CHINESE CHEMICAL LETTERS

 Vol. 14, No. 4, 2003

CONTENTS

Synthesis and characterization of poly(ether imide)s containing m-methyl and phthalazinone moieties ¡­¡­.¡­¡­¡­................¡­J. Y. WANG, S. D. XIAO, X. G. JIAN

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331

A new solvent-free synthesis of a, a¢-dibenzylidenecycloalkanones from acetals with cycloalkanones under microwave irradiation ¡­¡­¡­¡­..........................¡­¡­¡­..

¡­¡­¡­¡­¡­¡­...¡­¡­¡­¡­¡­¡­¡­¡­¡­................¡­D. F. HUANG, J. X. WANG, Y. L. HU

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333

Polystyrene-supported benzyl selenide: an efficient reagent for highly stereocontrolled synthesis of substituted olefins ¡­¡­¡­.......¡­¡­.¡­¡­¡­¡­.¡­¡­.

¡­¡­¡­¡­..¡­..¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­............¡­..¡­W. M. XU, L. M. YU, X. HUANG

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335

Study on the synthesis of metabolite CM2 of clausenamide¡­¡­¡­.............¡­¡­...¡­..

 ¡­¡­¡­¡­.¡­..¡­¡­..¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.................. X. Z. LI, K. M. WU, L. HUANG

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338

A novel access to organostannane compounds under ultrasound irradiation

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.¡­¡­¡­.....¡­¡­¡­L. Z. PENG, T. S. MEI, T. ZHANG, Y. L. LI

 

341

 

Synthesis and biological activities of N-phosphoryl branched peptides ¡­¡­.............

¡­¡­¡­¡­¡­¡­¡­.........¡­¡­S. L. CAO, Y. Y. JIANG, Y. P. FENG, Y. L. NIU, Y. F. ZHAO

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343

A new technique of synthesizing 10-hydroxy-5-methyl- 5, 10- dihydro-phenophosphazine 10-oxide¡­¡­¡­¡­¡­.¡­¡­¡­......¡­Z. G. YIN, D. F. ZHAO

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347

Studies on a new usage of hypophosphorous acid-iodine system in N-C bond cleavage¡­¡­¡­¡­¡­..¡­.¡­¡­..........¡­.¡­. G. MENG, L. ZHAO, Y. F. LUO, F. E. CHEN

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351

Henry reaction in aqueous media: chemoselective addition of aldehydes¡­................

¡­¡­...¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..............¡­.. C. L. ZHOU, Y. Q. ZHOU, Z. Y. WANG

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355

An efficient synthetic method of nordihydroguaiaretic acid (NDGA) ¡­..............¡­¡­

¡­¡­¡­¡­¡­¡­¡­¡­....¡­......¡­...Y. M. XIA, X. P. CAO, K. PENG, X. F. REN, X. F. PAN

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359

The synthesis of gracillin and dioscin: two typical representatives of spirostanol glycosides  ¡­¡­¡­¡­.............................¡­.C.C. ZOU, S. J. HOU, P. S. LEI, X. T. LIANG

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361

An efficient process for preparing 4-methyl-2-phenyl piperazine hydro-chloride and its derivatives ¡­¡­¡­¡­.¡­............................¡­...¡­B. S. GUO, Y. S. YANG, R. Y. JI

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365

Dechlorination of aromatic chlorides in aqueous system catalyzed by functionalized MontK10 supported palladium-tin ¡­¡­¡­................¡­¡­¡­¡­¡­¡­...¡­

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..............¡­Y. H. DONG, Q. Z. MENG, R. H. KANG

 

 

368

Regioselective bromination of 3, 4-dimethoxy toluene with N-bromo-succinimide

¡­¡­¡­¡­¡­¡­¡­....¡­¡­.......................................¡­¡­¡­H. M. MA, Z. Z. LIU, S. Z.CHEN

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371

Preparation for supramolecular complexes of chiral diols BDPDD, DMBDPD and BINOL with some prochiral compounds ¡­¡­¡­¡­¡­¡­..........................................¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­..¡­¡­¡­¡­¡­..........¡­D. J. LIU, Z. X. SHAN, R. WANG, J. G. QIN

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375

A new furostanoside from Asparagus filicinus  ¡­¡­......¡­¡­¡­¡­¡­...¡­¡­..

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­........ Y. F. LI, L. H. HU, F. C. LOU, J. R. HONG

 

379

A new diterpene from Spiraea japonica var. ovalifolia¡­¡­......¡­¡­¡­...¡­¡­

¡­¡­¡­¡­¡­....... G. Y. ZUO, H. P. HE, B. G. WANG, X. HONG, Y. M. HU, X. J. HAO

 

383

 Dissectol A, a novel monoterpene glycoside from Incarvillea dissectifoliola

¡­¡­¡­¡­¡­¡­¡­¡­¡­.....¡­¡­¡­¡­¡­¡­¡­¡­..............¡­W. CHEN, Y. M. SHEN, J. C. XU

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Three new cucurbitacins from Hemsleya lijiangensis¡­..¡­¡­............¡­¡­¡­¡­¡­....

