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Hydrosilylation

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Grubbs' first-generation Ru metathesis complex catalyses the hydrosilylation of terminal alkynes. The reaction exhibits an interesting selectivity profile that is dependent on the reaction concentration and more importantly on the silane employed.
C. S. Arico, L. R. Cox, Org. Biomol. Chem., 2004, 2, 2558-2562.


C. S. Arico, L. R. Cox, Org. Biomol. Chem., 2004, 2, 2558-2562.


Platinum oxide is a versatile and powerful hydrosilylation catalyst for alkenes. Tolerance of various functional groups (amines, epoxides, nitriles, carbon acids and esters), highly reproducible results and easy removal make this catalyst a useful tool for hydrosilylation.
N. Sabourault, G. Mignani, A. Wagner, C. Mioskowski, Org. Lett., 2002, 4, 2117-2119.


A novel catalytic system for the asymmetric hydrosilylation of aromatic alkenes is described, which leads to silanes in high yields and with excellent enantioselectivity. The reaction works efficiently for a variety of substituted aromatic alkenes, giving access after Tamao oxidation to almost optically pure benzylic alcohols in high yields.
J. F. Jensen, B. Y. Svendsen, T. V. la Cour, H. L. Pedersen, M. Johannsen, J. Am. Chem. Soc., 2002, 124, 4558-4559.


A platinum-catalyzed hydrosilylation of arylacetylenes with trichlorosilane followed by a subsequent second hydrosilylation catalyzed by a chiral monophosphine-palladium complex and an oxidation with hydrogen peroxide gave 1-aryl-1,2-diols of high enantiomeric purity in high yields.
T. Shimada, K. Mukaide, A. Shinohara, J. W. Han, T. Hayashi, J. Am. Chem. Soc., 2002, 124, 1584-1585.