Formation of allylsilanes from Cl2[P(C6H11)3]2Ru C(R)H and vinylsilanes—β-SiR′3 elimination from ruthenacyclobutanes as a terminating step in olefin cross-metathesis

Abstract

Stoichiometric reactions of the Grubbs carbene complex [Cl₂{P(C₆H₁₁)₃} ₂RuC(Ph)H] with vinylsilanes, H₂CC(SiMe_nR_3−n )H (R = Ph, OEt; n = 1, 2, 3), afford metathesis products and allylsilanes formed by β-SiR₃ elimination followed by reductive elimination; the formation of allylsilanes constitutes a terminating step in the Ru-catalysed cross-metathesis of olefins with methylsubstituted vinylsilanes.