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­................¡­M. H. CHIU, J. GAO

 

 385

 

  

389

New eudesmane and eremophilane derivatives from Laggera Alata¡­¡­..............¡­..

¡­¡­¡­.¡­¡­¡­¡­.....¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.¡­¡­¡­.......¡­...Q. X. ZHENG, Z. J. XU, .¡­¡­.X. F. SUN, F. GUÉRITTE, M. CESARIO, C. H.K. CHENG, H. D. SUN, Y. ZHAO

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393

Investigation on the extraction mechanism of Au (I) from cyanide solution with quaternary ammonium system¡­¡­¡­¡­¡­..........................¡­¡­¡­¡­¡­¡­¡­¡­.¡­.¡­¡­.

¡­¡­¡­¡­.¡­.........¡­..J. Z. JIANG, W. H. LI, W. ZHOU, H. C. GAO, J. G. WU, G. X. XU

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397

Influence of mobile phase composition on the enantioseparation of methoxyl flavanones with self-prepared CDMPC column and chiral recognition mechanism¡­¡­¡­¡­¡­¡­¡­..¡­¡­¡­......................................¡­¡­¡­¡­¡­¡­¡­¡­.¡­¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­.........¡­¡­¡­¡­¡­B. H. SHAO, X. Z. XU, J. D. LU, L. ZOU, X. Y. FU

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401

A new method for decreasing mass limit of detection and increasing number of theoretical plates in capillary electrophoresis with ampero-metric detection ¡­¡­¡­¡­¡­¡­¡­..¡­¡­..........................................¡­.. X. M. SUN, Q. F. WENG, W. R. JIN

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404

Phase transition and micellization of temperature responsive dextran-graft-poly (N-isopropylacrylamide) polymers  ¡­¡­...................................¡­¡­¡­...¡­¡­¡­¡­¡­¡­..

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..............¡­.. L. Q. WANG, K. H. TU, Y. P. LI, J. ZHANG

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407

Capacitance characterization of the effect of pH value on the self-assembled monolayers of octadecanethiol ¡­¡­¡­...................................¡­.¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­........¡­.... K. Q. DING, Q. F. WANG, R. T. TONG, H. B. SHAO

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411

Synthesis and reaction of [MnRe(CO)6(¦Ì-SH)(¦Ì-SC(H)PPri3)(PPh3)]¡­..........¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..........¡­..¡­.Y. Q. MA, X. CHEN, J. LI, Q. L. XIE, H. G. WANG

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413

Structures and mechanical properties of PVC/Na+-montmorillonite nano-composites¡­¡­¡­¡­¡­¡­.... C. Y. WAN, X. Y. QIAO, Y. ZHANG, Y. X. ZHANG

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417

TEM study on the formation process of TiO2 nanotubes ¡­¡­¡­..¡­...............¡­¡­..¡­

¡­¡­...... J. W. ZHANG, X. Y. GUO, Z. S. JIN, S. L. ZHANG, J. F. ZHOU, Z. J. ZHANG

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419

A new biochemical way for conversion of CO2 to methanol via dehydrogenases encapsulated in SiO2 matrix ¡­¡­¡­¡­..¡­.............................................¡­¡­¡­¡­¡­.......

¡­.¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­............¡­¡­.... H. WU, Z. Y. JIANG, S. W. XU, S. F. HUANG

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423

Preparation of phenolic resin/silver nanocomposites via in-situ reduction¡­...........

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­¡­.............. L. J. ZHI, J. Y. TANG, T. ZHAO, Y. Z. YU

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426

Preparation of La-Ti composite oxide nanocrystal and examination of their surface topography with atomic force microscope¡­¡­¡­¡­..............................¡­¡­¡­¡­¡­¡­¡­

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..........¡­. L. GU, Y. L. WANG, L. L. TANG, J. J. ZHU, J. H. WU

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429

Synthesis, structure and conductivity of the new charge-transfer salt (ET)2(CH2=CH-CH2-SO3)¡ÁH2O ¡­.¡­¡­¡­¡­¡­¡­.........................¡­¡­¡­¡­¡­¡­¡­¡­¡­....

¡­¡­¡­¡­.......... Z. LIU, Q. FANG, W. T. YU, M. H. JIANG, D. Q. ZHANG, D. B. ZHU

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433

Theoretical investigation on radical-coupling reactivity of indolinonic Aminoxyls   ¡­.¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..¡­¡­..................................¡­¡­. H. Y. ZHANG, L. F. WANG

 

437

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