高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (10): 1693.

• 论文 • 上一篇    下一篇

聚γ-巯丙基硅氧烷钯(0)配合物的合成及催化性能研究

蔡明中, 宋才生   

  1. 江西师范大学化学系, 南昌, 330027
  • 收稿日期:1997-07-28 出版日期:1998-10-24 发布日期:1998-10-24
  • 通讯作者: 蔡明中.男,33岁,副教授,博士.
  • 作者简介:蔡明中.男,33岁,副教授,博士.
  • 基金资助:

    江西省自然科学基金资助课题.

Synthesis of Poly-γ-mercaptopropylsiloxane Palladium(0)Complex and Its Catalytic Properties

CAI Ming-Zhong, SONG Cai-Sheng   

  1. Department of Chemistry, Jiangxi Normal University, Nanchang, 330027
  • Received:1997-07-28 Online:1998-10-24 Published:1998-10-24

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摘要： γ-巯丙基三乙氧基硅烷依次与气相法二氧化硅、氯化钯作用,然后用水合肼还原,合成了新配合物聚γ-巯丙基硅氧烷钯(0).该配合物是丙烯酰胺及丙烯酸丁酯的Heck芳基化反应的有效催化剂,为立体选择性地合成2E-不饱和酰胺及不饱和酯提供了简便且实用的方法.

关键词: 聚合物钯催化剂, 硫钯配合物, Heck芳基化, 立体选择合成

Abstract: Asilica-supported poly γ-mercaptopropylsiloxane palladium(0) complex was prepared from γ-mercaptopropyltriethoxysilane and fume silica via hydrolysis, followed by treatment with palladium chloride in acetone and then the reduction with hydrazine hydrate in ethanol. It was found that the title complex is an efficient catalyst for Heck arylation of acrylamide and butyl acrylate. This polymeric palladium(0) catalyst is stable and can be reused without noticeable loss of activity.

Key words: Polymeric palladium catalyst, Sulfur palladium complex, Heck arylation, Stereo-selective synthesis

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