CHINESE CHEMICAL LETTERS

Vol. 10, No. 5, 1999

CONTENTS

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Synthesis of Novel Nucleoside: 2'-Deoxyuridine-3',5'-di(4,4'-dimethoxy-5, 6, 5', 6'-dimethylenedioxybiphenyl-2-methoxycarbonyl 2'-carboxylate)….

…………………………………....…..R. Y. GUO, J. B. CHANG, R. F. CHEN, J. X. XIE

 

 

341

Condensation products from b-keto-d-valerolactones……………………….

……………………………………………………….......Y. M. WANG, Z. M. LI, J. F. LI

 

 

345

Synthesis of chiral 3-acylcamphors……………………………………...……

…………………………………..……….....Z. M. LI, Z. X. XU, Z. ZHENG, H. L. CHEN

 

 

347

A convenient synthesis of a-phenylseleno-a, b-unsaturated nitriles via arsonium salt…………….....…………....G. S. DENG, Z. Z. HUANG, X. HUANG

 

 

349

A simple and rapid method for synthesis of N,2-diaryl diazenecarboxamides……………………………………………………….

………....…...J. P. LI, H. WANG, Y. L. WANG, X. Y. WANG, C. L. WANG, D. L. MA

 

 

 

351

Synthesis of novel asymmetrical tri-tert-butyl naphthalocyanine using structurally distorted subnaphthalocyanine………………………………...

…………………....………………X. B. WANG, D. H. TANG, J. C. ZHANG, X. H. LIU

 

 

 

353

Synthesis of N6-cyclopropyl-2,6-diamino-9b-D-arabinofuranosyl-purine…..

……………………………....……………J. B. CHANG, R. Y. GUO, J. HE, R. F. CHEN

 

357

Synthesis and biological activities of w-heterocyclyl-w-(1H-1,2,4-triazol-1-yl) acetophenones…..C. H. CHU, X. W. SUN, Z. Y. ZHANG, Z. C. LI, R. A. LIAO

 

 

361

New fungicidally active pyrazolyl-substituted 1,3,4-thiadiazole compounds and their preparation……...…...H. S. CHEN, Z. M. LI, Y. F. HAN, Z. W. WANG

 

 

365

Synthesis and electrical conductivities of fully conjugated schiff base macrocycles containing 1,3,4-oxadiazole….…..S. WANG, W. T. HUA, Z. T. LI

 

 

367

Synthesis of a poly (amide-imide) from 5,6-diphenyl-1-chloroformyl-3,4-benzenedicarboxylic anhydride and bis (4-aminophenyl)ether……………

……………………………….....…..X. G. JIAN, L. CHENG, H. B. ZHEN, Z. Y. WANG

 

 

 

371

Synthesis and properties of Ru(phen)2(phen-NHCOCH2Br)(PF6)2………..

……………………………………………………....…P. WANG, Y. YUAN, G. Y. ZHU

 

373

Modifications of norditerpenoid alkaloids: I. N-Deethylation reactions….

……………………………….....F. P. WANG, J. Z. FAN, Z. B. LI, J. S. YANG, B. G. LI

 

375

Modifications of norditerpenoid alkaloids: . preparation of 7,17-seco yunnaconitine derivatives via rearrangement of chloroamine …………….

…………………………………….....……F. P. WANG, J. Z. FAN, X. X. JIAN, B. G. LI

 

 

 

379

DNA cleavage by copper (II) complexes without added coreactants………...

……………………………………………………....……R. REN, P. YANG, G. Y. HAN

 

 

383

Differentiation effect of pentacoordinate phosphorus on carbohydrate reaction……………………………………..…..…Y. JU, Y. CHEN, Y. F. ZHAO

 

 

387

A triterpenoid saponin from Polycarpon prostratum………………………….

………………………....…..Z. T. DING, J. ZHOU, N. H. TAN, R. W. TENG, J. XIONG

 

 

389

Triterpenoid saponins from Clematis tangutica………………...……………..

…………….…….......H. M. ZHONG, C. X. CHEN, X. TIAN, Y. X. CHUI, Y. Z. CHEN

 

 

391

New diterpenoid alkaloids from Delphinium souliei Franch……………...….

…………………………....…………..L. HE, Y. J. PAN, X. PAN, B. G. LI, Y. Z. CHEN

 

 

395

A new triterpenoid glycoside from Decaisnea fargesii………...…………...…

………....…...J. KONG, R. H. LU, H. X. GAO, M. WANG, Y. P. WANG, H. Q. WANG

 

 

397

A novel eleven-membered heterocyclic compound from algae Sargassum vachell…………..………………………..S. H. XU, Y. Z. CEN, Y. L. LI, S. Y. XU

 

 

401

Determination of trace manganese (II) by its catalytic de-colourizing reaction on the aerial oxidation of 1.5-bis (2-hydroxy-5-chlorophenyl)-3-cyano-formazan and its kinetic reaction mechanism.…S. M. LIU, J. M. PAN

 

 

403

Electrocatalytic oxidation of ethanol on electrodeposited palladium electrode……………………………….....….P. L. SHE, S. B. YAO, S. M. ZHOU

 

 

407

A spectrophotometric study on the host - guest complexation of b-cyclodextrin with 3-indolyl acetate in dilute aqueous solution by determining solubility of guest substance…………………………………...

……………………………………….....D. Z. SUN, J. CHEN, W. M. LU, X. M. ZHENG

 

 

 

 

411

A study of a molecular mechanics field used in simulating enantiorecognition………....H. Q. SHEN, Q. H. WANG, D. Q. ZHU, L. M. ZHOU

 

 

415

Crystallization behevior of poly(3-dodecylthiophene)………………………..

……………………………….......X. Y. QIAO, X. H. WANG, Z. S. MO, H. F. ZHANG

 

 

419

A new self-assembled monolayer of fullerene derivative and its photoelectric conversion property…………………………………………...

…………………………….....J. ZHAI, T. X. WEI, J. H. GE, L. B. GAN, C. H. HUANG

 

 

 

421

High-yield synthesis of endohedral metallofullerenes Y@C2n and Y2@C2n

…………………………....…...Y. F. LIAN, Z. J. SHI, X. H. ZHOU, X. R. HE, Z. N. GU

 

425

Preparation and thermal decomposition of [Cr (salen) (H2O)2] Cl………..

……………………………....……...B. X. ZHOU, S. Q. JIANG, D. ZHOU, Y. T. ZHAO

 

429

Novel ruthenium catalyst ( K-Ru/C60/70 ) for ammonia synthesis………….

……………….…......G. WEI, L. H. WANG, Y. J. LIN, J. YI, H. B. CHEN, D. W. LIAO

 

433

Supported by the National Natural Science Foundation of China