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

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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

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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

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1147

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

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1149

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

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

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1152

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

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

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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

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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

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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

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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

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1168

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

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

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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

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1174

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

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­...........¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..¡­....¡­Q. PAN, Z. D. MIN

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1178

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

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

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1181

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

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

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1185

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

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

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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

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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

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1195

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

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

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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

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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

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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

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1209

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

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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

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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

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1221

A novel method to synthesize polyorganozircosilazane¡­¡­¡­..¡­¡­¡­...............¡­¡­

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

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1225

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

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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

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1231

Author Index ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.................¡­¡­¡­¡­¡­

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1235

Keyword Index ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..................¡­¡­¡­.

1248