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  

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

作　　者：胡荣华[1] 李海根[1] 蔡明中[1] 

机构地区：[1]江西师范大学化学学院

出　　处：《高等学校化学学报》2003年第11期2073-2076,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 0 0 62 0 0 2 );江西省自然科学基金 (批准号 :0 10 3 12 )资助

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 .A silica-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.

关 键 词：二氧化硅 聚-4-硫杂-6-二苯膦己基硅氧烷钯(0)配合物 合成 催化性能 钯催化剂 交叉偶联反应 

分 类 号：O643.36[理学—物理化学]