Synthesis of poly-γ-(β-cyanoethylsulfenyl)  propylsiloxane palladium (0) complex and its catalytic  property

Chin. J. Org. Chem. ›› 1999, Vol. 19 ›› Issue (4): 395-400. Previous Articles Next Articles

Original Articles

聚γ-(β-氰乙硫基)丙基硅氧烷钯(0)配合物的合成与催化性能

蔡明中;廖志勇;盛寿日;宋才生

江西师范大学化学系.南昌

发布日期:1999-08-25

Synthesis of poly-γ-(β-cyanoethylsulfenyl) propylsiloxane palladium (0) complex and its catalytic property

Cai Mingzhong;Liao Zhiyong;Sheng Shouri;Song Caisheng

Jiangxi Normal Univ., Dept of Chem.Nanchang

Published:1999-08-25

Abstract

A fume silica-supported poly-γ-(β-cyanoethylsulfenyl) propylsiloxane palladium (0) complex was synthesized from γ-(β - cyanoethylsulfenyl) propyltriethoxysilane and fume silica via hydrolysis, followed by treatment with palladium chloride in acetone and then the reduction with hydrazine hydrate in ethanol. The complex was characterized by elemental analysis and XPS. The title complex is an efficient catalyst for Heck arylation of styrene and acrylic acid with aryl iodides. This polymeric palladium (0) catalyst is stable to air and can be reused without noticeable loss of activity. Hence this paper presents a simple and practical stereo-selective synthetic method for unsymmetrical trans-stilbenes and substituted trans- cinnamic acids.

Key words: SYNTHESIS, CATALYTIC BEHAVIOUR, ARYLATION, SUPPORTED CATALYST, PALLADIUM CHLORIDE, STEREOSELECTIVITY, POLYSILOXANE, PALLADIUM COMPLEX, SILICON DIOXIDE, HYDRAZINE HYDRATE

CLC Number:

O627

Cite this article

Cai Mingzhong;Liao Zhiyong;Sheng Shouri;Song Caisheng. Synthesis of poly-γ-(β-cyanoethylsulfenyl) propylsiloxane palladium (0) complex and its catalytic property[J]. Chin. J. Org. Chem., 1999, 19(4): 395-400.

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聚γ-(β-氰乙硫基)丙基硅氧烷钯(0)配合物的合成与催化性能

Synthesis of poly-γ-(β-cyanoethylsulfenyl) propylsiloxane palladium (0) complex and its catalytic property

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