摘要
合成了７，１１－二硒杂苯并－１３－冠－４及其铂配合物，并从底物的性质、反应温度、催化剂用量以及化学气氛四个方面考察了该配合物对烯烃与三乙氧基硅烷的硅氢加成反应的催化特性。与单硒杂冠醚配合物相比，该配合物对某些烯烃的催化活性较高，但催化反应需要的温度也较高．
Under alkaline condition,1,2-diselenolane(1) was reduced by sodium borohydride into sodium 1,3-propanediselenolate,then condensed with 1,2-bis(2'-chloroethyloxy) benzene and diselenacrown ether,2,3-benzo-1,4-dioxa-7,11-diselenacyclotridecyl-2-ene(2)was obtained.The first diselenacrown ether platinum complex(3) was prepared by reacting compound(2) with potassium chloroplatinite,The influencing factors including the nature of substrate,the reaction temperature,the amount of the complex used and the reaction atmosphere on its catalytic activity for the hydrosilylation of olefins by triethoxysilanc were investigated.The experimental data indicated that diselenacrown ether platinum complex was an efficient catalyst for the hydrosilylation;as compared with monoselenacrown ether platinum complex,the former possessed higher catalytic activity for allyl phenyl ether and allyl glycidyl ether,but needed higher reaction temperature.
出处
《高等学校化学学报》
CSCD
北大核心
1994年第7期947-950,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
国家教育委员会博士点基金
关键词
二硒杂冠醚
铂络合物
杂元素冠醚
Diselenacrown ether
Platinum complex
Synthesis
Hydrosilylation catalyst
