Stereoselective Synthesis of (E)- and (Z)-Triethoxy(vinyl-d2)silanes by Hydrosilylation of Acetylene-d2

The hydrosilylation of deuterated acetylene with triethoxysilane can be directed to the synthesis of either cis or trans triethoxy(vinyl-d2)silanes by an appropriate choice of metal catalyst. In addition, we have demonstrated the viability of designing hydrosilylation−arylation sequential processes in which acetylene can be converted into styrenes or stilbenes using the same Pd catalyst for both reactions.