Selective synthesis of E -vinylsilanes and E , E -divinylsilanes via platinum-catalyzed hydrosilylation of alkynes with secondary silanes

-selective hydrosilylation of terminal acetylenes with many secondary silanes (46 examples). Depending on the ratio of the reagent concentrations, the products of mono- or disubstitution are selectively obtained. Moreover, the one-pot sequential hydrosilylation of two different alkynes with secondary silane was also achieved over the same platinum catalyst.