1,3,4-thiadiazolium) salts and macrocycles containing 1,3,4-thiadiazole subunits. X-Ray crystal structure of 2,2-bis[4,5-dihydro-5-(2-hydroxyethylimino)-4-methyl-1,3,4-thiadiazole] Pedro Molina Arturo Espinosa Alberto Tárraga Felix Hernández Cano and Ma. Concepción Foces-Foces pg 1159; DOI: 10.1039/P19910001159 |
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Kinetic resolution of racemic aldehydes by enantioselective alkylation Masahiko Hayashi Hiroshi Miwata and Nobuki Oguni pg 1167; DOI: 10.1039/P19910001167 |
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Synthesis of thionolactones from homoallylic xanthates Seiji Iwasa Makoto Yamamoto Shigeo Kohmoto and Kazutoshi Yamada pg 1173; DOI: 10.1039/P19910001173 |
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Marine sterols. 18. Isolation and structure of four novel oxygeneted sterols from a gorgonian coral Melithaea ocracea Masaru Kobayashi and Fuyuko Kanda pg 1177; DOI: 10.1039/P19910001177 |
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Synthesis of a conformationally rigid isomaltose analogue: remarkable example of enantioselective glycosylation Klaus Sock and Troels Skrydstrup pg 1181; DOI: 10.1039/P19910001181 |
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Duality of the permanganate ion in the oxidation of imines. Oxidation of imines to amides Jan Larsen Karl Anker Jørgensen and Dorthe Christensen pg 1187; DOI: 10.1039/P19910001187 |
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Two efficient partial syntheses of gibberellin A81 from gibberellin A3 Michael H. Beale Jake MacMillan Ian K. Makinson and Christine L. Willis pg 1191; DOI: 10.1039/P19910001191 |
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Enol formates: ruthenium catalysed formation and formylating reagents Muriel Neveux Christian Bruneau and Pierre H. Dixneuf pg 1197; DOI: 10.1039/P19910001197 |
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5-Amino-3-imino-2,3-dihydrofurans and 3-amino-5-imino-2,5-dihydrofurans from 4,4-dialkyl-4-hydroxybut-2-ynenitriles Stephen R. Landor P. Forche Asobo Z. Tanee Fomum and Ralph Roberts pg 1201; DOI: 10.1039/P19910001201 |
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Polyfunctional bicyclo[6.3.0]undecane intermediates Alan P. Chorlton Gareth A. Morris and James K. Sutherland pg 1205; DOI: 10.1039/P19910001205 |
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Ring syntheses of the four N-methylprotoporphyrin isomers and of related N-methyl and N,N-dimethylporphyrins Ravindra K. Pandey (the late) Anthony H. Jackson and Kevin M. Smith pg 1211; DOI: 10.1039/P19910001211 |
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Transannular cyclisation products of a 7-ethyl idenebicyclo[3.3.2]decan-3-one Panayiotis Anastasis Ray Duffin Victor Matassa and Karl H. Overton pg 1221; DOI: 10.1039/P19910001221 |
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Robinson annulation on a carbohydrate derivative Roger V. Bonnert Joshua Howarth Paul R. Jenkins and Nicholas J. Lawrence pg 1225; DOI: 10.1039/P19910001225 |
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New selenenylation method. Synthesis of setenonaphthoquinones and selenoquinolinequinones mediated by phenyl selenide ion Makoto Sakakibara Yoshihiko Watanabe Takeshi Toru and Yoshio Ueno pg 1231; DOI: 10.1039/P19910001231 |
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Total synthesis of analogues of the -lactam antibiotics. Part 6. (6R*)-4(t-butoxycarbonyl)-2-methoxycarbonyl-3-oxacepham 1,1-dioxides Peter H. Crackett Paul Sayer Richard J. Stoodley and Colin W. Greengrass pg 1235; DOI: 10.1039/P19910001235 |
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Preparation of organic-solvent-soluble enzyme (lipase B) and characterization by gel permeation chromatography Wakako Tsuzuki Yoshio Okahata Osamu Katayama and Tateo Suzuki pg 1245; DOI: 10.1039/P19910001245 |
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Synthesis of [3H]-labelled and unlabelled 2-deoxy-2-fluoro-myo-inositol and 1-deoxy-1-fluoro-scyllo-inositol for use in studies of the phosphoinositide cycle Gordon Lowe and Fiona McPhee pg 1249; DOI: 10.1039/P19910001249 |
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The chemistry of compounds derived by microbial oxidation of benzene and derivatives: cycloadditions involving 1,2-isopropylidenedioxycyclohexadienes Mary F. Mahon Kieren Molloy Carlos A. Pittol Robert J. Pryce Stanley M. Roberts George Ryback Vladimir Sik Julian O. Williams and John A. Winders pg 1255; DOI: 10.1039/P19910001255 |
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Chemistry of cephems: C-4 substitution and sulphoxide de-oxygenation reactions David H. Bremner and Neil S. Ringan pg 1265; DOI: 10.1039/P19910001265 |
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Macrocyclic polyamines [16]-N3 and [21]-N4: synthesis and study of their ATP complexation by 31P nuclear magnetic resonance spectroscopy T. P. Prakash Pattuparanbil Rajamohanan and K. Wagappa Ganesh pg 1273; DOI: 10.1039/P19910001273 |
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Reaction of quinazoline-2,4(1H,3H)-dione with N-substituted cyclic amines in combination with phosphoryl trichloride Kenji Yoshida Takashi Tanaka and Hiroshi Ohtaka pg 1279; DOI: 10.1039/P19910001279 |
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Biosynthesis of hyalodendrin and didethiobis(methylthio)hyalodendrin, sulphur-containing 2,5-dioxopiperazines of the 3S,6S series Maria I. Pita Boente Gordon W. Kirby Graham L. Patrick and David J. Robins pg 1283; DOI: 10.1039/P19910001283 |
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New route to ()-magydardienediol, a diterpene isolated from Magydaris panacifolia(Vahl) Lange, via a sequential intra- and inter-molecular radical C–C bond-forming reaction Hajime Nagano Yuko Seko and Kyoko Nakai pg 1291; DOI: 10.1039/P19910001291 |
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Synthesis of spheroidal C20-polyquinanes in a route towards dodecahedrane Goverdhan Mehta Mangalam S. Nair and K. Raja Reddy pg 1297; DOI: 10.1039/P19910001297 |
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A practical route for enantioselective total synthesis of (+)-11-deoxy-19-norcorticosterone via intramolecular Diels–Alder addition to an ortho-quinodimethane Hideo Nemoto Atsushi Satoh Masahiro Ando and Keiichiro Fukumoto pg 1309; DOI: 10.1039/P19910001309 |
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Homochiral fluoroorganic compounds. Part 17. 2-(p-Tolylsulphinylmethyl)-3-fluorotetrahydro-pyrans and -furans through intramolecular oxymercuriation Alberto Arnone Pierfrancesco Bravo Giuseppe Resnati and Fiorenza Viani pg 1315; DOI: 10.1039/P19910001315 |
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The reaction of diphenylphosphine oxide and diphenylphosphine with dialkyl azodicarboxylates David Camp Peter C. Healy Ian D. Jenkins Brian W. Skelton and Allan H. White pg 1323; DOI: 10.1039/P19910001323 |
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Studies on pyruvate decarboxylase: acyloin formation from aliphatic, aromatic and heterocyclic aldehydes David H. G. Crout Howard Dalton David W. Hutchinson and Masanori Miyagoshi pg 1329; DOI: 10.1039/P19910001329 |
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Perkin communications. Incorporation of stereospecifically deuteriated tyrosines into caldariellaquinone in Sulfolobus acidocaldarius Dan Zhou and Robert H. White pg 1335; DOI: 10.1039/P19910001335 |
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Enantio- and diastereo-selective synthesis of pipecolic acid derivatives using the aza-Diels–Alder reaction of imines with dienes Patrick D. Bailey Robert D. Wilson and George R. Brown pg 1337; DOI: 10.1039/P19910001337 |
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Enantioselective alkylation of N-(trimethylsilyl)benzaldehyde imine Shinichi Itsuno Hiromitsu Yanaka Chiharu Hachisuka and Koichi Ito pg 1341; DOI: 10.1039/P19910001341 |
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Thermolysis and photolysis of 6-diazidomethyl-1,2,3,4-tetrahydro-2-oxopyrimidine-5-carboxylates C. Oliver Kappe and Gerald Färber pg 1342; DOI: 10.1039/P19910001342 |
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Evidence for phthalimidonitrene as a common intermediate in several extrusion reactions Robert S. Atkinson David W. Jones and Brian J. Kelly pg 1344; DOI: 10.1039/P19910001344 |
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First example of epibromohydrin as an acetone equivalent Fabrice Vergne David J. Aitken and Henri-Philippe Husson pg 1346; DOI: 10.1039/P19910001346 |
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Structural studies on bio-active molecules. Part 17. Crystal structure of 9-(2-phosphonomethoxyethyl)adenine (PMEA) Carl H. Schwalbe William Thomson and Sally Freeman pg 1348; DOI: 10.1039/P19910001348 |
Issue 6
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Front cover pg X021; DOI: 10.1039/P199100FX021 |
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Back cover pg X023; DOI: 10.1039/P199100BX023 |
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Contents pages pg P025; DOI: 10.1039/P199100FP025 |
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Initiation mechanisms in radical polymerization: reaction of isopropoxyl radicals with methyl methacrylate W. Ken Busfield Ian D. Jenkins Ezio Rizzardo David H. Solomon and San H. Thang pg 1351; DOI: 10.1039/P19910001351 |
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Some substituted 9-phenylxanthen-9-yl protecting groups Piers R. J. Gaffney Liu Changsheng M. Vaman Rao Colin B. Reese and John G. Ward pg 1355; DOI: 10.1039/P19910001355 |
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The regioselectivity of cycloaddition reactions between diazomethane and 3-vinylcephalosporins Stephen C. M. Fell Michael J. Pearson George Burton and John H. Bateson pg 1361; DOI: 10.1039/P19910001361 |
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Enzymatic resolution of sterically demanding bicyclo[3.2.0]heptanes: evidence for a novel hydrolase in crude porcine pancreatic lipase and the advantages of using organic media for some of the biotransformations Ian C. Cotterill Alan G. Sutherland Stanley M. Roberts Robert Grobbauer Josef Spreitz and Kurt Faber pg 1365; DOI: 10.1039/P19910001365 |
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Stereoselective synthesis of (Z)-methyl 3-perfluoroalkyl-4-substitutedphenylbutenoates Ding Weiyu Pu Jiaqi Zhang Chunming and Cao Weiguo pg 1369; DOI: 10.1039/P19910001369 |
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Synthesis and stereoselective reduction of ()-, (+)- and (–)-6-substituted-6-azabicyclo[3.2.1]octan-3-one J. Bruce Pitner Philip Abraham Young J. Joo David J. Triggle and F. Ivy Carroll pg 1375; DOI: 10.1039/P19910001375 |
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1,3-versus 1,2-Asymmetric induction in the reduction of -hydroxy ketones by intramolecular hydrosilylation Saeed Anwar Gavin Bradley and Anthony P. Davis pg 1383; DOI: 10.1039/P19910001383 |
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Heterocyclic transformations. Part 3. Thiolate ion-induced transformations of 6-methyl-1,3-oxazine-2,4(3H)-diones to 3-(alkyl/arylthio)but-2-enamides Subodh Kumar Swapandeep Singh Chimni and Harjit Singh pg 1391; DOI: 10.1039/P19910001391 |
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Lewis acid-induced ene-cyclization of -olefinic trifluoromethyl ketones: access to alicyclic compounds bearing a CF3 group Ahmed Abouabdellah Corinne Aubert Jean-Pierre Bégué Danièle Bonnet-Delpon and Jean Guilhem pg 1397; DOI: 10.1039/P19910001397 |
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Reaction of aryl biphenyl-2-yl thioketones with ditosyldiazomethane; internal cyclisation of the thioketone S-methylides to afford benzo[c]thiophene derivatives. Structure determination of the products by Raney nickel degradation and X-ray crystallographic analysis Takao Saito Hiroshi Ayukawa Norio Sumizawa Takuya Shizuta Shinichi Motoki and Kimiko Kobayashi pg 1405; DOI: 10.1039/P19910001405 |
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Metabolites of the higher fungi. Part 26. Cubensic acid, 3,7,11,15-tetra hydroxy-18-(hydroxymethyl)-2,4,6,10,14,16,20-heptamethyldocosa-4E,8E,12E,16E-tetraenoic acid, a novel polysubstituted C22 fatty acid from the fungus Xylaria cubensis(Mont.) Fr. with substituents and substitution pattern similar to the macrolide antibiotics Raymond L. Edwards Derek J. Maitland and Anthony J. S. Whalley pg 1411; DOI: 10.1039/P19910001411 |
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New and convenient synthesis of (Z)-heneicos-6-en-11-one, the douglas fir tussock moth (Orgyia pseudotsugata) sex pheromone, and (Z)-non-6-en-2-one, the immediate precursor for the synthesis of brevicomin, the sex attractant of the western pine beetle Dentroctonus brevicomis Roberto Ballini pg 1419; DOI: 10.1039/P19910001419 |
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Bridged-ring nitrogen compounds. Part 10. Synthesis of bridged 3-benzazepine derivatives as conformationally restricted dopamine analogues Robert G. Gentles David Middlemiss George R. Proctor and Andrew H. Sneddon pg 1423; DOI: 10.1039/P19910001423 |
