二氧化硅负载聚-γ-(二苯胂基)丙基硅氧烷钯(0)配合物的合成与催化卤代芳烃的偶联反应  

SYNTHESIS OF SILICA-SUPPORTED POLY-γ-DIPHENYLARSINOPROPYL- SILOXANE PALLADIUM(0) COMPLEX AND ITS CATALYTIC PROPERTIES

作　　者：黄义争[1] 蔡明中[1] 

机构地区：[1]江西师范大学化学学院,南昌330027

出　　处：《高分子学报》2004年第5期731-735,共5页Acta Polymerica Sinica

基　　金：江西省跨世纪人才基金资助项目 (基金号 980 3 0 2 );江西省自然科学基金资助项目 (基金号 0 10 3 0 8)

摘　　要：聚 γ 氯丙基硅氧烷依次与二苯胂钾、氯化钯作用 ,再经水合肼还原 ,合成了二氧化硅负载的聚 γ (二苯胂基 )丙基硅氧烷钯 (0 )配合物 .该钯 (0 )配合物可有效地催化芳基卤化物与烯烃、炔烃、Grignard试剂之间的交叉偶联反应 ,并且可以回收再用多次 ,其活性基本保持不变 .A silica-supported poly-γ-diphenylarsinopropylsiloxane palladium(0) complex was prepared by treatment of poly-γ-chloropropylsiloxane with potassium diphenylarsenide in THF,followed by palladium chloride in acetone,and then the reduction with hydrazine hydrate in ethanol.The X-ray photoelectron spectroscopy(XPS) was used to characterize the palladium complex.It was found that the title complex is an efficient catalyst for the cross coupling reactions of aryl halides with olefins,acetylenes and Grignard reagents.This polymeric palladium(0) complex 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,arylacetylenes and biaryls.

关 键 词：聚-γ-氯丙基硅氧烷 二苯胂钾 氯化钯 水合肼 二氧化硅 二氧化硅负载聚-γ-(二苯胂基)丙基硅氧烷钯配合物 偶联反应 气相法 

分 类 号：O641.4[理学—物理化学] O643.3[理学—化学]