A New Catalytic Route for the Activation of sp-Hybridized Carbon–Hydrogen Bonds (original) (raw)

In the last two decades we have developed a new type of transition-metal (TM)-catalyzed reaction of vinyl-substituted organosilicon compounds with olefins, known as a silylative coupling (SC, or trans-silylation; Scheme 1), that is complementary to metathesis. This reaction occurs by cleavage of the = C À H bond of an olefin and the = C À Si bond of a vinylsilane, in contrast to cross-metathesis, which uses the same substrates and also gives the same products (except the gem-isomer), by cleavage of the C=C bond. Various TM complexes (i.e. Ru, Rh, Ir, and Co) containing an MÀH and MÀSi bond initially, or one generated in situ, catalyze this process. )