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Model studies related to the synthesis of fredericamycin A Derrick L. J. Clive Ahmad Khodabocus Peter G. Vernon A. Gaëtan Angoh Luc Bordeleau Donald S. Middleton Christopher Lowe and Dorit Kellner pg 1433; DOI: 10.1039/P19910001433 |
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Asymmetric synthesis of (R)-(–)- and (S)-(+)-muscone by enantioselective conjugate addition of chiral dimethylcuprate to (E)-cyclopentadec-2-en-1-one Kazuhiko Tanaka Hideki Ushio Yasuyuki Kawabata and Hitomi Suzuki pg 1445; DOI: 10.1039/P19910001445 |
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Tricarbonylchromium complexes of 2-aminotetralin derivatives. Hydride displacement of aromatic methoxy groups Marie Persson Uli Hacksell and Ingeborg Csöregh pg 1453; DOI: 10.1039/P19910001453 |
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Isolation of new isocyanide metabolites of Trichoderma hamatum as their (5-pentamethylcyclopentadienyl)- or (5-ethyltetramethylcyclopentadienyl)-di--thiocyanato-rhodium complexes R. K. Boyd A. J. McAlees A. Taylor and J. A. Walter pg 1461; DOI: 10.1039/P19910001461 |
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Synthetic investigations on illudinine: a new synthesis of methyl 8-methoxy-2,2-dimethyl-7-oxo-1,2,3,5,6,7-hexahydro-s-indacene-4-carboxylate Talupuru Girija P. Sathya Shanker and G. S. R. Subba Rao pg 1467; DOI: 10.1039/P19910001467 |
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New synthesis of sulphides from vinylic ethers. Application to the syntheses of 3-alkylsulphenyl-, 3-alkylsulphinyl- and 3-alkylsulphonyl-piperidinium chlorides Carlos Alvarez Lbarra Rocío Cuervo María C. Fernández-Monreal Marta García María P. Ruiz and Ernest L. Eliel pg 1473; DOI: 10.1039/P19910001473 |
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Photosensitized oxidation of furans. Part 15. Limitations to the formation of carbonyl oxides from 2-alkoxyfurans, and direct evidence for the first 3H-1,2-dioxole M. Liliana Graziano M. Rosaria Lesce Flavio Cermola Guido Cimminiello and Rachele Scarpati pg 1479; DOI: 10.1039/P19910001479 |
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The synthesis of (Z)-penta-2,4-dien-1-ol and substituted (E)-pentadienols by the stereochemically controlled Horner–Wittig reaction Paul S. Brown Nicholas Greeves Andrew B. McElroy and Stuart Warren pg 1485; DOI: 10.1039/P19910001485 |
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Counterattack reagent: hexamethyldisilathiane in the conversion of nitro compounds into nitriles Shwu-Chen Tsay Paul Gani and Jih Ru Hwu pg 1493; DOI: 10.1039/P19910001493 |
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Acid-catalysed cleavage of some 3-substituted 5,6-epoxy-7-norandrostan-17-ones Nazar Flaih James R. Hanson Peter B. Hitchcock and Vasuki Thangavelu pg 1497; DOI: 10.1039/P19910001497 |
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N-alkenyl acylketene S, N-acetals from 2,3-dihydro-1,3-benzothiazoles and carboxylic anhydrides. X-Ray molecular structure of 2-(butyrylmethylene)N-(cyclohex-1-enyl)-2,3-dihydro-1,3-benzothiazole Giuseppe Trapani Andrea Latrofa Antonia Reho Massimo Franco Gaetano Liso and Francesca Stasi pg 1505; DOI: 10.1039/P19910001505 |
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Syntheses of the ethyl esters of the plant host-selective (H-S) toxins (AF-IIa, AF-IIc and AK-II) produced by pathotypes of Alternaria alternata Leslie Crombie Mark A. Horsham and Sandra R. M. Jarrett pg 1511; DOI: 10.1039/P19910001511 |
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Efficient direct aromatic amination by parent nitrenium ion. Photolyses of 1-aminopyridinium and 1-aminoquinolinium salts and effect of crown ethers Hiroshi Takeuchi Dai Higuchi and Taki Adachi pg 1525; DOI: 10.1039/P19910001525 |
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Intramolecular homolytic displacements. Part 18. Stereochemical effects of the induced decomposition of unsaturated peroxidic compounds leading to the formation of five-membered rings E. Montaudon X. Lubeigt and B. Maillard pg 1531; DOI: 10.1039/P19910001531 |
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Lonitoside: a novel monoterpenoid macrolide diglycoside from Lonicera nitida Richard T. Brown Bukar E. N. Dauda Mythily Kandasamy and Cid A. M. Santos pg 1539; DOI: 10.1039/P19910001539 |
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Total syntheses of natural (+)-(4R,6R)-4-hydroxy-6-pentylvalerolactone and of (–)-(6R)-massoialactone Frank Bennett David W. Knight and Garry Fenton pg 1543; DOI: 10.1039/P19910001543 |
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One-pot oxapropellane skeleton formation based on conjugate addition Chenglin Fang Kyoko Suganuma Hiroshi Suemune and Kiyoshi Sakai pg 1549; DOI: 10.1039/P19910001549 |
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A novel competition between C–Se and C–Si cleavages in cyclization of -seleno--silyl-substituted divinyl ketones Shoko Yamazaki Wataru Mizuno and Shinichi Yamabe pg 1555; DOI: 10.1039/P19910001555 |
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Synthesis of 1,2-seco analogues of dideoxy didehydro nucleosides as potential antiviral agents Muhammad Azymah Claude Chavis Marc Lucas and Jean-Louis Imbach pg 1561; DOI: 10.1039/P19910001561 |
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Acid-catalysed cyclisation of o-sulphonamido ketene dithioacetal S-oxides: a novel synthesis of the indole ring system Alan T. Hewson Kevin Hughes Stewart K. Richardson David A. Sharpe and Alan H. Wadsworth pg 1565; DOI: 10.1039/P19910001565 |
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Regioselectivity in the reactions of methoxydehydrobenzenes with furans. Part 1. Reactions of 3-methoxydehydrobenzene and 3-(methoxycarbonyl)-dehydrobenzene with 2-substituted furans Robin G. F. Giles Melvyn V. Sargent and Hercules Sianipar pg 1571; DOI: 10.1039/P19910001571 |
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Regioselectivity in the reactions of methoxydehydrobenzenes with furans. Part 2. 2-Methoxyfuran and methoxydehydrobenzenes Robin G. F. Giles Andrew B. Hughes and Melvyn V. Sargent pg 1581; DOI: 10.1039/P19910001581 |
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Regioselectivity in the reactions of methoxydehydrobenzenes with furans. Part 3. 3-Methoxyfuran and methoxydehydrobenzenes and the chemistry of their adducts Robert W. Baker Teresa M. Baker (née Nicoletti) Anthony A. Birkbeck Robin G. F. Giles Melvyn V. Sargent Brian W. Skelton and Allan H. White pg 1589; DOI: 10.1039/P19910001589 |
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Preparation and reactions of 2-chloroperfluorocycloalkenylcopper reagents Yeon-Tae Jeong Ji-Hun Jung Seong-Kwon Shin Yong-Gyu Kim In-Howa Jeong and Sam-Kwon Choi pg 1601; DOI: 10.1039/P19910001601 |
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Perkin communications. 1,2-Disulphenylation of alkenes induced by a hypervalent iodine(III) reagent [PhlO–TfOH] Tsugio Kitamura Jun-Ichi Matsuyuki and Hiroshi Taniguchi pg 1607; DOI: 10.1039/P19910001607 |
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Biotransformation of endo-bicyclo[2.2.1 ]heptan-2-ols and endo-bicyclo[3.2.0]hept-2-en-6-ol into the corresponding lactones Andrew J. Willetts Christopher J. Knowles Melissa S. Levitt Stanley M. Roberts Helen Sandey and Nigel F. Shipston pg 1608; DOI: 10.1039/P19910001608 |
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How is the 1,2-alternate conformer formed in tetra-O-alkylation of p-tert-butylcalix[4]arene? Koji Iwamoto Koji Araki and Seiji Shinkai pg 1611; DOI: 10.1039/P19910001611 |
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Enantioselective phenylation of prochiral aldehydes using a kinetically formed chiral complex between Grignard–zinc halide reagent and N,N-dibutylnorephedrine Kenso Soai Yasuhiro Kawase and Atsushi Oshio pg 1613; DOI: 10.1039/P19910001613 |
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Synthesis of necine bases from homoproline derivatives David W. Knight Andrew C. Shares and Peter T. Gallagher pg 1615; DOI: 10.1039/P19910001615 |
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Corrigendum W. Carruthers P. Coggins and J. B. Weston pg 1617; DOI: 10.1039/P19910001617 |
Issue 7
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Front cover pg X025; DOI: 10.1039/P199100FX025 |
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Back cover pg X027; DOI: 10.1039/P199100BX027 |
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Contents pages pg P029; DOI: 10.1039/P199100FP029 |
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A method for intramolecular syn delivery of an alkyl group to the proximal olefinic carbon in cyclooct-5-enols Dirk Friedrich and Leo A. Paquette pg 1621; DOI: 10.1039/P19910001621 |
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An approach to a synthetic carboxylate-binding pocket based on -avoparcin Martin J. Stone Martha S. Van Dyk Paul M. Booth and Dudley H. Williams pg 1629; DOI: 10.1039/P19910001629 |
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Structural elucidation and solution conformation of the novel herbicide hydantocidin Hideyuki Haruyama Tomoko Takayama Takeshi Kinoshita Michio Kondo Mutsuo Nakajima and Tetsuo Haneishi pg 1637; DOI: 10.1039/P19910001637 |
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Structural studies of MM46115, a novel tetronic acid containing macrolide with antiviral and antibacterial activity isolated from Actinomadura pelletieri Kong Luk and Simon A. Readshaw pg 1641; DOI: 10.1039/P19910001641 |
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[3 + 2] Carbocyclization reactions of linear -ketoenamines with conjugated nitroolefins Fulvia Felluga Patrizia Nitti Giuliana Pitacco and Ennio Valentin pg 1645; DOI: 10.1039/P19910001645 |
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Structural elucidation of new dimeric ellagitannins from Quercus robur L. roburins A–E Catherine L. M. Hervé Du Penhoat Veronique M. F. Michon Shuyun Peng Carole Viriot Augustin Scalbert and Douglas Gage pg 1653; DOI: 10.1039/P19910001653 |
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Sodium-selective macrocyclic polyamine carriers having pyridine-functionalized sidearms Hiroshi Tsukube Kouichi Yamashita Tadashi Iwachido and Michio Zenki pg 1661; DOI: 10.1039/P19910001661 |
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New approach to sugar derivatives by Pummerer reactions of optically active suiphoxide and sulphide having a 7-oxabicyclo[2.2.1]heptane ring system Tamiko Takahashi Hironori Kotsubo and Toru Koizumi pg 1667; DOI: 10.1039/P19910001667 |
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Reactions of stabilised phosphorus ylide with nitrilium trifluoromethanesulphonate salts Muhammad I. K. Amer Brian L. Booth and Pogu Bitrus pg 1673; DOI: 10.1039/P19910001673 |
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Synthesis of dimethoxypyrimidines and uracils with novel C-5 substituents Nitya G. Kundu and Lakshmi N. Chaudhuri pg 1677; DOI: 10.1039/P19910001677 |
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2-Benzopyran-3-ones as synthetic building blocks; regioselective Diels–Alder additions with simple olefins leading to aromatic steroids David A. Bleasdale and David W. Jones pg 1683; DOI: 10.1039/P19910001683 |
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Enantiospecific synthesis with amino acids. Part 1. Tryptophan as a chiron for the synthesis of -substituted tryptophan derivatives Gregory T. Bourne David Crich John W. Davies and David C. Horwell pg 1693; DOI: 10.1039/P19910001693 |
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A facile general route to enantiomeric 1-(4-hydroxyphenyl)alkanols, and an improved synthesis of 4-vinylphenol E. Thomas Everhart and J. Cymerman Craig pg 1701; DOI: 10.1039/P19910001701 |
Synthesis and asymmetric Diels–Alder reaction of dimethyl ( d-isoborneol-10-sulphinyl )maleate: novel route to key intermediates for synthesis of some carbocyclic nucleosides and terpenoidsYoshitsugu Arai Kazuya Hayashi Makoto Matsui Toru Koizumi Motoo Shiro and Kaoru Kuriyama pg 1709; DOI: 10.1039/P19910001709 |
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Synthesis of 3-hydroperoxyindolin-2-ones and oxidation of sulphides to suiphoxides by 3-hydroperoxyindolin-2-ones Takehiko Nishio pg 1717; DOI: 10.1039/P19910001717 |
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Inter- and intra-molecular reactions of indol-2-yl carbenes and related species. Preparation of 1,1a,2,8b-tetrahydroazirino[2,3 : 3,4]pyrrolo[1,2-a]indoles Graham B. Jones Christopher J. Moody Albert Padwa and Jamal M. Kassir pg 1721; DOI: 10.1039/P19910001721 |
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Radical-induced cyclization of the S-methyl dithiocarbonate of 1,2-O-isopropylidene--xylose Piet A. M. Herdewijn Arthur Van Aerschot Liv Jie Eddy Esmans Jeannine Feneau-Dupont and Jean-Paul Declercq pg 1729; DOI: 10.1039/P19910001729 |
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Syntheses and thermal behaviour of 9-substituted 9-thia-10-azaphenanthrenes Hiroshi Shimizu Koji Ikedo Koji Hamada Michinori Ozawa Harutoshi Matsumoto Kunihiro Kamata Haruhiko Nakamura Min Ji Tadashi Kataoka and Mikio Hori pg 1733; DOI: 10.1039/P19910001733 |
