CHINESE CHEMICAL LETTERS 

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Vol. 11, No. 9, 2000

CONTENTS

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Deprotection of t-butyldimethylsiloxy (TBDMS) protecting group with catalytic copper (II) chloride dihydrate¡­...Z. P. TAN, L. WANG, J. B. WANG

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753

Synthesis of symmetric diketones from imidazolinium salt and bis-Grignard reagents¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­........¡­.Z. SHI, L. G. LU

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757

Thiazolidine derivatives as chiral catalysts in the enantioselective addition of diethylzinc to benzaldehyde¡­¡­¡­¡­¡­¡­.¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­.Q. L. MENG, Y. L. LI, Y. HE, Y. D. GUAN

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761

A facile synthesis route to 1,3-dichlorodisilazanes¡­¡­¡­......¡­¡­¡­¡­¡­¡­..

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­......C. H. XU, N. ZHOU,Z. M. XIE

 

765

Synthesis and cation-mediated electron transfer in fluorescence quenching of donor-acceptor podands¡­¡­¡­¡­¡­¡­¡­¡­.¡­¡­¡­¡­.....H. JIANG, H. J. XU

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767

Synthesis of peptoid nucleic acid with thymine as nucleic base¡­¡­..¡­¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­......Y. WU, J. C. XU

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771

A new approach to [60]fullerene ferrocenyl derivative¡­¡­¡­¡­¡­¡­¡­¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.....Y. Y. CHEN, X. H. LI

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775

Synthesis and characterization of poly (aryl ether ketone) containing phthalazinone and naphthalene moieties.....¡­.Y. GAO, X. G. JIAN, J. Y. WANG

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777

Harpagometabolins I and II, two new metabolites from harpagoside by human intestinal bacteria¡­¡­¡­..¡­¡­...X. W. YANG, C. T. ZOU, M. HATTORI

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779

A new ceramide from the soft coral Cladiella humesi Verseveldt¡­¡­...¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.......M. Y. WANG, Y. LUO, J. Y. SU

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783

Two polyoxygenated pyrrolylpyridine and bipyrrole alkaloids from Speranskia tuberculata¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­

¡­¡­¡­¡­.....J. G. SHI, W. Y. HU, G. X. ZHOU, Y. C. YANG, H. Q. WANG, M. WANG

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785

Spiramide, a new diterpene amide from the roots of Spiraea japonica var. acuta¡­¡­.¡­¡­..¡­..Y. M. SHEN, H. P. HE, Y. S. ZHANG, B. G. WANG, X. J. HAO

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789

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

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­...X. D. CONG, W. C. YE, C. T. CHE

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793

Two new ent-kaurane diterpenoids from Isodon xerophilus¡­¡­..¡­¡­¡­¡­...

¡­¡­....A. J. HOU, H. YANG, B. JIANG, Q. S. ZHAO, Y. Z. LIU, Z. W. LIN, H. D. SUN

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795

Purification of RhIFN- in bacteria bodies with acetic acid-water as mobile phase in RPLC¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­

¡­¡­¡­¡­¡­....¡­..Y. H. SHEN, Q. D. ZHANG, X. D. GENG, Z. Q. ZHANG, Y. D. HOU

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799

Key conditions in capillary electrophoresis of amino acids with indirect ultraviolet detection¡­¡­¡­¡­.¡­¡­¡­¡­¡­..¡­.Z. X. WANG, Y. CHEN, Q. GUO

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803

The simultaneous determination of Cu Pb Cd and Sb by derivative adsorption chronopotentiometry¡­¡­¡­..¡­¡­¡­¡­¡­X. L. ZHANG, S. Y. PAN

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807

A study on a partially immersed gold electrode using an electrochemical quartz crystal impedance system¡­...¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..¡­Q. J. XIE, Y. Y. ZHANG, M. SUN, L. YI, S. Z. YAO

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809

A dye-sensitized nanocrystalline solid state photovoltaic cell¡­¡­¡­¡­¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.....¡­¡­D. S. ZHANG, X. R. XIAO

 

813

Measurement of monomer reactivity ratios of D,L-3-methylglycolide with glycolide or D,L-lactide¡­¡­.¡­..C. M. DONG, K. Y. QIU, Z. W. GU, X. D. FENG

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815

Novel covalently linked self-assembled films from a functional hyperbranched conjugated poly (phenylene vinylene)¡­...¡­¡­¡­¡­¡­.¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­...¡­J. ZHAI, F. L. BAI, Q. G. HE, Y. S. LI, L. JIANG, T. LIN

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819

Enhancement of solubility of Troeger¡¯s base in supercritical carbon dioxide by methanol¡­¡­¡­¡­¡­¡­¡­.... L. REN, M. HUANG, B. G. SU, P. D. WU

 

823

Oxidative methylation of toluene with methane over basic zeolite catalysts promoted with alkali metal bromides and alkali metal oxides¡­¡­¡­¡­¡­...

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..¡­¡­L. P. ZHOU, W. LI, K. Y. TAO, X. W. LI, H. X. LI

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827

Novel properties of supramolecular complexes formed by pairing cationic porphyrin and anionic metal-oxo cluster¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­¡­.S. Q. LIU, J. Q. XU, H. R. SUN

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831

The novel benzo-15-crown-5 with palladium(ii) complex: [Na(B15C5)]2[Pd(SCN)4]¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­

¡­¡­¡­...¡­L. Y. ZHU, J. M. DOU, Y. LIU, D. Z. SUN, P. J. ZHENG, C. X. DU, Y. ZHU

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835

An encapsulation of the rare earth complex in modified mesoporous molecular sieve MCM-41¡­¡­.¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..

¡­¡­¡­¡­¡­¡­.....¡­.Q. H. XU, L. S. FU, L. S. LI, H. J. ZHANG, Q. Q. MENG, R. R. XU

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839

Preparation of CaS:Eu2+ Phosphor by microwave heating method and its luminescence¡­¡­¡­¡­¡­¡­¡­¡­.¡­¡­¡­¡­¡­¡­¡­¡­.¡­¡­..P. J. LIU, Y. L. LIU

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843
Supported by the National Natural Science Foundation of China