Reactions of Trichlorogermane and Trimethylgermane Etherates with 1,3-Divinyl-1,1,3,3-tetramethyldisiloxane

The effect of the reactant ratio in the reaction of tetramethyldisiloxane with germanium tetrachloride and diethyl ether on the structure and reactivity of the resulting trichlorogermane-diethyl ether complexes was studied, and the products were reacted with 1,1,3,3-tetramethyl-1,3-divinyldisiloxane. The hydrogermylation of 1,1,3,3-tetramethyl-1,3-divinyldisiloxane with trimethylgermane in the presence of Karstedt & apos;s catalyst afforded exclusively the corresponding anti-Markovnikov adducts at one and two double bonds of the substrate.