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A novel synthesis of cyclobutane sesquiterpenes, ()-italicene and ()isoitalicene Toshio Honda Koji Ueda Masayoshi Tsubuki Tetsuya Toya and Akira Kurozumi pg 1749; DOI: 10.1039/P19910001749 |
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Synthesis and biological activity of O-glycosylated morphiceptin analogues Eduard Bardají Joseph L. Torres Pere Clapés Fernando Albericio George Barany Raquel E. Rodríguez María P. Sacristán and Gregorio Valencia pg 1755; DOI: 10.1039/P19910001755 |
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Perkin communications. 4-(1,2,4-Triazolyl) cation: possible generation and reactions Rudolph A. Abramovitch Joseph M. Beckert and William T. Pennington pg 1761; DOI: 10.1039/P19910001761 |
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Unexpected synthesis of a 1H-pyrrolo[2,3-e]-1,2,4-triazine Andrew S. Wells Peter W. Sheldrake Ivan Lantos and Drake S. Eggleston pg 1762; DOI: 10.1039/P19910001762 |
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Hydrolytic and reductive action of fermenting yeast on a keto acetate: synthesis of (+)-endo-brevicomin Giuseppe Pedrocchi-Fantoni and Stefano Servi pg 1764; DOI: 10.1039/P19910001764 |
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Synthesis of new tricyclic cephalosporins from cephalosporin 3-triphenylphosphorane Kenji Sakagami Mitsuru Tashiro Yasuo Takeuchil and Minoru Hatanaka pg 1766; DOI: 10.1039/P19910001766 |
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Preparation of secondary carbinamines via N-boryl imines generated in situ from nitriles and borane–tetrahydrofuran Shinichi Itsuno Chiharu Hachisuka and Koichi Ito pg 1767; DOI: 10.1039/P19910001767 |
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First observation of a C–CN bond cleavage during the reduction of a nitrile with LiAlH4: a S.E.T. Reaction? J.-M. Mattalia A. Samat and M. Chanon pg 1769; DOI: 10.1039/P19910001769 |
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Corrigendum Hans Suschitzky Walter Kramer Richard Neidlein Peter Rosyk and Thomas Bohn pg 1771; DOI: 10.1039/P19910001771 |
Issue 8
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Front cover pg X029; DOI: 10.1039/P199100FX029 |
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Back cover pg X031; DOI: 10.1039/P199100BX031 |
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Contents pages pg P033; DOI: 10.1039/P199100FP033 |
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Stereoselective transformation of ajmaline into three minor Gelsemium alkaloids, koumidine, (19Z)-anhydrovobasinediol [(19Z)-taberpsychine] and N-demethoxyrankinidine and their absolute configuration Mariko Kitajima Hiromitsu Takayama and Shin-ichiro Sakai pg 1773; DOI: 10.1039/P19910001773 |
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Partial syntheses of the isomerically pure magnesium(II) protoporphyrin IX monomethyl esters, and their identification Fuu-Yau Shiau Barry J. Whyte Paul A. Castelfranco and Kevin M. Smith pg 1781; DOI: 10.1039/P19910001781 |
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Secondary mould metabolites. Part 34. Isolation and structure elucidation of illudosin, a novel sesquiterpene from Clitocybe illudens using one and two dimensional NMR techniques Alberto Arnon Rosanna Cardillo Gianluca Nasini and Orso Vajna de Pava pg 1787; DOI: 10.1039/P19910001787 |
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A study of the regioselectivity of oxygen insertion in the Baeyer–Villiger oxidation of bicyclo[2.2.1]heptan-2-ones Peter Hamley Andrew B. Holmes David R. Marshall and John W. M. MacKinnon pg 1793; DOI: 10.1039/P19910001793 |
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Total synthesis and absolute stereostructure of (+)-dysideapalaunic acid Hisahiro Hagiwara and Hisashi Uda pg 1803; DOI: 10.1039/P19910001803 |
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p-Hydroxymethadone: synthesis, crystal structure and CD properties George A. Brine Karl G. Boldt Doriswamy Prakash Dennis J. Kotchmar Virginia C. Bondeson David J. Bradley P. Singh and F. Ivy Carroll pg 1809; DOI: 10.1039/P19910001809 |
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A Diels–Alder approach to functionalized cis-hydroisoquinolines. Attempts to prepare a tricyclic core unit of manzamine A Dennis de Oliveira Imbroisi and Nigel S. Simpkins pg 1815; DOI: 10.1039/P19910001815 |
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Synthesis of samanine Walter A. Cristofoli and Michael Benn pg 1825; DOI: 10.1039/P19910001825 |
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Selenomethylpyrroles: their use for synthesis of dipyrrylmethanes (dipyrrins), tripyranes and bilanes Craig J. Hawker Athena Philippides and Alan R. Battersby pg 1833; DOI: 10.1039/P19910001833 |
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N-hydroxy amides. Part 9. Synthesis and lron(III) complexes of tripodal hydroxamic acids derived from -(N-hydroxyamino)alkanoic acids and tris(2-aminoethyl)amine Akira Katoh and Masayasu Akiyama pg 1839; DOI: 10.1039/P19910001839 |
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Site-selective and regioselective cycloaddition of N-propadienylanilines with nitrile oxides. Claisen-type rearrangement of the cycloadducts Gianluigi Broggini and Gaetano Zecchi pg 1843; DOI: 10.1039/P19910001843 |
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Interaction of indole derivatives with biologically important aromatic compounds. Part 22. Importance of simultaneous co-operation of hydrogen-bond pairing and stacking interactions for recognition of guanine base by a peptide: X-ray crystal analysis of 7-methylguanosine-5-phosphate–tryptophanylglutamic acid complex Toshimasa Ishida Hiromi Iyo Hitoshi Ueda Mitsunobu Doi Masatoshi Inoue Susumu Nishimura and Kunihiro Kitamura pg 1847; DOI: 10.1039/P19910001847 |
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Nitrobicyclo[2.2.1]heptanes. Part 8. Neighbouring-group participation by nitro groups during the reaction of endo-nitrobicyclo[2.2.1 ]heptenes with electrophiles Joseph P. Michael Norman F. Blom and Luéta-Ann Glintenkamp pg 1855; DOI: 10.1039/P19910001855 |
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The alkaloids of Margaritaria indica. Part 2. The structures of 4-epiphyllanthine, margaritarine and the structural revision of securinol A Dayar Arbain Anthony A. Girkbeck Lindsay T. Byrne Melvyn V. Sargent Brian W. Skelton and Allan H. White pg 1863; DOI: 10.1039/P19910001863 |
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Structure and spectral properties of -carbolines. Part 4. Synthesis of the new ring system: 9,10,15,15b-tetrahydroindolo[1,2 : 4,3]pyrazino[2,1-a]-carbolin-7(6H)-one Stanis  aw Misztal Zofia Bielecka and Jerzy L. Mokrosz pg 1871; DOI: 10.1039/P19910001871 |
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Phosphonic systems. Part 3. Diethyl prop-2-enylphosphonate, a new and versatile substrate in carbon–carbon bond formation Ana M. M. M. Phillips and Tomasz A. Modro pg 1875; DOI: 10.1039/P19910001875 |
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Synthesis and properties of 3,6-bis(dimethylamino)fluorenylium dye ethynologues: new highly bathochromic -electron system Shin'ichi Nakatsuji Hiroyuki Nakazumi Hiroko Fukuma Tomio Yahiro Kenichiro Nakashima Masahiko Iyoda and Shuzo Akiyama pg 1881; DOI: 10.1039/P19910001881 |
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Synthesis of the two enantiomers of 1-chloro-1,1-difluoro-3-(p-tolylsulphonyl)propan-2-ol by microbial reduction of the parent propanone and transformation into 3,3-difluorotetrahydrofuran derivatives Alberto Arnone Rosanna Bernardi Pierfrancesco Bravo Rosanna Cardillo Dario Ghiringhelli and Giancarlo Cavicchio pg 1887; DOI: 10.1039/P19910001887 |
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Silicon-directed diene synthesis Paul A. Brown Roger V. Bonnert Paul R. Jenkins Nicholas J. Lawrence and Mohammed R. Selim pg 1893; DOI: 10.1039/P19910001893 |
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Synthetic studies on electron transport inhibitors. Part 1. Chiral synthesis of a synthon for myxalamide D, piericidin A, and the actinopyrones Catherine M. Cox and Donald A. Whiting pg 1901; DOI: 10.1039/P19910001901 |
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Synthetic studies on electron transport inhibitors. Part 2. Approaches to the synthesis of myxalamide D Catherine M. Cox and Donald A. Whiting pg 1907; DOI: 10.1039/P19910001907 |
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Studies related to anthracyclines. Part 3. Stereoselective synthesis of (+)-daunomycinone W. David Edwards Ramesh C. Gupta Clive M. Raynor and Richard J. Stoodley pg 1913; DOI: 10.1039/P19910001913 |
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Total synthesis of kanshone A, a sesquiterpene isolated from Nardostachys chinensis (Valerianaceae) Motoo Tori Hirosuke Furuta and Yoshinori Asakawa pg 1919; DOI: 10.1039/P19910001919 |
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Oxymetallation. Part 23. Peroxymercuriation of bicyclo[n.1.0]alkanes A. J. Bloodworth Kam Hung Chan Christopher J. Cooksey and Neville Hargreaves pg 1923; DOI: 10.1039/P19910001923 |
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Novel reaction of dibutyl(cyanomethyl)telluronium chloride with carbonyl compounds mediated by organolithium reagents: highly efficient synthesis of -hydroxy nitriles Zhang-Lin Zhou Lin-Lan Shi and Yao-Zeng Huang pg 1931; DOI: 10.1039/P19910001931 |
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Bioconversion of triterpenes by mycobacteria. Structure and conformation of the products of degradation of 7,11-dioxodihydrolanosterol by Mycobacterium phlei Said Jabbouri Patricia Chosson Pierre Tisnes Renée Rao Philippe Servin and Jean-Claude Promé pg 1935; DOI: 10.1039/P19910001935 |
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Total synthesis of citreomontanin, a putative polyene precursor to citreoviridin and citreoviridinol produced by Penicillium sp. Prakash Patel and Gerald Pattenden pg 1941; DOI: 10.1039/P19910001941 |
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Total synthesis of ()-citreoviral, based on a biogenetic model, and formal synthesis of ()-citreoviridin Martin C. Bowden Prakash Patel and Gerald Pattenden pg 1947; DOI: 10.1039/P19910001947 |
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New stereoselective approach to hydroxy-substituted tetrahydrofurans. Total synthesis of ()-citreoviral Michael J. Begley Martin C. Bowden Prakash Patel and Gerald Pattenden pg 1951; DOI: 10.1039/P19910001951 |
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Total synthesis of preaurovertin, putative biogenetic precursor of aurovertin. Biosynthetic interrelationships between the aurovertins, citreoviridinols and asteltoxin Judith E. Forbes and Gerald Pattenden pg 1959; DOI: 10.1039/P19910001959 |
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Epoxides in synthesis. Synthesis of the novel 2,6-dioxabicyclo[3.2.1]octane units in the citreoviridinols and the aurovertins Judith E. Forbes Martin C. Bowden and Gerald Pattenden pg 1967; DOI: 10.1039/P19910001967 |
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Rearrangements of pyrimido- and diazepino-[1,2-a]indoles: syntheses of 1,5-benzodiazocines and 1,6-benzodiazonines Ian A. Cliffe Kenneth Heatherington and Alan C. White pg 1975; DOI: 10.1039/P19910001975 |
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Synthesis of 12-oxophytodienoic acid (12-oxoPDA) and the compounds of its enzymic degradation cascade in plants, OPC-8:0, -6:0, -4:0 and -2:0 (epi-jasmonic acid), as their methyl esters Leslie Crombie and Kamlesh M. Mistry pg 1981; DOI: 10.1039/P19910001981 |
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Biosynthesis of natural products with a P–C bond. Part 8: on the origin of the oxirane oxygen atom of fosfomycin in Streptomyces fradiae Friedrich Hammerschmidt pg 1993; DOI: 10.1039/P19910001993 |
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Efficient synthesis of 5-demethyl-6-methylisoellipticine and utilization of the methodology to prepare angular and linear pyridocarbazoles Arun C. Karmakar Gandhi K. Kar and Jayanta K. Ray pg 1997; DOI: 10.1039/P19910001997 |
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Pyrrolizidine alkaloid biosynthesis. Synthesis of N-([4-14C]-4-aminobutyl)-1,2-didehydropyrrolidinium and its incorporation into different pyrrolizidine bases (necines) Alastair A. Denholm Henry A. Kelly and David J. Robins pg 2003; DOI: 10.1039/P19910002003 |
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Chemistry of 3-oxygenated isoxazoles. Formation and X-ray analysis of ethyl (RS)-6-tert-butyl-5-methyl-4-oxo-2,3-dihydro-4H-1,3-oxazine-2-carboxylate, an isoxazol-3(2H)-one rearrangement product Lotte Brehm Ulf Madsen Jørgen S. Johansen and Povl Krogsgaard-Larsen pg 2009; DOI: 10.1039/P19910002009 |
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Methylene transfer from dimethyloxosulphonium methylide to N-arylsulphonylaziridines: stereospecific synthesis of N-arylsulphonylazetidines Upender K. Nadir Ms. Raman L. Sharma and Veerinder K. Koul pg 2015; DOI: 10.1039/P19910002015 |
