Synthesis of Poly-4-oxa-6,7-bis(diphenylphosphino) heptyl Siloxanc Rhodium Complex and Its Catalytic Hydrosilylation Behavior

Abstract

Abstract: Poly-4-oxa-6,7-bis(diphenylphosphino)heptyl siloxane rhodium complex was synthesized from 4-oxa-6,7-dichloroheptene-1 via hydrosilylation with trimethoxysilane in the presence of tetrakis (triphenylphosphine)platinum complex as the catalyst, phosphatization with potassium diphenylphos-phide, sequentially, followed by immobilization on fumed silica and then the reaction with rhodium chloride. It exhibited good catalytic activity for the hydrosilylation of olefins, such as decene, do-decene, w-chloroundecene, phenyl allyl ether, allyl benzene, allyl glycidyl ether, styrene, and methyl methacrylate, etc., with triethoxysilane at 90℃. Apossible structure pattern of this silicone-supported bidentate phosphine rhodium complex has been suggested.

Key words: Bidentate phosphine rhodium complex, Hydrosilylation, Supported catalyst, Hydrosilyla- tion catalyst

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Lu Xueran, Zhong Zhenlin, Chen Yuanyin . Synthesis of Poly-4-oxa-6,7-bis(diphenylphosphino) heptyl Siloxanc Rhodium Complex and Its Catalytic Hydrosilylation Behavior[J]. Chem. J. Chinese Universities, 1990, 11(6): 561.

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Synthesis of Poly-4-oxa-6,7-bis(diphenylphosphino) heptyl Siloxanc Rhodium Complex and Its Catalytic Hydrosilylation Behavior

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