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.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
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