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4,7-Dioxooctanoic acid from the acid catalysed reaction of (E)-4-(2-furyl)but-3-enone. Electrochemical hydrogenation of some furan derivatives Ajita M. Abeysekera Shiyamalie Amaratunge James Grimshaw Nihal Jayeweera and Gemini Senanayake pg 2021; DOI: 10.1039/P19910002021 |
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Asymmetric synthesis of optically active alcohols with two chiral centres from a racemic aldehyde by the selective addition of dialkylzinc reagents using chiral catalysts Seiji Niwa Toshihiro Hatanaka and Kenso Soai pg 2025; DOI: 10.1039/P19910002025 |
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Samarium(II) diiodide mediated coupling of bis(bromomethyl)arenes. Facile synthesis of [2n]cyclophanes without using high-dilution techniques Senji Takahashi and Nobuo Mori pg 2029; DOI: 10.1039/P19910002029 |
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-Alkylation of the Diels–Alder cycloadducts of the thioaldehyde, ethyl thioxoacetate Gordon W. Kirby Mohinder P. Mahajan and Mohammad S. Rahman pg 2033; DOI: 10.1039/P19910002033 |
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A convergent synthesis of methylenomycin B and analogues via selenium assisted cyclopenta-annelation Jacob Mathew pg 2039; DOI: 10.1039/P19910002039 |
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Lead tetraacetate oxidation of 1- and 2-amino-5-phenyl[1,2,3]triazolo[4,5-d][1,2,3]triazoles; synthesis of a fused 1,2,3,4-tetrazine Terumitsu Kaihoh Takashi Itoh Kentaro Yamaguchi and Akio Ohsawa pg 2045; DOI: 10.1039/P19910002045 |
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Perkin communications. The binary reagent PhSeSePH–CuOTf: a useful phenylselenylating agent Nobuhide Miyachi Hisao Satoh and Masakatsu Shibasaki pg 2049; DOI: 10.1039/P19910002049 |
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Chemistry of 2-azabicyclo[2.2.1 ]heptan-3-one derivatives: role of the nitrogen atom in determining the stereochemistry of products isolated after formation of an incipient carbocation at C-6 Christopher F. Palmer Keith P. Parry Stanley M. Roberts and Vladimir Sik pg 2051; DOI: 10.1039/P19910002051 |
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Metal ion control of stereochemistry in the acetylation of calix[4]arene 1,3-diethers Alessandro Casnati Andrea Pochini Rocco Ungaro Roberta Cacciapaglia and Luigi Mandolini pg 2052; DOI: 10.1039/P19910002052 |
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Chemoenzymatic synthesis of some macrocyclic C13-lactones Nuala M. Maguire Mary F. Mahon Kieran C. Molloy Gordon Read Stanley M. Roberts and Vladimir Sik pg 2054; DOI: 10.1039/P19910002054 |
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Enzymatic deoximation of oximes by ultrasonically stimulated baker's yeast Ahmed Kamal Maddamsetty V. Rao and Harshadas M. Meshram pg 2056; DOI: 10.1039/P19910002056 |
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Photochemistry of ,-unsaturated ,-epoxy nitrile: a new methodology for synthesis of spiroketals Keitaro Ishii Takao Nakano Tatsuya Zenko Masashi Kotera and Masanori Sakamoto pg 2057; DOI: 10.1039/P19910002057 |
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A facile method for the preparation of allylsulphonyldifluoro-acetates and -acetamides Zhen-Yu Yang and Donald J. Burton pg 2058; DOI: 10.1039/P19910002058 |
Issue 9
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Front cover pg X033; DOI: 10.1039/P199100FX033 |
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Back cover pg X035; DOI: 10.1039/P199100BX035 |
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Contents pages pg P037; DOI: 10.1039/P199100FP037 |
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Back matter pg P041; DOI: 10.1039/P199100BP041 |
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Reactions involving fluoride ion. Part 35. Fluorinated derivatives of benzyl anions Richard D. Chambers Martin P. Greenhall and Mark J. Seabury pg 2061; DOI: 10.1039/P19910002061 |
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Biosynthesis of cholesterol and lanosterol in isolated dog hepatocytes: incorporation of [1,2-13C2]- and [2-13C2H3]-acetate, and [1-13C]acetate and [1-2H2]ethanol Shujiro Seo Hiroyuki Saito Atsuko Uomori Yohko Yoshimura Kanya Tonda Yasuhiro Nishibe Masaharu Hirata Yasuyoshi Takeuchi Ken'ichi Takeda Hiroshi Noguchi Yutaka Ebizuka Ushio Sankawa and Haruo Seto pg 2065; DOI: 10.1039/P19910002065 |
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Pyrrolidine analogues of 2,3-dideoxynucleosides: synthesis via 9-aminopurines and 1-aminopyrimidines Michael R. Harnden and Richard L. Jarvest pg 2073; DOI: 10.1039/P19910002073 |
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Application of 3-oxabicyclo[3.2.0]hept-6-ene-2,4-dione (cyclobut-3-ene-1,2-dicarboxylic anhydride) as an acetylene equivalent in cycloadditions J. I. G. Cadogan Donald K. Cameron Ian Gosney Edward J. Tinley Stuart J. Wyse and Alicia Amaro pg 2081; DOI: 10.1039/P19910002081 |
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Claisen rearrangement of prenyl ethers of isomeric acetylnaphthols and bisprenyl ethers of 4,6- and 2,4-diacetylresorcinols Ammanamanchi S. R. Anjaneyulu and Balagopala M. Isaa pg 2089; DOI: 10.1039/P19910002089 |
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Aryllead triacetates: regioselective reagents for N-arylation of amines Derek H. R. Barton Dervilla M. X. Donnelly Jean-Pierre Finet and Patrick J. Guiry pg 2095; DOI: 10.1039/P19910002095 |
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Free-radical reactions of benzenethiol and diphenyl disulphide with alkynes. Chemical reactivity of intermediate 2-(phenylthio)vinyl radicals Luisa Benati Pier Carlo Montevecchi and Piero Spagnolo pg 2103; DOI: 10.1039/P19910002103 |
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Synthesis and properties of N-cyanodimethyltetradehydro-trideca-, -pentadeca-, -heptadeca-, and -nonadeca-azafulvenes, and benzannelated N-cyanotridecaazafulvene derivatives J  ro Ojima Hiroyuki Higuchi Yoichi Sata Hiroyuki Yamamoto Toru Koizumi Masahiko Iyoda and Gaku Yamamoto pg 2111; DOI: 10.1039/P19910002111 |
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Synthetic studies on antibiotic validamycins. Part 14. Total synthesis of (+)-validamycins C, D and F Yasunobu Miyamoto and Seiichiro Ogawa pg 2121; DOI: 10.1039/P19910002121 |
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ortho-Aryloxylation of N-substituted benzamides: a new oxidizing process induced by the copper(II)/trimethylamine N-oxide system Olivia Reinaud Patrice Capdevielle and Michel Maumy pg 2129; DOI: 10.1039/P19910002129 |
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New short step synthesis of A,B-aromatic oxasteroids by intra- and intermolecular Diels–Alder reactions of 1,2-naphthoquinone dimethides generated from substituted 1,2-cyclobutanaphthalenes Kazuhiro Kobayashi Masahito Itoh and Hiroshi Suginome pg 2135; DOI: 10.1039/P19910002135 |
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Studies on the Fischer indole synthesis: rearrangements of five-, six- and seven-membered cyclic hydrazones of pyrazoline, tetrahydropyridazine and tetrahydro-1,2-diazepine series in polyphosphoric acid Tiziana Benincori Elisabetta Brenna and Franco Sannicolò pg 2139; DOI: 10.1039/P19910002139 |
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Trifluoromethylation of aliphatic halogen compounds Jean-Philippe Bouillon Christian Maliverney Robert Merényi and Heinz G. Viehe pg 2147; DOI: 10.1039/P19910002147 |
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Synthesis of dibenz[a,c]anthracene 1,2-oxide and 3,4-oxide from dibromo-trifluoroacetates: concomitant formation of oxepines Panna L. Kole and Subodh Kumar pg 2151; DOI: 10.1039/P19910002151 |
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Highly stereoselective boron trifluoride-promoted 5-endo cyclisation of epoxy-allylic stannanes Makoto Yoshitake Makoto Yamamoto Shigeo Kohmoto and Kazutoshi Yamada pg 2157; DOI: 10.1039/P19910002157 |
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Facile regio- and stereo-chemical control in epoxy-allylic stannane cyclisations Makoto Yoshitake Makoto Yamamoto Shigeo Kohmoto and Kazutoshi Yamada pg 2161; DOI: 10.1039/P19910002161 |
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Some studies on peptide analogues involving the sulphinamide group David Merricks Peter G. Sammes Edward R. H. Walker Kim Henrick and Mary M. McPartlin pg 2169; DOI: 10.1039/P19910002169 |
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The reaction of some substituted 2,3-epoxy-5-hydroxyandrostanes with hydrogen bromide in acetic acid Nazar Flaih James R. Hanson and Peter B. Hitchcock pg 2177; DOI: 10.1039/P19910002177 |
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4-(2-Hydroxyphenylmethylene)-2-phenyloxazol-5(4H)-one: a comedy of errors Sir John Cornforth and Du Ming-hui pg 2183; DOI: 10.1039/P19910002183 |
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Arene oxides of quinoline: epoxidation, N-oxidation and N-methylation reactions Derek R. Boyd R. Jeremy H. Davies Lynne Hamilton John J. McCullough and H. Patricia Porter pg 2189; DOI: 10.1039/P19910002189 |
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Stereoselectivity in electrophile-mediated cyclisations. AgI-Catalysed synthesis of disubstituted pyrrolidines; crystal structure of cis-5-phenyl-N-tosylpyrrolidin-2-ylmethyl 4-bromobenzoate Timothy Gallagher Stephen W. Jones Mary F. Mahon and Kieran C. Molloy pg 2193; DOI: 10.1039/P19910002193 |
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New 1H-benzotriazole-mediated synthesis of N,N-disubstituted thioureas and carbodiimides Alan R. Katritzky and Mikhail F. Gordeev pg 2199; DOI: 10.1039/P19910002199 |
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Diastereoselective free-radical reactions. Part 2. Synthesis of 2-deoxy--C-pyranosides by diastereoselective hydrogen-atom transfer David Crich and Linda B. L. Lim pg 2205; DOI: 10.1039/P19910002205 |
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Diastereoselective free-radical reactions. Part 3. The methyl glucopyranos-1-yl and the 1,2-O-isopropylideneglucopyranos-1-yl radicals: conformational effects on diastereoselectivity David Crich and Linda B. L. Lim pg 2209; DOI: 10.1039/P19910002209 |
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Biosynthetic origins of the polycyclic xanthone antibiotic, citreamicin Guy T. Carter Donald B. Borders Joseph J. Goodman Joseph Ashcroft Michael Greenstein William M. Maiese and Cedric J. Pearce pg 2215; DOI: 10.1039/P19910002215 |
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Chemistry of bis-spiroacetals: synthesis of cis- and trans-1-(2-methyl-1,6,8-trioxadispiro[4.1.5.3]pentadec-13-en-2-yl)methanol Margaret A. Brimble Geoffrey M. Williams and Raymond Baker pg 2221; DOI: 10.1039/P19910002221 |
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Synthesis and nuclear magnetic resonance studies of some L-fucosyl-containing disaccharides Herbert Baumann Per-Erik Jansson and Lennart Kenne pg 2229; DOI: 10.1039/P19910002229 |
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Chemoenzymatic approach to the preparation of regioselectively modified cyclodextrins. The substrate specificity of the enzyme cyclodextrin glucosyltransferase (CGTase) Sylvain Cottaz Christine Apparu and Hugues Driguez pg 2235; DOI: 10.1039/P19910002235 |
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Conformationally restricted spin labelled nucleotides: a model study of the synthesis and properties of the 2,3-O-spiro ketal of uridine and 4-oxo-2,2,6,6-tetramethyl-1-piperidyloxy Dario R. Alessi John E. T. Corrie James Feeney Ian P. Trayer and David R. Trentham pg 2243; DOI: 10.1039/P19910002243 |
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Rearrangement of sulphonium ylides of the 1H-1,4-thiazine type Robert Foster and Thomas L. Gilchrist pg 2249; DOI: 10.1039/P19910002249 |
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Stereoselective protonation and reduction of -sulphinyl enamines. X-Ray molecular structure of N-benzyl-2-(p-tolylsulphinyl)propylamine Robert Kawecki Lech Kozerski Zofia Urba  czyk-Lipkowska and Gabriele Bocelli pg 2255; DOI: 10.1039/P19910002255 |
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Quinoline alkaloids. Part 28. The biosynthesis of furoquinolines and other hemiterpenoids in Ptelea trifoliata Charles F. Neville (the late) Michael F. Grundon Venkataraman N. Ramachandran Geisla Reisch and Johannes Reisch pg 2261; DOI: 10.1039/P19910002261 |
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Perkin communications. Synthesis of silylated ketenimines from a metallated N-phenyl -trimethylsilyl imido thioester Nadia Lage Serge Masson and André Thuillier pg 2269; DOI: 10.1039/P19910002269 |
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Highly enantioselective transformations of ferrocene-containing substrates by bacterial lipases Mahn-Joo Kim Hangjin Cho and Yoon Kyung Choi pg 2270; DOI: 10.1039/P19910002270 |
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Catalysed 1,2-vs. 1,4-addition of 3,4-dichlorocyclobut-3-ene-1,2-dione with unsaturated organosilanes Masatomi Ohno Yoshihiko Yamamoto and Shoji Eguchi pg 2272; DOI: 10.1039/P19910002272 |
