聚-4-氧杂-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  

Synthesis of Poly-4-oxa-6,7-dimethylselenoheptylsiloxane Palladium(0) Complex and Its Catalytic Properties

作　　者：蔡明中[1] 赵红[2] 黄义争[1] 

机构地区：[1]江西师范大学化学学院,南昌330027 [2]上饶师范学院化学系,上饶334000

出　　处：《有机化学》2003年第6期555-558,共4页Chinese Journal of Organic Chemistry

基　　金：江西省跨世纪人才基金 (No.980 30 2 );自然科学基金 (No .0 1 0 30 7)资助项目 .

摘　　要：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 ( 0 )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 .A silica-supported poly-4-oxa-6,7-dimethylselenoheptylsiloxane palladium(0) 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(0) 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(0) catalyst is stable and can be reused without noticeable loss of activity.

关 键 词：聚-4-氧杂-6 7-二甲硒基庚基硅氧烷钯(0)配合物 合成 催化性能 催化剂 双齿硒钯配合物 立体选择合成 Heck芳基化 

分 类 号：O641.4[理学—物理化学]