CHINESE CHEMICAL LETTERS

VOL. 13, NO. 12, 2002

CONTENTS

Silver(I)-promoted oxidation and ring-enlargement reactions of unstrained hydrocarbons, polyphenyl-cyclopentadiene………………….……………...............….

..…..…………..……….….........…. X. C. LI, G. L. NING, L. P. WU, J. H. SHAN, Y. LIN

 

 

 

1141

Asymmetric cyclopropanation catalyzed by four stereoisomers of a copper-(Schiff-base) complex with double chiral centers ……………..............………..……...

…………...……………..........…C. S. JIANG, Y. G. LI, C. JIANG, F. WANG, T. P. YOU

 

 

 

1143

Convenient asymmetric borane reduction of ketones catalyzed by simple amino alcohols  and corresponding amino acids ………………………..........................…..…

…..…...……..……………..........…….…..…G. B. SUN, W. W. PEI, H. WANG, W. P. YE

 

 

 

1147

A facile and efficient synthesis of N, N-dimethylarylamines from aryl bromides ……………….….……………..............................….……….... J. K. ZHAO, Y. G. WANG

 

 

1149

Attempt to built 13-hydroxy-9,15-cyclo GA skeletons …………….…..…..............…

……………..…………………………….......…J. P. LIU, L N. MANDER

 

 

1152

An improved synthesis of laminin fragment CR9………………….............……….…

.…………………………………………….................…G. J. TIAN, S. J. LI, D. X. WANG

 

 

1154

Synthesis of a polymer-bound sensitizer and its application in the   photoisomeri-

zation of trans-vitamin D3 to cis-vitamin D3 …………………....…...............................

.……….............…. Y. Y. GAO, C. J. YOU, J. P. CHEN, Y. Y. LIU, B. W. ZHANG, Y. LI

 

 

 

1158

The oxidation of cyclohexene with polymer supported Co(II) in super-critical carbon dioxide………………………………………………….............................……..…

J. LIU, R. ZHANG, L. GAO, T. JIANG, Z. M. LIU, J. HE, B. X. HAN, G. Y. YANG

 

 

 

1162

(Z)-a-Selanyl alkenyl Grignard reagents as convenient precursors for stereoselective synthesis of trisubstituted alkenes…….……………..........…………

…………………………….........….….………..…M. Z. CAI, C. Y. PENG, J. D. HUANG

 

 

 

1164

Synthesis and transesterification of the complexes of methyl  2- methyl-3-trichlorostannylpropoinate with benzylmethylsulfoxide…………………............…..

…………………......….. L. J. TIAN, Z. C. SHANG, Q. S. YU, W. N. ZHAO, B. ZHANG

 

 

 

1168

Highly efficient degradation of thiophosphate pesticides catalyzed by cyclopalladated ferrocenylketimines ……...………………………………................…

…...…………………….........…………..…J. C. TAO, J. JIA, X. W. WANG, S. T. ZANG

 

 

 

1170

Silazyl-lithiums: a kind of new initiators for the anionic non-equilibrium ring-opening polymerization of octamethylcyclotetrasiloxane (D4)  …............….…

……………………….......…………. S. X. SU, Z. J. ZHANG, Z. M. ZHENG, Z. M. XIE

 

 

 

1174

Studies on the structure of kansuinine A from Euphorbia kansui ……........……...

…………………………...........……………………………..…....…Q. PAN, Z. D. MIN

 

 

1178

Two new triterpene esters from Daphniphyllum oldhami ………………...........……

………..………………………………............….......Z. Y. SHAO, D. Y. ZHU, Y. W. GUO

 

 

1181

Two new furostanol glycosides from Asparagus cochinchinensis…………..............

….…………..………….….…………….............…Y. C. YANG, S. Y. HUANG, J. G. SHI

 

 

1185

A new pregnane glycoside from fermented leaves of Agave americana…...........…..

……..…………………………………..............….…... J. M. JIN, X. K. LIU, C. R. YANG

 

 

1189

The optical resolution of chiral tetrahedrone-type clusters containing SCoFeM (M=Mo or W) using high performance liquid chromatography chiral stationary phase……..…….....X. Q. HAN, Y. M. LI, Y. H. ZHANG, S. X. JIANG, L. R. CHEN

 

 

 

 

1193

Determination of utratrace silver using surfactant as sensitizer by catalytic near field laser thermal lens spectrometry…………………………………...........................

..………....……………………………...……............….. Q. HAN, H. T. YAN, Z. J. QIAN

 

 

 

1195

A new HPLC method to determine carbonyl compounds in air…………...............…..

…………………...….………………............…..…..…Q. T. PENG, W. X. HU, X. J. HOU

 

 

1199

Effect of micelle composition on acidic drugs separation behavior by micellar electrokinetic capillary chromatography…………………….............................………

………...……………………........... M. WANG J. W. YAN, Y. F. LIN, J. D. LU, X. Y. FU

 

 

 

1203

TDDFT studies of electronic structure and first hyperpolarizability of tetra-nuclear cubane-like transition metal clusters ……………............……………..

……………………………….............R. J. SA, K. C. WU, P. LIU, C. S. LIN, C. Y. MANG

 

 

 

1205

New ruthenium complexes of fullerene C60&C70 ……………………..........………..

……......…D. D. CHENG, Z. R. DONG, Z. Y. WU, Y. S. LIN, S. G. YANG M. X. ZHAN

 

 

1209

Biocatalytic synthesis of pyruvate from DL-lactate with enzymes in Pseudomonas sp.………………………………….....................................….... J. S. GU, P. XU, Y. B. QU

 

 

1213

New Rh-ZnO/carbon nanotubes catalyst for methanol synthesis………….................

..... J. WANG, H. B. CHEN, H. HE, Y. CAI, J. D. LIN, J. YI, H. B. ZHANG, D. W. LIAO

 

 

1217

A novel ultrafine Ru-B amorphous alloy catalyst for glucose hydrogenation to sorbitol…………………………………….………………………….….......................……

…...………………........………H. S. LUO, H. B. GUO, H. X. LI, M. H. WANG, Y. P. XU

 

 

 

1221

A novel method to synthesize polyorganozircosilazane………..………...............……

……………………………...........C. J. LIU, L. H. LIU, S. Y. YANG, W. GAO, Z. M. XIE

 

 

1225

Theoretical investigation for the abstraction reaction of H with (CH3)3GeH  …………………………………………................. Q. Z. ZHANG, C. S. WANG, Y. S. GU

 

 

1227

Evaluation of transient absorption spectra of N, N, N¢, N¢-tetra- (p -methylphenyl )- 4, 4¢-diamino-1, 1¢- diphenyl ether ( TPDAE ) for electron transfer from TPDAE to fullerenes ( C60 / C70 ) by laser flash photolysis……………........................………

 ……………………………………………………….…………................….... H. P. ZENG

 

 

 

 

1231

Author Index ……………………………………………………….................……………

 

1235

Keyword Index …………………………………………………………..................……….

1248