Hydrosilylation of non-1-ene with phenylsilane in the presence of yttrium and lutetium bisguanidinate hydride complexes |
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| Authors: | D M Lyubov A S Shavyrin Yu A Kurskii A A Trifonov |
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| Institution: | 1.G. A. Razuvaev Institute of Organometallic Chemistry,Russian Academy of Sciences,Nizhny Novgorod,Russian Federation |
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| Abstract: | Some regularities of hydrosilylation of non-1-ene with phenylsilane catalyzed by yttrium and lutetium bisguanidinate hydride
complexes {(Me3Si)2NC(NR)2]2Ln(μ-H)}2 (Ln = Y, Lu; R = Pri, Cy (Cy is cyclohexyl)) have been studied. The addition of PhSiH3 to the double bond of non-1-ene in the presence of a {(Me3Si)2NC(NPri)2]2Y(μ-H)}2 complex has the first order in olefin and zero order in phenylsilane. This indicates that the insertion of non-1-ene into
the Ln-H bond is a rate determining stage of the process, whereas the metathesis of the Ln-C σ-bond upon the action of phenylsilane
proceeds rapidly. The first example of successive double alkylation of phenylsilane with an olefin catalyzed by a rare-earth
metal complex with the formation of tertiary silane has been discovered. |
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