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Montmorillonite substrate selectivity in alcohol oxidation Boyapati M. Choudary Santi Shobha Rani Yarlagadda V. Subba Rao and Mannepalli Lakshmi Kantam pg 2274; DOI: 10.1039/P19910002274 |
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Lithiation of (dialkylaminomethyl)trimethylsilanes Kiyotaka Marumo Sumie Inoue Yoshiro Sato and Hideo Kato pg 2275; DOI: 10.1039/P19910002275 |
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Whole cell catalysed kinetic resolution of 6-azabicyclo[3.2.0]hept-3-en-7-one: synthesis of (–)-cispentacin (FR 109615) Chris Evans Ray McCague Stanley M. Roberts Alan G. Sutherland and Richard Wisdom pg 2276; DOI: 10.1039/P19910002276 |
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Spirocyclisation modes in the formation of tricyclospirodienones David Hobbs-Mallyon and Donald A. Whiting pg 2277; DOI: 10.1039/P19910002277 |
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A convenient stereoselective synthesis of D-erythro-C18-sphingosine from galactal Norihiko Hirata Yoshiro Yamagiwa and Tadao Kamikawa pg 2279; DOI: 10.1039/P19910002279 |
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Nectriachrysone, a new metabolite related to fusarubin produced by the fungus Nectria haematococca Denise Parisot Michel Devys and Michel Barbier pg 2280; DOI: 10.1039/P19910002280 |
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Thermal and Lewis acid-promoted novel asymmetric hetero Diels–Alder reactions of a 1-thiabuta-1,3-diene system (thiochalcones) with (–)-dimenthyl fumarate Shinichi Motoki Takao Saito Takayuki Karakasa Hideo Kato Teruki Matsushita and Satoshi Hayashibe pg 2281; DOI: 10.1039/P19910002281 |
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General and convenient route to alkenylidenecyclopropanes: generation of alkenylidenecarbenes from 1,1-dibromocyclopropanes under phase-transfer conditions Kakuzo Isagawa Kazuhiko Mizuno Hikaru Sugita and Yoshio Otsuji pg 2283; DOI: 10.1039/P19910002283 |
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Novel and enantioselective total synthesis of drimane type sesquiterpenes Kozo Shishido Tomoki Omodani and Masayuki Shibuya pg 2285; DOI: 10.1039/P19910002285 |
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Corrigenda Desmond A. Young Annemarie Cronjé Adrienne L. Botes Daneel Ferreira David G. Roux Goverdhan Mehta Duvvuri Subrahmanyam Patrick D. Bailey Robert D. Wilson George R. Brown Shinichi Itsuno Hiromitsu Yanaka Chiharu Hachisuka and Koichi Ito pg 2289; DOI: 10.1039/P19910002289 |
Issue 10
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Front cover pg X037; DOI: 10.1039/P199100FX037 |
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Back cover pg X039; DOI: 10.1039/P199100BX039 |
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Contents pages pg P043; DOI: 10.1039/P199100FP043 |
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Back matter pg P047; DOI: 10.1039/P199100BP047 |
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Stereoselective chain elongation at C-3 of cysteine through 2,3-dihydrothiazoles, without racemization. Preparation of 2-amino-5-hydroxy-3-mercaptoalkanoic acid derivatives André Jeanguenat and Dieter Seebach pg 2291; DOI: 10.1039/P19910002291 |
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Asymmetric Diels–Alder reactions. A route to chiral carbocycles via bicyclic lactams Carl A. Busacca and A. I. Meyers pg 2299; DOI: 10.1039/P19910002299 |
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Purines, pyrimidines and imidazoles. Part 66. New syntheses of some uridine and N-alkoxycarbonyl 5-carboxamides, N-carbamoyl 5-carboxamides and 5-carboxamides Demetrios C. Agathocleous and Gordon Shaw pg 2317; DOI: 10.1039/P19910002317 |
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Studies on the structure and stereochemistry of cytotoxic furanonaphthoquinones from Tabebuia impetiginosa: 5- and 8-hydroxy-2-(1-hydroxyethyl)naphtho[2,3-b]furan-4,9-diones Yoshinori Fujimoto Tadashi Eguchi Chikako Murasaki Yuji Ohashi Katsumi Kakinuma Hidetsugu Takagaki Masayoshi Abe Kazuhiko Inazawa Keiji Yamazaki Nobuo Ikekawa Osamu Yoshikawa and Tetsuro Ikekawa pg 2323; DOI: 10.1039/P19910002323 |
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Synthesis of 20-alkyl-8-thiathevinols, opiate agonists derived from 8-thiathevinone, the cycloadduct of thebaine and 2-oxopropanethial Gordon W. Kirby and Alastair D. Sclare pg 2329; DOI: 10.1039/P19910002329 |
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Regiospecific syntheses of glycocitrine-II and acronycine Ramesh C. Anand and Arun K. Sinha pg 2339; DOI: 10.1039/P19910002339 |
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Further synthetic studies in penicillin C(6)-substitution including the versatile 6-succinimidooxy leaving group Peter H. Milner and Andrew V. Stachulski pg 2343; DOI: 10.1039/P19910002343 |
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Incorporation of the enantiomeric [1-2H]cadaverines into the quinolizidine alkaloid (–)- anagyrine in Anagyris foetida Alison M. Brown David S. Rycroft and David J. Robins pg 2353; DOI: 10.1039/P19910002353 |
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Maleic anhydrides in synthesis. Preparation of furan-2(5H)-one phosphonate derivatives and a new synthesis of pulvinic acids and pulvinone analogues Gerald Pattenden Michael W. Turvill and Alan P. Chorlton pg 2357; DOI: 10.1039/P19910002357 |
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Synthesis of grevillins, novel pyrandione pigments of fungi. Biogenetic interrelationships between grevillins, pulvinic acids, terphenylquinones and xylerythrins Gerald Pattenden Neil A. Pegg and Ronald W. Kenyon pg 2363; DOI: 10.1039/P19910002363 |
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The potential of carbocyclic nucleosides for the treatment of AIDS: synthesis of carbocyclic 6-fluoro-2,3-dideoxythymidine Diane M. Coe David M. Parry Stanley M. Roberts and Richard Storer pg 2373; DOI: 10.1039/P19910002373 |
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New congeners of bistheonellides from Okinawan marine sponges of the genus Theonella Jun'ichi Kobayashi Sachiko Tsukamoto Asako Tanabe Takuma Sasaki and Masami Ishibashi pg 2379; DOI: 10.1039/P19910002379 |
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Microbial oxidation of 7endo-methylbicyclo[3.2.0]hept-2-en-6-one, 7,7-dimethylbicyclo[3.2.0]hept-2-en-6-one and 2exo-bromo-3endo-hydroxy-7,7-dimethylbicyclo[3.2.0]heptan-6-one using Acinetobacter NCIMB 9871 Andrew J. Carnell Stanley M. Roberts Vladimir Sik and Andrew J. Willetts pg 2385; DOI: 10.1039/P19910002385 |
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Photolyses of 1,4-bis(1,1-diarylhept-2-ynyl)benzenes and 1,4-bis(1,1-diarylalkyl)benzenes Min Shi Yoshiki Okamoto and Setsuo Takamuku pg 2391; DOI: 10.1039/P19910002391 |
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Short synthesis of ()-bakuchiol via a geranylindium reagent Shuki Araki and Yasuo Bustugan pg 2395; DOI: 10.1039/P19910002395 |
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Olivanic acid analogues. Part 9. Allylic oxidative functionalisation of substituted azetidinones: synthesis of some 4-acyloxy-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylates John H. Bateson Alison M. Robins and Robert Southgate pg 2399; DOI: 10.1039/P19910002399 |
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Asymmetric synthesis of cis-1,3-diamino-1,3-dideoxycyclitols Karsten Schürrle Barbara Beier and Wolfgang Piepersberg pg 2407; DOI: 10.1039/P19910002407 |
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Heptafluoro-p-tolyl as a protecting group in a synthesis of 3-hydroxy-17a-aza-17a-homopregn-5-en-20-one. A potential inhibitor of androgen biosynthesis John J. Deadman Raymond McCague and Michael Jarman pg 2413; DOI: 10.1039/P19910002413 |
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Regioselectivity in the lithiation of methyl-substituted thiazole- and oxazole-carboxylic acids and carboxamides: general methods for the elaboration of trisubstituted thiazoles and oxazoles Philip Cornwall Colin P. Dell and David W. Knight pg 2417; DOI: 10.1039/P19910002417 |
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Chiral calix[4]arene Seiji Shinkai Takashi Arimura Hirosuke Kawabata Hiroto Murakami and Koji Iwamoto pg 2429; DOI: 10.1039/P19910002429 |
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Stereoselective synthesis of sperabillins and related compounds Shohei Hashiguchi Akira Kawada and Hideaki Natsugari pg 2435; DOI: 10.1039/P19910002435 |
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Convenient procedure for the synthesis of 2-monoalkylated indol-3-ones Tomomi Kawasaki Yoshinori Nonaka Masahiko Kobayashi and Masanori Sakamoto pg 2445; DOI: 10.1039/P19910002445 |
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Prokaryotic triterpenoids. (22R,32R)-34,35-Dinorbacteriohopane-32,33-diols from Acetobacter aceti ssp. xylinum: new bacteriohopane derivatives with shortened side-chain Beate Peiseler and Michel Rohmer pg 2449; DOI: 10.1039/P19910002449 |
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Vinyl cation formation by decomposition of vinyllead(IV) triacetates. Part 2 John T. Pinhey and Martin J. Stoermer pg 2455; DOI: 10.1039/P19910002455 |
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New general approach to the synthesis of yuehchukene analogues. Stereoselective synthesis of 9,10-dihydro-7,9-didemethylyuehchukene. X-Ray molecular structure of 6-(indol-3-yl)-7-methyl-5-phenylsulphonyl-5,6,6a,7,8,9,10,10a-octahydroindeno[2,1-b]indole Kin-Fai Cheng Kwok-Pong Chan and Ting-Fong Lai pg 2461; DOI: 10.1039/P19910002461 |
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Synthesis from (–)-aristeromycin and X-ray structure of (–)-carbovir Anne M. Exall Martin F. Jones Chi-Leung Mo Peter L. Myers Ian L. Paternoster Hardev Singh Richard Storer Gordon G. Weingarten Christopher Williamson Alastair C. Brodie John Cook David E. Lake Clive A. Meerholz Peter J. Turnbull and Rona M. Highcock pg 2467; DOI: 10.1039/P19910002467 |
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Total synthesis of (–)-carbovir Martin F. Jones Peter L. Myers Colin A. Robertson Richard Storer and Christopher Williamson pg 2479; DOI: 10.1039/P19910002479 |
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Synthesis and receptor binding affinity of 7- and 17-substituted 2- and 4-chloroestradiol derivatives Hasrat Ali and Johan E. van Lier pg 2485; DOI: 10.1039/P19910002485 |
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Novel one-pot synthesis of 4-trifluoromethyl-2,4-dienamides Yanchang Shen and Yuejun Xiang pg 2493; DOI: 10.1039/P19910002493 |
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Synthesis of (4S,5R)-(–)-4-methyl-5-phenyloxazolidine-2-selone: a chiral auxiliary reagent capable of detecting the enantiomers of (R,S)-lipoic acid by 77Se nuclear magnetic resonance spectroscopy Louis A. Silks III Jie Pang Jerome D. Odom and R. Bruce Dunlap pg 2495; DOI: 10.1039/P19910002495 |
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Synthesis of a novel tetracyclic acridine. A sulphoxide-based route to the 1,2,3,4-tetrahydrobenzo[b][1,8]phenanthroline ring system Michael G. Kennedy Christopher J. Moody Charles W. Rees and Robert Thomas pg 2499; DOI: 10.1039/P19910002499 |
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Use of the two enantiometers of 7,7-dimethylbicyclo[3.2.0]hept-2-en-6-one to form complementary optically active synthons in a convergent synthesis of leukotriene-B4 Ian C. Cotterill Rabih Jaouhari György Dorman Stanley M. Roberts Feodor Scheinmann and Basil J. Wakefield pg 2505; DOI: 10.1039/P19910002505 |
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Oxymercuriation–demercuriation of the methyl esters of communic acids. X-Ray molecular structure of methyl (8R,12R)-8,12-epoxyisopimar-15-en-19-oate Alejandro F. Barrero Juan F. Sánchez Joaquín Altarejos Aurea Perales and Rosario Torres pg 2513; DOI: 10.1039/P19910002513 |
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Synthesis of bi- and tri-cyclic tetrazepinones Bertrand J. Jean-Claude and George Just pg 2525; DOI: 10.1039/P19910002525 |
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RhI-catalysed formation of two conformational diastereoisomers due to a cis-cyclohexane-1,2-diol moiety. X-Ray molecular structure of two stereoisomers of 4-isopropenyl-7,9-dioxabicyclo[4.3.0]nonane-8-spirocyclohexan-3-yl p-bromobenzoate Kiyoshi Sakai Xiao-Ming Wu Tadashi Hata Nobuhiro Marubayashi and Kazuhisa Funakoshi pg 2531; DOI: 10.1039/P19910002531 |
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Synthesis of isotopically labelled 3-amino-2-phenylpropionic acid and its role as a precursor in the biosynthesis of tenellin and tropic acid Russell J. Cox and David O'Hagan pg 2537; DOI: 10.1039/P19910002537 |
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Photochemical reactions of N-acyldithiocarbamates and N-acylthiocarbamates Masami Sakamoto Bshoji Watanbe Tsutomu Fujita Hiromu Aoyama and Yoshimori Omote pg 2541; DOI: 10.1039/P19910002541 |
