CHINESE CHEMICAL LETTERS

Vol. 12, No. 6, 2001

CONTENTS

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A new investigation of Mannich reaction ………..…………..…………...…..

……………………………...…… L. Y. MOU, Z. Y. LIN, L. Y. ZHU, X. T. LIANG

 

471

No-solvent condensation reaction of amino acids and their derivatives with pyrandione ………….. Q. JIA, Z. M. LI, S. H. WANG, W. G. ZHAO, Y. M. WANG

 

475

Novel synthesis of benzotriazol-1-yl methyl selenides and tellurides …….....

……………………………...……..……... Z. Z. HUANG, H. W, JIN, D. H. DUAN

 

477

Studies on the synthesis and complexing behavior of crown ethers with external coordination center ……..... J. C. TAO, Y. J. WU, S. J. XU, D. P. ZOU

 

479

 Synthesis of novel spin labeled daunomycin derivative ..………………..…...

………………………………………..…….. S. J. ZHANG, Y. G. WANG, J. B. LI

 

483

First enantioselective synthesis of isoamericanol A and isoamericanin A

……………………………..……….. W. X. GU, A. X. WU, X. G. SHE, X. F. PAN

 

485

Synthesis of cis-(+)–2-hydroxymethyl-5-(cytosine-1¢-yl)-1,3-oxathiolane (BCH-189) ……………………….… J. Z. LI, X. P. QIU, L. X. GAO, M. X. DING

 

487

Synthesis of novel chiral diol ligands for the enantioselective reactions ..... ……………………………..…..................... M. X. LI. Y. M. WANG, R. R. CHEN

 

489

The synthesis of a-DDB, b-DDB and theoretical study with AM1 ………...……... R. Y. GUO, J. B. CHANG, R. F. CHEN, J. X. XIE, D. Y. YAN

 

491

Efficient cleavage of DNA by the novel copper (II) complex derived from 2,2¢-pyridil ligand ………………………………………...…. R. REN, P. YANG

 

495

The synthesis of a novel phosphorus containing antigen ……………………

…………………………..…….….…….. G. Y. XIE, J. H. CHEN, S. S. LIN, S. JIN

 

497

Synthesis and pregnancy terminating activity of 2-aryl imidazo[2,1-a] isoquinolines ……...…. G. X. HU, T. X. WU, Z. C. SHANG, Q. S. YU, R. Y. FANG

 

499

A new alkaloid from the root of Isatis indigotica Fort ……………..…………

……………….……… W. S. CHEN, B. LI, W. D. ZHANG, G. J. YANG, C. Z. QIAO

 

501

Two new glucodides from radix Polygoni multiflori Preparata …….….……

………………. W. S. CHEN, W. D. ZHANG, G. J. YANG, H. S. CHEN, C. Z. QIAO

 

503

A new triterpene from Cephalomappa sinensis ….…………………………....

……………………...……… W. L. MEI, Y. B. MA, S. H. WU, H. F. DAI, D. G. WU

 

507

A new caffeoylquiniclactone, neochlorgeniclatone from the leaves of Betula platyphylla Suk. .………..………...………… S. J. WANG, Y. H. PEI, H. M. HUA

 

509

Effect of calix[4]pyrrole as addition reagent on anions separation in capillary zone electrophoresis (CZE) ……………………………………...….

…………………………………...…. L. J. HE, Q. S. CAI, S. J. SHAO, S. X. JIANG

 

 

511

Using nuclear magnetic resonance and MS/MS spectroscopy for the identification of brodimoprim metabolites in rat urine ……..………………

…...….... C. YANG, W. Y. HE, L. J. LI, R. M. XU, S. R. ZHANG, Z. ABLIZ, Y. K. SI 

 

 

513

Novel polyamides containing biphenyl-phthalazinone moieties……………...

……………………………………..……… X. L. ZHU, X. G. JIAN, R. L. WANG

 

517

Enantioselective alternating copolymerization of propylene with carbon monoxide using cationic palladium-chiral diphosphine catalyst …………....

 …………………………………………..….. J. C. YUAN, Y. H. ZHANG, S. J. LU

 

 

519

Synthesis and properties of novel cationic maleic diester polymerizable surfactants …………………………..… J. XU, G. Z. LI, G. W. ZHOU, F. Y. YAO

 

523

Natural mordenite catalyst used on the ammoniation of methanol ……...….

……………..…… L. Q. MAO, T. L. ZHANG, C. G. FENG, Q. Z. JIAO, D. Z. JIANG

 

527

Promoting the activity of bifunctional catalysts for autoxidation of

1-octanethiol ……………………………..……...... J. H. ZHU, Z. WU, Y. CHUN

 

529

Novel catalytic hydrodechlorination of CCl2F2 over supported PdCl2-(n-C4H9)4N+Cl- molten salts ……………………..….….Y. C. CAO, X. Z. JIANG

 

533

Effect of titanium on methanol synthesis from CO2 hydrogenation over Cu/g-Al2O3 …………………..…… G. X. QI, J. H. FEI, X. M. ZHENG, Z. Y. HOU

 

537

The natural of bonding in PtC and PtN …………….………………………...

………………………....……. X.G. XIE, X. M. GAO, S. X. LUI, H. CAO, S. S. DAI

 

541

Synthesis of carbon nanotubes by catalytic chemical vapor deposition using hydrogen storage alloy as a catalyst ………….………..……………………...

………..… W. X. CHEN, Z. D. XU, J. P. TU, Z. J. LIU, Y. X. JIN, D. Y. LV, X. N. LU

 

 

545

Photocatalytic characterization of TiO2 supported on active carbon ………

………………………..……… X. P. LI, F. YIN, Y. LIN, J. B. ZHANG, X. R. XIAO

 

549

Microwave synthesis of Au nanoparticles with the system of AuCl4-CH3CH2OH ……………….……...……... Z. L. JIANG, Z. W. FENG, X. C. SHEN

 

551

Preparation of ultrafine cobalt powder by chemical reduction in aqueous solution ….……………………………………….. ..........J. Z. GAO, Y. C. ZHAO, J. N. TIAN, W. YANG, F. GUAN, X. Q. LU, Y. J. MA, J. G. HOU, J. W. KANG

 

 

555

Preparation of platinum(II) complexes with 1-b-D-ribofuranosyl-1,2,4-triazole-3-carboxamide and its deoxy-analogue ……..….. W. PEI, K. JOZE

 

559

Synthesis and structure of zinc complex of N, N-bis(benzimidazol-2-yl-methyl) amine …………………………………………………………...…

…….……… X. L. LIU, Q. Y. CHENG, X. YANG, Z. W. MIAO, W. LIU, F. M. MIAO

 

 

563

  Supported by the National Natural Science Foundation of China