Allyl-and vinylsilanes are important organometallics in synthetic organic chemistry, because of their unique stability, reactivity, and functional group tolerance, which make them synthetically attractive.[1] Intermolecular silylmetalation of alkynes, dienes, allenes, and alkenes [1d, 2] constitutes an excellent method for construction of the above compounds. However, controlling the regioselectivity in the silylmetalation of unsaturated CÀC bonds ...