摘要
γ－巯丙基三乙氧基硅烷依次与气相法二氧化硅、氯化钯作用，然后用水合肼还原，合成了新配合物聚γ－巯丙基硅氧烷钯（０）．该配合物是丙烯酰胺及丙烯酸丁酯的Ｈｅｃｋ芳基化反应的有效催化剂，为立体选择性地合成２Ｅ－不饱和酰胺及不饱和酯提供了简便且实用的方法．
A silica supported poly γ mercaptopropylsiloxane palladium(0) complex was prepared from γ mercaptopropyltriethoxysilane and fume silica via hydrolysis, followed by treatment with palladium chloride in acetone and then the reduction with hydrazine hydrate in ethanol. It was found that the title complex is an efficient catalyst for Heck arylation of acrylamide and butyl acrylate. This polymeric palladium(0) catalyst is stable and can be reused without noticeable loss of activity.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1998年第10期1693-1696,共4页
Chemical Journal of Chinese Universities
基金
江西省自然科学基金
关键词
聚合物
催化剂
配合物
Heck芳基化
立体选择
Polymeric palladium catalyst, Sulfur palladium complex, Heck arylation, Stereo selective synthesis
