高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (11): 2073.

• 论文 • 上一篇    下一篇

二氧化硅负载的聚-4-硫杂-6-二苯膦己基硅氧烷钯(0)配合物的合成与催化性能

胡荣华1,2, 李海根1, 蔡明中1   

  1. 1. 江西师范大学化学学院, 南昌 330027;
    2. 井冈山师范学院化学系, 吉安 343000
  • 收稿日期:2002-09-06 出版日期:2003-11-24 发布日期:2003-11-24
  • 通讯作者: 蔡明中(1964年出生),男,博士,教授,主要从事高分子和有机合成方面的研究.E-mail:caimz618@sina.com E-mail:caimz618@sina.com
  • 基金资助:

    国家自然科学基金(批准号:20062002);江西省自然科学基金(批准号:010312)资助

Synthesis of Silica-supported Poly-4-thia-6-diphenylphosphinohexylsiloxane Palladium(0) Complex and Its Catalytic Properties

HU Rong-Hua1,2, LI Hai-Gen1, CAI Ming-Zhong1   

  1. 1. Institute of Chemistry, Jiangxi Normal University, Nanchang 330027, China;
    2. Department of Chemistry, Jigangshan Teachers College, Ji′an 343000, China
  • Received:2002-09-06 Online:2003-11-24 Published:2003-11-24

摘要: 聚-4-硫杂-6-二苯膦己基硅氧烷与氯化钯作用后经水合肼还原,合成了二氧化硅负载的硫-膦混合双齿钯(0)配合物.该配合物可以有效地催化芳(烯)基卤化物与烯烃、炔烃、Grignard试剂的交叉偶联反应,并可回收多次利用,活性基本不变.

关键词: 聚合物钯催化剂, 硫-膦混合双齿钯(0)配合物, 交叉偶联反应, 催化性能

Abstract: Asilica-supported poly-4-thia-6-diphenylphosphinohexylsiloxane palladium(0) complex was synthesized by treatment of poly-4-thia-6-diphenylphosphinohexylsiloxane and palladium chloride in acetone, followed by the reduction with hydrazine hydrate in ethanol.It was found that the title complex was an efficient catalyst for the cross coupling reactions of aryl or vinyl halides with olefins, acetylenes and Grignard reagents.This polymeric palladium(0) catalyst is stable and can be reused without noticeable loss of activity.Hence this paper presents a simple and practical method for the synthesis of stilbenes, butyl cinnamates, arylacetylenes and biaryls.

Key words: Polymeric palladium catalyst, Sulfur phosphine mixed bidentate palladium(0) complex, Cross coupling reaction, Catalytic property

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