Rh(PPh3)3Cl/Tetrakis(Dialkylamino)Phosphonium Salts as Thermoregulated and Recyclable Catalytic System for Hydrosilylation Reaction |
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| Authors: | Diliang Wang Jiayun Li Jiajian Peng Ying Bai Guoqiao Lai |
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| Institution: | Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education , Hangzhou Normal University , Hangzhou, People's Republic of China |
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| Abstract: | Abstract Eleven tetrakis(dialkylamino)phosphonium salts have been prepared and were used as “soft” catalyst supports for the hydrosilylation reaction of styrene with triethoxysilane catalyzed by Rh(PPh3)3Cl. Among the Rh(PPh3)3Cl/tetrakis(dialkylamino)phosphonium salts tested, the best catalytic activity and selectivity in favor of the β-adduct were obtained when {(C4H9)2N]3(C8H17)2N]P}PF6 was used as the support, and Rh(PPh3)3Cl/ {(C4H9)2N]3(C8H17)2N]P}PF6 catalyst system can be reused more than 10 times without noticeable loss of catalytic activity and selectivity. GRAPHICAL ABSTRACT  |
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| Keywords: | Tetrakis(dialkylamino)phosphonium salts hydrosilylation Rh(PPh3)3Cl |
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