A novel fumed silica-supported nitrogenous platinum complex as a highly efficient catalyst for the hydrosilylation of olefins with triethoxysilane

A novel fumed silica-supported nitrogenous platinum complex was conveniently prepared from cheap γ-aminopropyltriethoxysilane via immobilization on fumed silica in toluene, followed by a reaction with hexachloroplatinic acid. The title complex was characterized by fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). It was found that the complex is an efficient and stable catalyst for the hydrosilylation of olefins with triethoxysilane. The title platinum complex could be separated by simple filtration and reused several times without any appreciable loss in the catalytic activity.

A fumed silica-supported nitrogenous platinum complex was prepared from cheap γ-aminopropyltriethoxysilane via immobilization on fumed silica in toluene, followed by a reaction with hexachloroplati acid. And the title platinum complex was used as the catalyst for hydrosilylation of allyl glycidyl ether with triethoxysilane. Figure optionsDownload as PowerPoint slideHighlights
► A novel fumed silica-supported nitrogenous platinum complex has been prepared.
► There is an interaction of NH2 groups combining with Pt metal in ‘SiO2’–NH2–Pt.
► Allyl glycidyl ether react with triethoxysilane.
►  ‘SiO2’–NH2–Pt has high activity for hydrosilylation of olefins with triethoxysilane.