Efficient cross-metathesis of divinylsilanes and divinyldisiloxanes, carrying different electron- withdrawing substituents at silicon, with selected olefins in the presence of the first and second generation Grubbs catalyst and Hoveyda–Grubbs catalyst is described. The reaction was proved to be a valuable method for synthesis of unsaturated organosilicon derivatives and a model for the study of synthesis of oligo-and polymeric products via ADMET ...