Rhenium-mediated dehydrogenative silylation and highly regioselective hydrosilylation of nitrile substituted olefins

• Hydrosilylation of various nitrile groups substituted olefins.
• Rhenium (I) complex [Re(CH3CN)3Br2(NO)] provides high regioselectivity of up to 94% in the catalysis.
• A possible reaction mechanism for the hydrosilylation is presented.

The rhenium (I) complex [Re(CH3CN)3Br2(NO)] catalyzes the homogeneous hydrosilylation of a variety of substituted acrylonitriles, which were converted into the corresponding silyl-substituted alkanes with high regioselectivity of up to 94%. The products were analyzed by 1H NMR and GC–MS. A rhenium specific mechanism is proposed for the hydrosilylation of olefins.

[Re(CH3CN)3Br2(NO)] was found to be an effective catalyst for highly selective dehydrogenative silylation reactions and the reduction of acrylonitrile and its derivatives.Figure optionsDownload as PowerPoint slide