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有机化学
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有机化学 ›› 2003, Vol. 23 ›› Issue (6): 555-558. 上一篇    下一篇

研究论文

聚-4-氧杂0-6，7-二甲硒基庚基硅氧烷钯（0）配合物的合成及其催化性能研究

蔡明中;赵红;黄义争   

  1. 江西师范大学化学学院;上饶师范学院化学系
  • 发布日期:2003-06-25

Synthesis of Poly-4-oxa-6,7-dimethylselenoheptylsiloxane Palladium (O) Complex and Its Catalytic Properties

Cai Mingzhong;Zhao Hong;Huang Yizheng   

  1. Institute of Chemistry,Jiangxi Normal University;Department of Chemistry,Shangrao Techers' College
  • Published:2003-06-25

PDF

541

被引次数

7

4-氧杂-6，7-二氯庚基三甲氧基硅烷依次与气相法二氧化硅、甲硒基钠、氯化 钯作用，然后用水合肼还原，合成了二氧化硅负载的聚-4-氧杂，6，7-二甲硒基庚 基硅氧烷钯(O)配合物．该配合物是苯乙烯及丙烯酸的Heck芳基化反应的有效催化 剂，为立体选择性地合成各种取代的反式-1，2-二苯乙烯及反式肉桂酸提供了简便 且实用的新方法

关键词: 硅烷 P, 二氧化硅, 有机硒化合物, 立体选择性, 水合肼, 苯乙烯, 丙烯酸

A silica-supported poly-4-oxa-6,7-dimethylselenoheptylsiloxane palladium(O) complex has been prepared from 4-oxa-6,7- dichloroheptyltrimethoxysilane via immobilization on fume silica, followed by reacting with sodium methylselenolate and palladium chloride, and then reducting with hydrazine hydrate. A possible structure pattern of the polymeric palladium(O) complex has been suggested. The title complex exhibits high activity and stereoselectivity in Heck arylation of styrene or acrylic acid with aryl iodides. This polymeric palladium(O) catalyst is stable and can be reused without noticeable loss of activity.

Key words: SILANE P;SILICON DIOXIDE;ORGANO SELENIUM COMPOUNDS;STEREOSELECTIVITY, HYDRAZINE HYDRATE;STYRENE;ACRYLIC ACID

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