CHINESE CHEMICAL LETTERS

Vol. 10, No. 9, 1999

CONTENTS

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Enantioselective addition of diethylzinc to benzaldehyde by catalysts of chiral heterocyclic ligands ¡­¡­¡­¡­¡­¡­¡­¡­¡­Y. HE, Y. L. LI, Y. D. GUAN

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717

N,N ¨C Di ¨C isopropyl ¨C O,O ¨C Di ¨C p ¨C methoxybenzylphosphoramidite ¨CA new phosphorylating reagent¡­.¡­¡­¡­¡­¡­¡­¡­...¡­¡­¡­¡­¡­¡­¡­¡­..¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­..S. OZAKI, A. Y. HAO, X. Z. KONG, D. X. ZHENG

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719

Synthesis of aminomethyl arylsulfides via novel synthetic auxiliary benzotriazole promoted by samarium diiodide¡­¡­¡­¡­...¡­¡­¡­¡­¡­¡­...

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­......¡­¡­¡­G. L. LU, Y. F. ZHENG, Y. M. ZHANG

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723

Rearrangement of hydrolysis products of tetrahydrofolate model compound¡­¡­¡­¡­¡­¡­¡­¡­¡­..........J. X. CHEN, J. S. HAO, W. GUO, C. Z. XIA

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727

A new Reformatsky type reaction via cadmium salt in aqueous media¡­¡­¡­¡­¡­¡­¡­¡­¡­.¡­¡­¡­¡­..¡­¡­¡­..X. L. XU, P. LU, Y. M. ZHANG

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729

Synthesis of asymmetric 4H-1, 3, 2-benzodioxaphosphorin 2-sulfides from intramolecular cyclization reaction¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­......J. R. CHENG, J. WEN, R. L. SHAO, H. Y. CAO, R. Q. HUANG

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731

Stereoselective synthesis of (6R) ¨C 6 - (5-methyl ¨C 2 - furyl) ¨C 2 ¨C oxocyclohexanecarboxyl - 10¡¯, 2¡¯ - sultam¡­...¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­X. L. WANG, Y. H. HU, L. G. OU, D. L. BAI

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733

A new chiral synthesis of naturally occurring (-)-(S)-4-hydroxy-2-pyrrolidinone¡­..¡­..P. Q. HUANG, X. ZHENG, S. L. WANG, J. L. YE, L. R. JIN

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735

Synthesis of 9-(5-pentyl-2-furyl)nonanoic acid¡­¡­¡­¡­.¡­¡­¡­¡­¡­¡­¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­...¡­..H. R. PIAO, K. NAGAYAMA, A. TANAKA

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737

Synthesis of 1¨C[(O,O-diphenyl phosphonyl) arylmethyleneamino carbonylmethyl]uracils¡­¡­¡­¡­¡­¡­.¡­....¡­X. J. LIU, G. C. CHI, R. Y. CHEN

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739

Synthesis and properties of D-thymidylyl (3¡¯®5¡¯)L-thymidine (D/L-TpT)¡­¡­¡­¡­¡­¡­...¡­¡­¡­¡­¡­¡­¡­.................X. H. GU, Y. B. ZHANG, Y. Q. CHEN

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741

Formation and photoelectrochemical properties of charge transfer complexes between fullerene and metallophthalocyanine¡­¡­¡­¡­¡­.¡­¡­

¡­¡­¡­¡­¡­¡­¡­..¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­..Z. H. CHEN, J. LIN, J. LI, H. ZHANG

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745

Synthetic studies of an analogue of HIV-1 protease inhibitors of didemnaketals: Construction of the C1-C8 intermediate¡­¡­¡­¡­¡­¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­..P. Z. WANG, Y. X. JIA, Y. Q. TU, B. WU

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749

Molecular mechanics study on asymmetry catalysis.....D. W. GUO, X. Z. YANG

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751

Common pharmacophore model and 3D-QSAR analysis of two different tyrphostin families¡­..¡­.......N. LIAO, T. J. HOU, J. Q. WANG, C. X. LI, X. J. XU

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755

An enhanced comparative molecular field analysis method using genetic algorithm¡­¡­¡­¡­¡­¡­¡­¡­.¡­¡­..¡­.T. J. HOU, N. LIAO, H. P. LUO, X. J. XU

 

759

Mass spectral behavior of some indole Schiff-base derivatives¡­¡­¡­¡­¡­¡­

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­.L. XU, S. P. XU

 

763

 

Three new triterpenoid saponins from the seeds of Aesculus chinensis...........¡­¡­¡­¡­¡­¡­¡­¡­¡­.........................J. ZHAO, X. W. YANG, Y. X. CUI, X. H. LIU

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767

Paeonivayin, a new monoterpene glycoside from Paeonia delavayi¡­...¡­¡­¡­

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­Y. B. MA, D. G. WU, J. K. LIU

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771

A new oligostilbene from the roots of Vitis Amurensis¡­¡­¡­¡­¡­¡­...¡­¡­¡­¡­

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­¡­.K. S. HUANG, M. LIN, L. N. YU, M. KONG

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775

Capillary electrophoretic separation of proteins under the control of radial electric field..¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..¡­¡­¡­¡­..Y. CHEN, Y. ZHU

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777

Effect of caffeic acid on the tumor cells U937 evaluated by an electrochemical voltammetric method¡­....¡­..H. Y. JIAN, C. C. AN, J. FENG, ¡­¡­¡­¡­¡­¡­¡­¡­.....¡­Y. X. CI, Y. LI, A. SUGISAWA, M. IZUMITANI, Z. L. CHEN

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781

Synthesis and characterization of liquid crystal with lower temperature of phase change of meso-tetra-(4-n-lauroyloxyphenyl)porphyrin¡­¡­¡­¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­¡­..W. LIU, T. S. SHI

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783

Copolymerization of N-4-dibenzoylmethane maleimide with styrene¡­¡­¡­¡­¡­¡­¡­..

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­¡­¡­¡­¡­¡­¡­¡­¡­Q. H. CHU, M. X. DING

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787

Preparation and surfactant properties of amino acid-based surfactants¡­....

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­...¡­¡­¡­¡­¡­¡­.¡­...Q. CHEN, S. F. CHEN, Z. Y. LI

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789

Ultrafast optical Kerr effect of conjugated silver phenylacetylide complex oligomer¡­...¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­...

¡­¡­..¡­..Y. H. XU, L. LIN, J. G. LUO, B. K. TEO, Z. J. XIA, Y. H. ZOU, H. Y. CHEN

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793

Entanglement of polymer chains in concentrated region by fluorescence probe technique¡­¡­¡­¡­...¡­¡­¡­¡­¡­..¡­...¡­X. S. LI, G. C. WANG, B. L. HE

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795

The luminescence of the phosphor Sr2ZrO4 with one-dimensional chains structure¡­¡­¡­¡­¡­..¡­¡­¡­¡­¡­¡­¡­...¡­...L. ZHANG, G. Y. HONG, X. L. SU

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799

Effect of metallic additives on structure and catalytic properties of supported NiPB/SiO2 catalyst¡­¡­¡­¡­¡­.¡­....A. Z. MA, W. Z. LU, E. Z. MIN

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803

The site symmetry of Eu3+ in ZnS:Eu nanoparticle¡­...¡­¡­.¡­¡­¡­¡­¡­¡­¡­

¡­¡­¡­¡­¡­¡­.....¡­X. L. SUN, G. L. ZHANG, G. Q. TANG, W. J. CHEN, G. Y. HONG

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807

Supported by the National Natural Science Foundation of China