MCM-41-supported bidentate phosphine rhodium complex: An efficient and recyclable heterogeneous catalyst for the hydrosilylation of olefins

Abstract

MCM-41-supported bidentate phosphine rhodium complex (MCM-41-2P-RhCl 3) was conveniently synthesized from commercially available and cheapγ-aminopropyltriethoxysilane via immobilization on MCM-41, followed by reacting with diphenylphosphinomethanol and rhodium chloride. It was found that the title complex is a highly efficient catalyst for the hydrosilylation of olefins with triethoxysilane and can be recovered and recycled by a simple filtration of the reaction solution and used for at least 10 consecutive trials without any decreases in activity. © 2011 SIOC, CAS, Shanghai & WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.