聚γ-(p-二苯膦苯基)丙基硅氧烷钯(Ⅱ)配合物的合成及其催化羰基化性能

Synthesis of Poly γ-(p-diphenylphosphinophenyl) propylsiloxane Palladium(Ⅱ) Complex and Its Catalytic Property for Carbonylation

对 -溴烯丙基苯依次与三乙氧基硅烷加成、二苯膦钾膦化、气相法二氧化硅固载化 ,再与氯化钯反应 ,合成了聚 γ- ( p-二苯膦苯基 )丙基硅氧烷钯 ( )配合物 。

A fume silica bound poly γ ( p diphenylphosphinophenyl)propylsiloxane palladium(Ⅱ) complex was synthesized from 4 bromo 4 allylbenzene via hydrosilylation with triethoxysilane in the presence of tetrakis(triphenylphosphine)platinum complex as catalyst, phosphatization with potassium diphenylphosphide, sequentially, followed by immobilization on fume silica and reaction with palladium chloride. The title complex exhibited good catalytic activity in Heck carbonylation of aryl halides with aniline or butyl alcohol and can be used repeatedly without serious loss of activity. A possible structure pattern of the polymeric palladium complex has been suggested.