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The catalytic reactions between monosilane or disilane and 1-hexene or 1,5-hexadiene were studied. The reactions with monosilane gave the silylated compounds in the presence of a platinum complex, LiAlH 4 and a radical initiator. In the reactions with disilane, the same silylated compounds were produced in the presence of a platinum complex as in the reaction with monosilane, and disilanylated compounds were obtained using LiAlH 4 and a radical initiator. The reaction mechanisms are discussed.

The hydride-induced carbonylation of organoboranes proceeds via alkali metal trialkylborohydride intermediates regardless of the complex metal hydride used. Apparent variations in alkyl group migratory aptitudes observed previously, which were attributed to differences in complex hydride steric requirements, evidently arise instead from selective formation of products that are difficult to oxidize.