CHINESE CHEMICAL LETTERS

Vol.11, No.2, 2000

CONTENTS

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An efficient cleavage of 1,3-dioxolane using ZnCl2/THF/H2O¡­.¡­¡­....

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....L. G. OU, D. L. BAI

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 95

Photostimulated SRN 1 reactions of benzyl chloride with carbazolyl nitrogen anion¡­¡­¡­.............................Z. ZHANG, Z. B. CHEN, Q. CHANG, F. JIN

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 97

Aqueous diels-alder reactions of cyclopentadiene with symmetric diester of fumarate or maleate¡­¡­¡­...............G. D. HAN, Z. Y. MA, G. S. HE

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 99

Selective reduction of gem-dichlorocyclopropane derivatives¡­¡­¡­.....

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­..Z. N. LI, Z. ZHENG, H. L. CHEN

 101

Synthesis and structural characterization of a polyphosphazeneas photoconductive material¡­¡­¡­.............................Z. LI, C. M. ZHAN, J. G. QIN

 103

The 1:2 complex of piperazine with some phenols: hydrogen bonding pattern involved in transition states in solution¡­¡­¡­..................................

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­Z. M. JIN, Y. J. PAN, S. H. SHANG, D. J. XU, Y. Z. XU

 

 105

Convenient, efficient one-pot synthesis of ferrocenylcyanide¡­¡­¡­.........

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.....¡­.J. L. ZHANG, C. E. DONG, Y. G. ZHI, L. F. ZHANG

 107

Synthesis of Z and E-(2',5'-dimethoxyphenyl)methylene-butyro-

 lactones¡­¡­......................................................¡­Y. Y. JIANG, Z. Y. LIN, L. Y. ZHU

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 109

A facile synthesis of the C-11 isomer of 5-epi-kudtriol¡­...........¡­¡­.........

¡­¡­¡­¡­¡­¡­¡­.....¡­.G.ZHOU, X.L.GAO, Z.ZHANG, Y.L.LI, Z.Z.SHANG, R.A.LIAO

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111

First total synthesis of 4,5-secoeudesmane-type and iphionane-type compounds--synthesis of 4,5-dioxo-seco-g-eudesmol and 5b,11-dihydroxyiphionan-one¡­¡­¡­¡­¡­¡­¡­¡­¡­.................¡­.................................

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.......Z. M. XIONG, G. ZHOU, X. L. GAO, Y. G. CHEN, Y. L. LI

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113

Molecular design of crown ethers. 191. synthesis of novel disulfide- and diselenide-bridged bis (benzo-12-crown-4)s and their Ag+ selective electrode properties¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.....H. Y. ZHANG, Y. LIU

 

 

115

Theoretical studies on CH3SiH3+H¡úCH3SiH2+H2 reaction with the variational transitional state theory¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..............................

¡­¡­¡­¡­.....¡­.Q. Z. ZHANG, C. P. LIU, S. K. WANG, X. J. XIE, M. ZHANG, Y. S. GU

 

 

119

Coupling between two NO radicals linked through electron-rich rings

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­................................H. Q. HU, X. ZHAO, D. C. FENG, C. B. LIU

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123

Two new indole alkaloids from Evodia rutaecarpa¡­¡­¡­¡­¡­¡­¡­..........

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.....¡­.G. Y. ZUO, X. S. YANG, X. J. HAO

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127

Alkaloids from the roots of Saccopetalum prolificum¡­¡­¡­¡­¡­¡­¡­¡­...

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....¡­¡­...M. L. WANG, J. DU, R. Y. CHEN, D. Q. YU

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129

Mahuangchiside, a new flavone glycoside from chirita fimbrisepala

¡­¡­¡­¡­¡­¡­¡­¡­¡­.....................................................¡­L. D. ZHOU, J. G. YU, J. GUO

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 131

A new bislabdane-type diterpenoid from Cunninghamia lanceolata

....¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­...J. DU, M. L. WANG, R. Y. CHEN, D. Q. YU

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133

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A new bianthraqinone glycoside from Eremurus chinensis¡­¡­¡­¡­¡­¡­

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.....¡­¡­.J. G. SHI, C. LI, Y. P. ZHANG, C. Z. ZHANG

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135

Two new triterpenoid saponins from the seeds of Aesculus chinensis

.....¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.X. W. YANG, J. ZHAO, Y. X. CUI

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 139

Two triterpenoid dimers from Rubus pungens camb var. oldhamii¡­¡­

.....¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..B. G. WANG, W. M. ZHU, X. M. LI, Z. J. JIA, X. J. HAO

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143

Evidence of DNA-ligand binding with different modes studied by spectroscopy¡­¡­¡­¡­¡­¡­¡­¡­.X. M. WANG, X. L. JIANG, Z. H. LU, H. Y. CHEN

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147

Electric field-induced conformational transition of bovine serum albumin from a-helix to b-sheet¡­¡­¡­¡­Y. C. ZHU, G. J. CHENG, S. J. DONG

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149

Separation of chiral drugs with b-CD phosphate by capillary electrophoresis¡­¡­¡­...X. Q. REN, X. D. SU, A. J. HUANG, Y. L. SUN, Z. P. SUN

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153

Determination of kinetic parameters and metal ions in urea-urease system based on the biochemical reaction heat induced laser beam deflection¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­............................................H. T. YAN, X. Y. ZHU

 

 

157

Multilayer film fabrication and photoelectric conversion property of two pyrrolidinofullerene carboxylic acid derivatives¡­¡­¡­¡­¡­¡­..¡­¡­

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

 

 

161

Modification of nylon membrane used for affinity adsorption¡­¡­¡­¡­¡­

¡­¡­¡­¡­¡­¡­¡­......................................¡­¡­¡­H. Y. GAN, Z. H. SHANG, J. D. WANG

 

165

Effect  of  polymerization  temperature  on  propylene polymerization with Cs-symmetric metallocene catalyst¡­.Z. Q. FAN, T. YASIN, L. X. FENG

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167

Preparation and characterization of layered compound zirconium bis(monohydrogenphosphate) intercalated with rare earth complex

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

 

 

171

Cofeeding of methane and ethane to produce syngas over a LiLaNiO/g-Al2O3 catalyst¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.............................................

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­....S. L. LIU, G. X. XIONG, L. Y. XU, S. S. SHENG, W. S. YANG

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175

First synthesis of zirconia-pillared layered lanthanum niobate¡­.............

¡­¡­¡­¡­¡­¡­¡­¡­......................................¡­L. XU, W. H. HOU, C. X. GUO, Q. J. YAN

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179

The dramatic effect of metal precursor on the catalytic performance of Co/SiO2 catalyst for CO2 reforming of CH4¡­¡­¡­¡­¡­¡­.............¡­¡­¡­¡­

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..................C. J. HUANG, J. H. FEI, D. J. WANG, X. M. ZHENG

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181

 

Synthesis of monoclinic form of Gd2-xNaxCuO4 by direct precipita-

tion from molten salt....L. ZHANG, L. Z. ZHAO, J. B. ZHANG, C. Y. XU, S. H. LIU

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185
Supported by the National Natural Science Foundation of China