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Mycinamicin biosynthesis: isolation and structural elucidation of mycinonic acids, proposed intermediates for formation of mycinamicins. X-Ray molecular structure of p-bromophenacyl 5-hydroxy-4-methylhept-2-enoate Kenji Kinoshita Satoshi Takenaka and Mitsuo Hayashi pg 2547; DOI: 10.1039/P19910002547 |
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Ferrocene derivatives. Part 26. The photolysis of halogenoferrocenes in aromatic solvents Christopher Imrie Derek C. Nonhebel and Peter L. Pauson pg 2555; DOI: 10.1039/P19910002555 |
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The preparation of gibberellin hapten–protein conjugates. Part 2. Conjugates and gibberellin affinity probes formed via the addition of ,-dithiols to C-16-enes Michael H. Beale pg 2559; DOI: 10.1039/P19910002559 |
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Pseudoguaianolides from intramolecular cycloadditions of aryl diazoketones: synthesis of ()-confertin and an approach to the synthesis of ()-damsin Michael Kennedy and M. Anthony McKervey pg 2565; DOI: 10.1039/P19910002565 |
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Ring-size and substituent effects in intramolecular reactions of alkylidenecarbenes (carbenoids) Mark S. Baird Anthony G. W. Baxter Alireza Hoorfar and Ian Jefferies pg 2575; DOI: 10.1039/P19910002575 |
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A mass spectral analysis of some cucurbitacins isolated from Fevillea cordifolia Lyndon B. N. Johnson William J. Griffiths Earle V. Roberts Lister K. P. Lam John C. Vederas Colin J. Reid and James A. Ballantine pg 2583; DOI: 10.1039/P19910002583 |
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Phase transfer catalysis without solvent: selective mono- or di-alkylation of malononitrile Enrique Díez-Barra Antonio de la Hoz Andrés Moreno and Prado Sánchez-Verdú pg 2589; DOI: 10.1039/P19910002589 |
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Phase transfer catalysis without solvent. Synthesis of cycloalkane-1,1-dicarbonitriles and alkanetetracarbonitriles Enrique Díez-Barra Antonio de la Hoz Andrés Moreno and Prado Sánchez-Verdú pg 2593; DOI: 10.1039/P19910002593 |
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Perkin communications. Improved synthesis of secondary hydroperoxides from alcohols Dee Ann Casteel and Kyeong-Eun Jung pg 2597; DOI: 10.1039/P19910002597 |
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Carbonyl allylation by vinyl epoxides with SnCl2–TBA or SnCl2–Lil: application to the diastereoselective synthesis of 1,3-diols Yoshiro Masuyama Jun Nakata and Yasuhiko Kurusu pg 2598; DOI: 10.1039/P19910002598 |
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The regiospecific C-4 lithiation of 2-(tert-butyldimethylsilyl)-3-furoic acid Shuyuan Yu and Brian A. Keay pg 2600; DOI: 10.1039/P19910002600 |
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1,3-Dipolar cycloadditions of alkynyl Fischer carbene complexes with nitrones Kin Shing Chan pg 2602; DOI: 10.1039/P19910002602 |
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Synthesis of ()-2,3-didehydro-2,3-dideoxy nucleosides via a modified Prins reaction and palladium(0) catalysed coupling Elizabeth A. Saville-Stones Stephen D. Lindell Neil S. Jennings John C. Head and Mark J. Ford pg 2603; DOI: 10.1039/P19910002603 |
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Enzymatic resolution of cis- and trans-4-hydroxycyclopent-2-enylmethanol derivatives and a novel preparation of carbocyclic 2,3-dideoxydidehydronucleosides and aristeromycin Stanley M. Roberts and Karoline A. Shoberu pg 2605; DOI: 10.1039/P19910002605 |
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Asymmetric hydride reduction using a chiral aluminium reagent modified by a crowned 2,2-dihydroxy-1,1-binaphthyl Koji Yamamoto Koji Ueno and Koichiro Naemura pg 2607; DOI: 10.1039/P19910002607 |
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Keramamide A, a novel peptide from the Okinawan marine sponge Theonella sp. Jun'ichi Kobayashi Masaaki Sato Masami Ishibashi Hideyuki Shigemori Takemichi Nakamura and Yasushi Ohizumi pg 2609; DOI: 10.1039/P19910002609 |
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Thiol-induced conversion of (Z)-4-o-acetoxybenzylidene-2-phenyl-4,5-dihydrooxazol-5-ones into 3-benzoylaminocoumarins Arya K. Mukerjee Kiran Joseph and Laxmi Rao pg 2611; DOI: 10.1039/P19910002611 |
Issue 11
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Front cover pg X041; DOI: 10.1039/P199100FX041 |
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Back cover pg X043; DOI: 10.1039/P199100BX043 |
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Contents pages pg P049; DOI: 10.1039/P199100FP049 |
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Nucleophilic additions to and reductiosn of 5-formyl-and 5-acyl-2-isoxazolines (4,5-dihydeoisoxazoles): a stereoselective route to ,-dihydroxy ketones Dennis P. Curran and Jaincun Zhang pg 2613; DOI: 10.1039/P19910002613 |
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Stereoselective synthesis of 1,2-diols by the cycloadditive strategy: total synthesis of ()-exo-brevicomin and ()-and (–)-pestalotin Jiancun Zhang and Dennis P. Curran pg 2627; DOI: 10.1039/P19910002627 |
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Chiral synthesis via organoboranes. Part 32. Synthesis of B-(cycloalk-2-enyl)diisopinocampheylboranes of high enantiomeric purity via the asymmetric hydroboration of cycloalka-1,3-dienes. successful asymmetric allylborations of aldehydes with B-(cycloalk-2-enyl)diisopinocampheylboranes Herbert C. Brown Krishna S. Bhat and Prabhakar K. Jadhav pg 2633; DOI: 10.1039/P19910002633 |
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Acetylcyclopropane as a five–carbon building block in the synthesis of some acetogenin insect pheromones Alexander M. Moiseenkov Boris A. Czeskis Natalya M. Ivanova and Oleg M. Nefedov pg 2639; DOI: 10.1039/P19910002639 |
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Chirality transfer in phase-transfer processes: preparation of homochiral substituted cyclopentenones Helmut Grebe Astrid Lange Hartmut Riechers Klaus Kieslich Wolfgang Viergutz Peter Washausen and Ekkehard Winterfeldt pg 2651; DOI: 10.1039/P19910002651 |
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Mild regiospecific rearrangement of ,-unsaturated ketones into ring expanded annulated tetrazoles Philip Magnus and G. Mark Taylor pg 2657; DOI: 10.1039/P19910002657 |
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Studies on the synthesis of ginkgolides. Rapid construction of the spiro[4.4]nonane A and B rings Mark R. DeLuca and Philip Magnus pg 2661; DOI: 10.1039/P19910002661 |
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Fructose 1,6-diphosphate aldolase-catalysed stereoselective C–C bond formation Kevin K.-C. Liu Richard L. Pederson and Chi-Huey Wong pg 2669; DOI: 10.1039/P19910002669 |
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A versatile and convenient method for the syntheses of pyrimido[4,5-b][1,4]thiazine and -thiazepine ring systems Magoichi Sako Reiko Totani Minako Konohara Kosaku Hirota and Yoshifumi Maki pg 2675; DOI: 10.1039/P19910002675 |
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Partial synthesis of some diterpenoids with potential antitumour activity Mohammed Shaiq Ali Mark K. Baynham James R. Hanson and Peter B. Hitchcock pg 2679; DOI: 10.1039/P19910002679 |
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On the preparation and rearrangement of some vinylic sulphoxides Quezia B. Cass Albert A. Jaxa-Chamiec Ellen K. Kunec and Peter G. Sammes pg 2683; DOI: 10.1039/P19910002683 |
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Absolute configuration of epi-rhododendrin and (–)-rhododendrol [=(–)-betuligenol] and X-ray crystal and molecular structure of rhododendrin [= betuloside], a hepatoprotective constituent of Taxus baccata Virinder S. Parmar Anand Vardhan Poonam Taneja Rita Sinha Gyanendra K. Patnaik Subhash C. Tripathi Per M. Boll and Sine Larsen pg 2687; DOI: 10.1039/P19910002687 |
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Non-oxidative conversion of ketone carbonyls into carboxy carbonyls. Comparison of 2-acylthiazoles and 2-acylimidazoles in the aldol condensation and the stereospecific cleavage of an example of the latter to a -hydroxy ester via the azolium salt D. Huw Davies Jonathan Hall and Edward H. Smith pg 2691; DOI: 10.1039/P19910002691 |
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Synthesis of 6-(substituted methylene) carbapenem derivatives from 6-aminopenicillanic acid Steven Coulton and Irene François pg 2699; DOI: 10.1039/P19910002699 |
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Arsenic-containing ribosides from the brown alga Sargassum lacerifolium: X-ray molecular structure of 2-amino-3-[5-deoxy-5-(dimethylarsinoyl)ribosyloxy]propane-1-sulphonic acid Kevin A. Francesconi John S. Edmonds Robert V. Stick Brian W. Skelton and Allan H. White pg 2707; DOI: 10.1039/P19910002707 |
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Asymmetric synthesis using chiral piperazines. Part 3. Enantioselective addition of dialkylzincs to aryl aldehydes catalysed by chiral piperazines Seiji Niwa and Kenso Soai pg 2717; DOI: 10.1039/P19910002717 |
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Photoinduced molecular transformations. Part 126. Photo-double ring contraction of 4a-homo-5-cholest-3-en-1-one, a steroidal ,-unsaturated cyclic ketone, involving photochemical 1,3-acyl migration Hiroshi Suginome Motohiro Takemura Noriaki Shimoyama and Kazuhiko Orito pg 2721; DOI: 10.1039/P19910002721 |
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The synthesis and absolute configuration of the novel ichthyotoxic diacyiglycerols, umbraculumin A and umbraculumin C Edna Faria De Medeiros John M. Herbert and Richard J. K. Taylor pg 2725; DOI: 10.1039/P19910002725 |
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Enantioselective reaction of diethylzinc with arenecarbaldehydes in the presence of ephedrine derivatives Penny A. Chaloner Eugenia Langadianou and S. A. Renuka Perera pg 2731; DOI: 10.1039/P19910002731 |
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Novel neurotrophic isocuparane-type sesquiterpene dimers, mastigophorenes A, B, C and D, isolated from the liverwort Mastigophora diclados Yoshiyasu Fukuyama and Yoshinori Asakawa pg 2737; DOI: 10.1039/P19910002737 |
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Naphthopyranquinones. Confirmation of the structures of the ventiloquinones E, G and J by synthesis Charles B. de Koning Robin G. F. Giles and Ivan R. Green pg 2743; DOI: 10.1039/P19910002743 |
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Analgesic dipeptide derivatives. Part 8. 3-Amino-2-hydroxy-4-[2-(o-nitrophenylthio)indol-3-yl]butanoic acid [AH(Nps)IBA]-containing dipeptide analogues of the analgesic compound H-Trp(Nps)-Lys-OMe Rosario Herranz Soledad Vinuesa Concepción Pérez M. Teresa García-López María L. De Ceballos and Joaquín del Río pg 2749; DOI: 10.1039/P19910002749 |
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Reactivity of nitro- and nitroso-arenes with vinyl grignard reagents: synthesis of 2-(trimethylsilyl)indoles Giuseppe Bartoli Marcella Bosco Renato Dalpozzo Gianni Palmieri and Enrico Marcantoni pg 2757; DOI: 10.1039/P19910002757 |
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Conformational and steric modifications of the pyran ring of the potassium-channel activator cromakalim Derek R. Buckle Drake S. Eggleston Catherine S. V. Houge-Frydrych Ivan L. Pinto Simon A. Readshaw David G. Smith and Richard A. B. Webster pg 2763; DOI: 10.1039/P19910002763 |
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Synthetic approaches to the alkaloids of the ancistrocladaceae. Part 3. The total synthesis of (–)-ancistrocladinine: control of the diastereoisomer excess in the synthesis of axially chiral biaryls Mark A. Rizzacasa and Melvyn V. Sargent pg 2773; DOI: 10.1039/P19910002773 |
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Synthesis of larreantin, a cytotoxic naphthoquinonoid sesquilignan from Larrea tridentata Mark F. Comber and Melvyn V. Sargent pg 2783; DOI: 10.1039/P19910002783 |
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Reactivity of aryl and heteroaryl azides with vinylsilane and alkynylsilane. Formation of C-silylated 1,2,3-triazolines and 1,2,3-triazoles Paolo Zanirato pg 2789; DOI: 10.1039/P19910002789 |
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A free radical method for attaching an oxygen-containing ring to either face of a bicyclic structure Derrick L. J. Clive and Antonio C. Joussef pg 2797; DOI: 10.1039/P19910002797 |
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Additional reactions of sugar oximes, nitrite oxides and hydroximolactones Masataka Yokoyama Keiko Sujino Masakazu Irie Norimasa Yamazaki Takuya Hiyama Naoyuki Yamada and Hideo Togo pg 2801; DOI: 10.1039/P19910002801 |
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The reaction of tert-butyldiphenylsilylcuprates with allenes Asunción Barbaro Purificación Cuadrado Ana Ma. González Francisco J. Pulido and Ian Fleming pg 2811; DOI: 10.1039/P19910002811 |
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Anodic methoxylation of 2,5-dimethyl- and tetramethyl-thiophene. Formation and transformation of 2,5-dimethoxy adducts Kunihisa Yoshida Kazusada Takeda and Takayuki Fueno pg 2817; DOI: 10.1039/P19910002817 |
