中国科技论文在线

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2006年11月03日

【期刊论文】Reaction of [Et3NH][(m-RE)(m-CO)Fe2(CO)6] (E S, Se) with azides. Synthesis of (m-RE)(m-p-R1C6H4N3H) Fe2(CO)6 and crystal structure of (m-ButS)(m-PhN3H)Fe2(CO)6

周向葛， Zhong-Xia Wang a， *， Shao-Bin Miao a， Zhong-Yuan Zhou b， Xiang-Ge Zhou b

Journal of Organometallic Chemistry 601(2000)87-92，-0001，（）：

-1年11月30日

摘要

The reaction of [Et3NH] [(m-RE)(m-CO)Fe2(CO)6] (E S, Se) (1) with aryl azides gives bridging triazenido complexes (m-RE)(mp-R1C6H4N3H)Fe2(CO)6 (2-8) (2, RE ButS, R1 H; 3, RE PhS, R1 H; 4, RE ButS, R1 Cl; 5, RE ButS, R1 MeO; 6, RE PhS, R1 MeO; 7, RE PhSe, R1 H; 8, RE PhSe, R1 Cl). These complexes were characterized by elemental analyses and 1H-NMR and IR spectroscopy. The structure of complex 2, established by single-crystal X-ray diffraction analysis, shows that the triazenido ligand binds to two iron centers in a bridging bidentate fashion.

Iron， Selenium， Sulfur， Triazenido ligand， Complex， Structure

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2006年11月03日

【期刊论文】Nitrene transfer reaction catalyzed by substituted metallophthalocyanines

周向葛， Sheng-Yong Yan a， Yi Wanga， Yuan-Jie Shub， Hui-Hua Liu a， Xiang-Ge Zhoua， c， ∗

Journal of Molecular Catalysis A: Chemical 248(2006)148-151，-0001，（）：

-1年11月30日

摘要

Metallophthalocyanines bearing substituents are found to be efficient catalysts for nitrene transfer reactions. Under optimized reaction conditions, aziridination of alkenes and amidation of C H bonds with PhI=NTs by using 3-trifluromethylphenyoxy-substituted phthalocyanine-iron complex led to the highest yields of 90% and 85% for 4-methylstyrene and 4-ethyltoluene, respectively.

Nitrene transfer， Aziridination， Amidation， Catalytic， Metallophthalocyanine

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2006年11月03日

【期刊论文】Cyclopropanation of alkenes catalyzed by metallophthalocyanines

周向葛， Hui-Hua Liu a， Yi Wanga， Yuan-Jie Shub， Xiang-Ge Zhoua， c， ∗， Jiang Wu a， Sheng-Yong Yan a

Journal of Molecular Catalysis A: Chemical 246(2006)49-52，-0001，（）：

-1年11月30日

摘要

Metallophthalocyanines bearing substituents especially electron-withdrawing substituents are found to be efficient catalysts for cyclopropanation of alkenes with EDA. The influences of reaction conditions have been studied, leading to the highest yield of 91% for styrene by using fluorosubstituted ruthenium–phthalocyanine complex.

Cyclopropanation， Metallophthalocyanine， Catalyst， Fluoro-substituted

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2006年11月03日

【期刊论文】Asymmetric epoxidation catalyzed by Cr(Ⅲ)-binaphthyl Schiff base complexes

周向葛， Zheng-Kai Li a， Lei Liang a， Li Yanga， b， Hua Chena， Xiang-Ge Zhoua， c， *

Journal of Molecular Catalysis A: Chemical 235(2005)108-113，-0001，（）：

-1年11月30日

摘要

A series of chromic complexes with binaphthyl Schiff base as ligands are synthesized. Their catalytic abilities in asymmetric epoxidation and the effects of reaction conditions such as temperature, solvent and additive have also been studied, leading to the highest ee of 65% for 4-chlorostyrene; the reaction seems to involve a Cr(V)-oxo active species.

Chromic complex， Binaphthyl Schiff base， Asymmetric epoxidation

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2006年11月03日

【期刊论文】Ligand chirality-controlled selective formation of mono-and dinuclear copper complexes

周向葛， Xiang-Ge Zhou a， Jie-Sheng Huang a， Zhong-Yuan Zhou b， Kung-Kai Cheung a， Chi-Ming Che a， *

Inorganica Chimica Acta 331(2002)194-198，-0001，（）：

-1年11月30日

摘要

Reaction of copper (II) acetate with the (S)-enantiomer of a tridentate binaphthyl Schiff base ligand, 2-(3,5-dichloro-2-hydroxybenzylideneamino)-2'-hydroxy-1,1'-binaphthyl (H2L), in methanol afforded mononuclear copper (II) complex [CuII(HL)2] ((S,S)-1) in 52% isolated yield. The same reaction gave dinuclear copper (II) complex [CuII2 (L)2] ((R,S)-2) in 73% isolated yield whenracemic-H2L was used instead of (S)-H2L. Both complexes (S,S)-1 and (R,S)-2 were characterized by elemental analysis, massspectrometry, and X-ray crystallography. The present work highlights the functioning of ligand chirality as a 'switch' for selectiveformation of mono-and dinuclear metal complexes.

Chirality， Copper complexes， Schiff base ligands， Crystal structures

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