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Synthesis of 1H-imidazoles by the simple ring transformation of 5-acylaminouracils and 5-acylaminopyrimidin-4(3H)-ones Izumi Matsuura Taisei Ueda Nobutoshi Murakami Shin-ichi Nagai and Jinsaku Sakakibara pg 2821; DOI: 10.1039/P19910002821 |
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Study on the synthesis of brassinolide and related compounds. Part 15. Formal synthesis of brassinolide via stereoselective sulphenate–sulphoxide transformation Wei-Shan Zhou and Zheng-Wu Shen pg 2827; DOI: 10.1039/P19910002827 |
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Tautomerism in ketomethylquinolines. Part 2. Further results on 2-ketomethylquinolines John V. Greenhill Hossein Loghmani-Khouzani and Derek J. Maitland pg 2831; DOI: 10.1039/P19910002831 |
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Stereochemical studies of enzymatic transglycosylation using Sulfolobus solfataricus Antonio Trincone Barbara Nicolaus Licia Lama and Agata Gambacorta pg 2841; DOI: 10.1039/P19910002841 |
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Investigation into the reaction between 1,5-epidithio steroids and electrophilic halogenating reagents: aspects of the chemistry of thiosulphenyl chlorides and thiiranium ions Derek H. R. Barton Robert H. Hesse Stephen D. Lindell and Maurice M. Pechet pg 2845; DOI: 10.1039/P19910002845 |
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Synthesis of new thio corticosteroids including 1,9-epidithio-11,17,21-trihydroxy-16-methylpregn-4-ene-3,20-dione Derek H. R. Barton Robert H. Hasse Stephen D. Lindell and Maurice M. Pechet pg 2855; DOI: 10.1039/P19910002855 |
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Cycloaddition of phenyl vinyl sulphone to 3-methoxy-16-methylestra-1,3,5(10),14,16-pentaen-17-yl acetate: synthesis of 14-functional ised 19-norpregnane derivatives James R. Bull and Karl Bischofberger pg 2859; DOI: 10.1039/P19910002859 |
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Stereochemical studies on some vic-bisphosphonates G. Michael Blackburn Alan R. Forster Mao-Jun Guo and Graham E. Taylor pg 2867; DOI: 10.1039/P19910002867 |
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The vinylogue of bis-4,5-methylenedithiotetrathiafulvalene: a new electron donor Thomas Kruse Hansen M. V. Lakshmikantham Michel P. Cava and Jan Becher pg 2873; DOI: 10.1039/P19910002873 |
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Studies on pyrazines. Part 22. Lewis acid-mediated cyanation of pyrazine N-oxides with trimethylsilyl cyanide: new route to 2-substituted 3-cyanopyrazines Nobuhiro Sato Yuji Shimomura Yoshie Ohwaki and Ryo Takeuchi pg 2877; DOI: 10.1039/P19910002877 |
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Perkin communications. Ready alcoholysis of the cycloadducts (urazole) of 4-phenyl-1,2,4-triazole-3,5-dione by solvent-assisted backbone participation Kazuyoshi Seguchi and Satoko Tanaka pg 2883; DOI: 10.1039/P19910002883 |
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Synthesis of potential inhibitors of squalene epoxidase John Mann and Garrick P. Smith pg 2884; DOI: 10.1039/P19910002884 |
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Preparation of 4-alkylprolines by intramolecular radical cyclization of chiral serine derivatives François Soucy Dominik Wernic and Pierre Beaulieu pg 2885; DOI: 10.1039/P19910002885 |
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The first solvent-directed regioselective ketal reduction of unsymmetrical glycols Roger Hunter and Birgit Bartels pg 2887; DOI: 10.1039/P19910002887 |
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1, 3-Dipolar cycloaddition between ethyl trifluoroacetoacetate and N-(benzylidene)methylamine N-oxide Jean-Pierre Bégué Danièle Bonnet-Delpon and Thierry Lequeux pg 2888; DOI: 10.1039/P19910002888 |
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Easy and general synthesis of unsymmetrical -halogeno ketones José Barluenga Luján Llavona Miguel Yus and José M. Concellón pg 2890; DOI: 10.1039/P19910002890 |
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Lipase-catalysed asymmetric and enantioselective esterification of spiro[3.3]heptanes in organic solvents Koichiro Naemura and Atsushi Furutani pg 2891; DOI: 10.1039/P19910002891 |
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Selective coupling reactions of alkynyl(phenyl)iodonium tosylates with alkynyl, copper reagents Tsugio Kitamura Toshimasa Tanaka Hiroshi Taniguchi and Peter J. Stang pg 2892; DOI: 10.1039/P19910002892 |
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A radical cyclization approach to 1, 25-dihydroxyvitamin D3 Duncan Batty and David Crich pg 2894; DOI: 10.1039/P19910002894 |
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Corrigenda S. Gupta D. W. Roberts J. A. A. Renwick K. Luk and S. A. Readshaw pg 2897; DOI: 10.1039/P19910002897 |
Issue 12
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Front cover pg X045; DOI: 10.1039/P199100FX045 |
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Back cover pg X047; DOI: 10.1039/P199100BX047 |
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Contents pages pg P053; DOI: 10.1039/P199100FP053 |
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Back matter pg P059; DOI: 10.1039/P199100BP059 |
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Synthesis of - and -branched ethers from alcohols by reaction of acetals with grignard reagents: synthesis of isopropyl and isobutyl ethers of (1S*,2R*S*,4R*)-6-methylenebicyclo[2.2.2]octan-2-ol Timothy M. Willson Jack Amburgey and Scott E. Denmark pg 2899; DOI: 10.1039/P19910002899 |
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Biocatalysis as the strategy of choice in the exhaustive enantiomerically controlled synthesis of conduritols Tomas Hudlicky Hector Luna Horacio F. Olivo Catherine Andersen Thomas Nugent and John D. Price pg 2907; DOI: 10.1039/P19910002907 |
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Triterpenoid total synthesis. Part 2. Synthesis of glycinoeclepin A, a potent hatching stimulus for the soybean cyst nematode Hidenori Watanabe and Kenji Mori pg 2919; DOI: 10.1039/P19910002919 |
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Formation of radical cation and dication of 1,3,4,6-tetrakis(isopropylthio)242-thieno[3,4-c]thiophene and their reactions with nucleophiles Akira Tsubouchi Chitoshi Kitamura Noboru Matsumura and Hiroo Inoue pg 2935; DOI: 10.1039/P19910002935 |
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Synthesis and electrochemical properties of the naturally occurring free radical scavenger carazostatin P. Mark Jackson Christopher J. Moody and Roger J. Mortimer pg 2941; DOI: 10.1039/P19910002941 |
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Organic heterocyclothiazenes. Part 17. Preparation, acylation, and metallation of 1,3,5,2,4-trithiadiazepine Charles W. Rees and John R. J. Surtees pg 2945; DOI: 10.1039/P19910002945 |
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Synthesis of (6S,6aS,7R,10S,10aR)-6-(indol-3-yl)-7,11,11-trimethyl-5,6,6a,7,8,9,10,10a-octahydro-7,10-methanoindeno[2,1-b]indole and its enantiomer: absolute configuration of active yuehchukene Kin-Fai Cheng Kwok-Pong Chan Yun-Cheung Kong and Duen-Duen Ho pg 2955; DOI: 10.1039/P19910002955 |
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Synthesis of novel N- and S-mustards as potential pro-drugs activated by bioreductive processes John Mann and Leroy A. Shervington pg 2961; DOI: 10.1039/P19910002961 |
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Novel synthesis of conjugated bisperfluoroalkyl enynes Yanchang Shen Yuejun Xiang and Weiming Qiu pg 2965; DOI: 10.1039/P19910002965 |
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Novel route to some biologically important compounds starting with a common chiral, bicyclic, fused lactone: enantioselective synthesis of (–)-boschnialactone and two antithrombotics Yoshitsugu Arai Saburo Kawanami and Toru Koizumi pg 2969; DOI: 10.1039/P19910002969 |
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Stereochemistry of the methyne–methylene conversion in the biogeneration of (S)--decanolide and (S)--dodecanolide from (13RS)-13-hydroxyoctadeca-9Z,11E-dienoic and (10RS)-10-hydroxyoctadec-8E-enoic acid Giovanni Fronza Claudio Fuganti Piero Grasselli Andrea Mele Gianna Allegrone Massimo Barbeni and Antonella Pisciotta pg 2977; DOI: 10.1039/P19910002977 |
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Analogues of acylonucleoside diphosphates. The synthesis of a series of diphosphonate derivatives of pyrimidines and purines Ann Parkin pg 2983; DOI: 10.1039/P19910002983 |
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Heterocyclic compounds with bridgehead nitrogen atoms. Part 11. Formation of azocino[2,1,8-cd]pyrrolizines in the reactions of indolizines with dimethyl acetylenedicarboxylate Alexander J. Blake James W. Dick (the late) Derek Leaver and Paul Strachan pg 2991; DOI: 10.1039/P19910002991 |
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Hydrolysis of gibberellin 7-methyl esters: anchimeric assistance by a 15-alcohol Simon J. Castellaro Jake MacMillan and Christine L. Willis pg 2999; DOI: 10.1039/P19910002999 |
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Expedient synthesis of polyhydroxyisoflavones Kristiina Wähälä and Tapio A. Hase pg 3005; DOI: 10.1039/P19910003005 |
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S-2-hydroxyacylglutathione-derivatives: enzymatic preparation, purification and characterisation James D. Clelland and Paul J. Thornalley pg 3009; DOI: 10.1039/P19910003009 |
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(3S)-3-hydroxyquinidine, the major biotransformation product of quinidine. Synthesis and conformational studies. X-Ray molecular structure of (3S)-3-hydroxyquinidine methanesuiphonate F. Ivy Carroll Philip Abraham Kevan Gaetano S. Wayne Mascarella Ronald A. Wohl Joan Lind and Karl Petzoldt pg 3017; DOI: 10.1039/P19910003017 |
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Chiral synthesis of the key intermediate for 1-methylcarbapenem antibiotics starting from (–)-carvone Toshio Honda Hiroyuki Ishizone Wakako Mori Koichi Naito and Yukio Suzuki pg 3027; DOI: 10.1039/P19910003027 |
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On the synthesis of a phenanthrene-2,7-quinone Frank R. Hewgill Riskiono Slamet and Jeffery M. Stewart pg 3033; DOI: 10.1039/P19910003033 |
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Reaction of thioketones with carbonyl oxides and 3,3-dimethyl-1,2-dioxirane. [3 + 2] Cycloaddition vs. oxygen atom transfer Toshihiko Tabuchi Masatomo Nojima and Shigekazu Kusabayashi pg 3043; DOI: 10.1039/P19910003043 |
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Rapid syntheses of some indole alkaloids of the calabar bean Stephen Horne Nicholas Taylor Scott Collins and Russell Rodrigo pg 3047; DOI: 10.1039/P19910003047 |
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Synthesis and characterisation of some 1,4,8,11,15,18,22,25-octa(alkoxymethyl)phthalocyanines; a new series of discotic liquid crystals Andrew N. Cammidge Michael J. Cook Kenneth J. Harrison and Neil B. McKeown pg 3053; DOI: 10.1039/P19910003053 |
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ortho-Regioselective arylation of phenols: new general synthesis of ortho-hydroxyarylhydroquinone bis(methyl ethers) Giovanni Sartori Raimondo Maggi Franca Bigi and Giuseppe Casnati pg 3059; DOI: 10.1039/P19910003059 |
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Synthesis of O-vinyl oximes and derived penicillins using organoselenium intermediates Andrew V. Stachulski pg 3065; DOI: 10.1039/P19910003065 |
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Enzyme-catalysed hydrolyses of some meso-diesters Ian C. Cotterill Philip B. Cox Alex F. Drake Darren M. Le Grand Edward J. Hutchinson Regine Latouche Roger B. Pettman Robert J. Pryce Stanley M. Roberts George Ryback Vladimir Sik and Julian O. Williams pg 3071; DOI: 10.1039/P19910003071 |
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Synthesis of bicyclic pyridone and dihydropyridone analogues of -lactam antibiotics Nigel K. Capps Gareth M. Davies David Loakes Richard W. McCabe and Douglas W. Young pg 3077; DOI: 10.1039/P19910003077 |
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Alternative route to carbacyclin using lipase-catalysed enantioselective hydrolysis of methyl 8-acetoxybicyclo[4.3.0]non-3-ene-7-carboxylate Z.-F. Xie H. Suemune K. Funakoshi T. Oishi H. Akita and K. Sakai pg 3087; DOI: 10.1039/P19910003087 |
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Preparation of 2-halogeno S-phenyl thioesters from 2-phenylsulphony -2-phenylthiooxiranes. Crystal structures of 2-phenylsulphonyloxiranes Cheryl T. Hewkin Richard F. W. Jackson and William Clegg pg 3091; DOI: 10.1039/P19910003091 |
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A new method for the synthesis of -bromoacyl silanes via ring-opening of 2-phenylsulphonyl-2-trimethylsilyloxiranes Cheryl T. Hewkin and Richard F. W. Jackson pg 3103; DOI: 10.1039/P19910003103 |
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The effect of the ring size of the dithiolato leaving group on the orientation of -elimination in the nickel-catalysed alkenation of cyclic dithioacetals with Me2SiCH2MgCl Ken-Tsung Wong Zhi-Jie Ni and Tien-Yau Luh pg 3113; DOI: 10.1039/P19910003113 |
Studies on N-deprotection of  (CH2NH) pseudodipeptide methyl esters. Cyclization to 2-ketopiperazinesAna Bravo Isabel Gómez-Monterrey Rosario González-Muñiz and M. Teresa García-López pg 3117; DOI: 10.1039/P19910003117 |
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Correlation between the structure and reactivity of the selenide dihalide of the new reducing reagent NaBH4–R2SeX2 on the highly selective reduction of amides. X-Ray molecular structure of bis-(2-chloroethyl)selenium dichloride Sadatoshi Akabori Yoshinori Takanohashi Sachiko Aoki and Sadao Sato pg 3121; DOI: 10.1039/P19910003121 |
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Reactions of carbonyl compounds with benzyl chloromethyl ether of diiodomethane in the presence of samarium(II) iodide or metallic samarium. New routes to 1,2-diols, iodohydrins and cyclopropanols Tsuneo Imamoto Toshihiko Hatajima Nobuyuki Takiyama Toshiaki Takeyama Yasuo Kamiya and Takeshi Yoshizawa pg 3127; DOI: 10.1039/P19910003127 |
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Chemically modified calix[4]arenes. Regioselective synthesis of 1,3-(distal) derivatives and related compounds. X-Ray crystal structure of a diphenol-dinitrile Elizabeth M. Collins M. Anthony McKervey Evelyn Madigan Mary B. Moran Michael Owens George Ferguson and Stephen J. Harris pg 3137; DOI: 10.1039/P19910003137 |
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Identification and isotopic labelling of the diastereotopic methyl groups of the prenyl-derived 2-hydroxyisopropyl residues of natural products: the rotenoid dalpanol Leslie Crombie Geoffrey W. Kilbee Frank Moffatt Geoffrey Proudfoot and Donald A. Whiting pg 3143; DOI: 10.1039/P19910003143 |
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Asymmetric construction of ,–disubstituted cyclobutanones–enantioselective total synthesis of (–)-frontalin Hideo Nemoto Toshie Yamada Hiroki Ishibashi and Keiichiro Fukumoto pg 3149; DOI: 10.1039/P19910003149 |
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Synthesis of 6-alkoxy-3-aryl-6-trimethylsilyloxy-5,6-dihydro-4H-1,2-oxazines and their acid-catalysed hydrolysis leading to 3-aryl-5,6-dihydro-4H-1,2-oxazin-6-ones and/or 4-aryl-4-(hydroxyimino)butyric acid esters Shigeo Tanimoto Hideshi Matsumoto Makoto Hojo and Akio Toshimitsu pg 3153; DOI: 10.1039/P19910003153 |
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Synthesis and study of 10-(4-methoxybenzylidene)-9(10H)-phenanthrone, a stable ortho-quinone methanide Demetrios N. Nicolaides Spyros G. Adamopoulos Evangelia J. Hatzigrigoriou and Konstantinos E. Litinas pg 3159; DOI: 10.1039/P19910003159 |
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Synthesis of 11-amino-substituted-9-methoxy-5-methyl-6H-pyrido[4,3-b]-carbazoles Isbelle Praly-Deprez Christian Rivalle Christiane Huel Jean Belehradek Claude Paoletti and Emile Bisagni pg 3165; DOI: 10.1039/P19910003165 |
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Synthesis of 11-amino-substituted-5,6-dimethyl-5H-pyrido[3,4:4,5]pyrrolo-[2,3-g]isoquinolines as new ellipticine analogues Isabelle Praly-Deprez Christian Rivalle Jean Belehradek Christians Huel and Emile Bisagni pg 3173; DOI: 10.1039/P19910003173 |
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Chemistry of ethyl 2-{[t-butoxycarbonyl(methyl)amino]methyl}-3-hydroxy-3-phenyl (or 3-vinyl)propionate: mechanistic considerations in the formation of tetrahydro-1,3-oxazin-2-ones Takushi Kurihara Yoshitaka Matsubara Shinya Harusawa and Ryuji Yoneda pg 3177; DOI: 10.1039/P19910003177 |
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New congeners of swinholides from the okinawan marine sponge Theonella sp. Sachiko Tsukamoto Masami Ishibashi Takuma Sasaki and Jun'Ichi Kobayashi pg 3185; DOI: 10.1039/P19910003185 |
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Influence of electron donating aromatic substituents on the stereochemistry of the products in cycloalkylations of 2-(2-arylethyl)-3,3-dimethyl-1-methylenecyclohexane and related substrates: mechanisms of aromatic cycloalkylations Sukumar Ghosh Bimal K. Banik and Usha Ranjan Ghatak pg 3189; DOI: 10.1039/P19910003189 |
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An expeditious synthesis of 1,2,3,4-tetrahydro-1,1-dimethylphenanthrenes Sukumar Ghosh Bimal K. Banik and Usha Ranjan Ghatak pg 3195; DOI: 10.1039/P19910003195 |
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Zwitterion-accelerated [3,3]-sigmatropic rearrangements and [2,3]sigmatropic rearrangements of sulphoxides and amine oxides Jih Ru Hwu and Denise A. Anderson pg 3199; DOI: 10.1039/P19910003199 |
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Enantioselective synthesis of cyclohexene nitro aldehydes via Diels–Alder reactions with sugar nitroolefins José A. Serrano María Ch. Moreno Emilio Román Odón Arjona Joaquín Plumet and Jesús Jiménez pg 3207; DOI: 10.1039/P19910003207 |
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Aspartate racemization in synthetic peptides. Part 2. Tendency to racemization of aminosuccinyl residue István Schön Tamás Szirtes Attila Rill Gábor Balogh Zsolt Vadász János Sepr  di István Teplán Naoyoshi Chino Kumiko Yoshizawa Kumogaye and Shumpei Sakakibara pg 3213; DOI: 10.1039/P19910003213 |
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Intramolecular ene reactions of thioaldehydes giving -mercapto lactones Samuel S.-M Choi and Gordon W. Kirby pg 3225; DOI: 10.1039/P19910003225 |
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Partial synthesis of 20-norgibberellin A12 and structural elucidation of a metabolite detected in oilseed rape, Brassica napus Angi Chen Jake MacMillan and Christine L. Willis pg 3235; DOI: 10.1039/P19910003235 |
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Triazene drug metabolites. Part 11. Synthesis of S-cysteinyl and related derivatives of N-hydroxymethyltriazenes Jim Iley Rui Moreira and Eduarda Rosa pg 3241; DOI: 10.1039/P19910003241 |
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3-Hydroxypyrroles and 1H- pyrrol-3(2H)-ones. Part 10. Alkylation of pyrrolones under basic conditions: regiospecific formation of 3-alkoxypyrroles Gordon A. Hunter Hamish McNab Lilian C. Monahan and Alexander J. Blake pg 3245; DOI: 10.1039/P19910003245 |
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Enantiodivergent synthesis of steroidal side chains. Stereocontrol via SN1 vs. SN2 type cleavage of acetal templates Yoshinori Yamamoto Hidenori Abe Shinji Nishii and Jun-Ichi Yamada pg 3253; DOI: 10.1039/P19910003253 |
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Photochromic heterocyclic fulgides. Part 5. Rearrangement reactions of (E)--1,2,5-trimethyl-3-pyrrylethylidene(isopropylidene)succinic anhydride end related compounds Stuart A. Harris Harry G. Heller and Stephen N. Oliver pg 3259; DOI: 10.1039/P19910003259 |
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Radical cyclizations of geminal radical precursors Derrick L. J. Clive and Derek C. Cole pg 3263; DOI: 10.1039/P19910003263 |
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Functional carbonates: cyclic -methylene and -oxopropyl carbonates from prop-2-ynyl alcohol derivatives and CO2 Jean Marc Joumier Jean Fournier Christian Bruneau and Pierre H. Dixneuf pg 3271; DOI: 10.1039/P19910003271 |
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Photocyclisation of enamides. Part 35. New total syntheses of the ergot alkaloids ()-chanoclavine-1 and ()-isochanoclavine-I using a fragmentation of 3-amino alcohols Ichiya Ninomiya Naoko Habe (née Kuninobu) Toshiko Kiguchi and Takeaki Naito pg 3275; DOI: 10.1039/P19910003275 |
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Cleavage of validoxylamine A derivatives with N-bromosuccinimide: preparation of blocked synthons useful for the construction of carba-oligosaccharides composed of imino linkages Seiichiro Ogawa Akihiro Nakajima and Yasunobu Miyamoto pg 3287; DOI: 10.1039/P19910003287 |
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The synthesis of 1,8-disubstituted 10,11-dihydrodibenz[b,f]oxepin-10-ones. analogues of anaesthetic steroids Peter M. Burden Hugh R. Capper Robin D. Allan and Graham A. R. Johnston pg 3291; DOI: 10.1039/P19910003291 |
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A novel synthetic approach to ethers Alan R. Katritzky Xiaohong Zhao and Irina V. Shcherbakova pg 3295; DOI: 10.1039/P19910003295 |
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Enantioselective synthesis of (S)--acetylenic -aminobutyric acid (GABA) Andrew B. Holmes Alethea B. Tabor and Raymond Baker pg 3301; DOI: 10.1039/P19910003301 |
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Enantioselective synthesis of (S)-trans--butenynyl -aminobutyric acid (GABA) Andrew B. Holmes Alethea B. Tabor and Raymond Baker pg 3307; DOI: 10.1039/P19910003307 |
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Amino acids and peptides. Part 31. Total synthesis of eglin c. Part 1. Synthesis of a triacontapeptide corresponding to the C-terminal sequence 41–70 of eglin c and related peptides and studies on the relationship between the structure and inhibitory activity against human leukocyte elastase, csthepsin G and -chymotrypsin Yoshio Okada and Satoshi Tsuboi pg 3315; DOI: 10.1039/P19910003315 |
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Amino acids and peptides. Part 32. Total synthesis of eglin c. Part 2. Synthesis of a heptacontapeptide corresponding to the entire amino acid sequence of eglin c and of related peptides, and studies on the relationship between the structure and inhibitory activity against human leukocyte elastase, cathepsin G and -chymotrypsin Yoshio Okada and Satoshi Tsuboi pg 3321; DOI: 10.1039/P19910003321 |
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Synthesis of gadolinium ()-10-(1-hydroxypropan-2-yl)-1,4,7,10-tetraazacyclododecane-1,4,7-triyltriacetate via tribenzyl 1,4,7,10-tetraazacyclododecane-1,4,7-tricarboxylate J. Siva Prasad Frank J. Okuniewicz Edward J. Delaney and Douglas D. Dischino pg 3329; DOI: 10.1039/P19910003329 |
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Thermostable enzymes in organic synthesis, Part 6. Total synthesis of (S)–(–)-zearalenone using a TBADH-generated trifunctional chiron Ehud Keinan Subhash C. Sinha and Anjana Sinha-Bagchi pg 3333; DOI: 10.1039/P19910003333 |
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New -electron donors for organic metals: synthesis of substituted tetrathiafulvalenes with eight- and nine-membered dithiaheterocycles: crystal structure of 5,6,7,8-tetrahydro-1,3-dithiolo[4,5-b][1,4]dithiocine-2-thione S. Kalyan Kumar Harkesh B. Singh Jerry P. Jasinski Ernest S. Paight and Ray J. Butcher pg 3341; DOI: 10.1039/P19910003341 |
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Hypervalent organoiodine compounds: radical fragmentation of oxabicyclic hemiacetals. Convenient synthesis of medium-sized and spiro lactones María T. Arencibia Raimundo Freire Aurea Perales María S. Rodríguez and Ernesto Suárez pg 3349; DOI: 10.1039/P19910003349 |
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Diversity of reaction of azoalkenes in cycloadditions George Ferguson Alan J. Lough Donald Mackay and Gamini Weeratunga pg 3361; DOI: 10.1039/P19910003361 |
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On the mechanism of pyrrole formation in the knorr pyrrole synthesis and by porphobilinogen synthase Emmanuel Fabiano and Bernard T. Golding pg 3371; DOI: 10.1039/P19910003371 |
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Perkin communications. Bromine-induced photochemical protodesilylation of benzyltrimethylsilanes by hydrogen bromide Enrico Baciocchi Manuela Crescenzia and Tiziana Del Giacco pg 3377; DOI: 10.1039/P19910003377 |
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Preparation of nucleotide mimics with potent inhibitory activity against HIV reverse transcriptase Diane M. Coe David C. Orr Stanley M. Roberts and Richard Storer pg 3378; DOI: 10.1039/P19910003378 |
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Novel conformation and synthesis of octakis(cyclohexylthio)naphthalene David D. MacNicol William M. McGregor Paul R. Mallinson and Colin D. Robertson pg 3380; DOI: 10.1039/P19910003380 |
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Dependence of ring closure stereoselectivity on the nature of the leaving group: application to the synthesis of a new class of chiral sulfoxide for the control of asymmetric aldol reactions Martin Wills Roger J. Butlin Ian D. Linneya and Richard W. Gibson pg 3383; DOI: 10.1039/P19910003383 |
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X-Ray diffraction structure determination of a novel peptide oxazol-5(4H)-one with a chiral carbon atom in the heterocyclic moiety Claudio Toniolo Giovanni Valle Fernando Formaggio Marco Crisma Wilhelmus H. J. Boesten Stefano Polinelli Hans E. Schoemaker and Johan Kamphuis pg 3386; DOI: 10.1039/P19910003386 |
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Corrigendum Nadia Lage Serge Masson and André Thuillier pg 3389; DOI: 10.1039/P19910003389 |