A combination of zinc triflate and pyridine in a nitrile medium was found to act as an effective catalytic system for dehydrogenativesilylation with flexible pieces of terminalalkynes and hydrosilanes, thereby producing diverse alkynylsilanes in high to excellent yields.
Dehydrogenative silylation of terminal alkynes by iridium catalyst
作者:Rie Shimizu、Takamasa Fuchikami
DOI:10.1016/s0040-4039(99)02174-7
日期:2000.2
Dehydrogenativesilylation of terminalalkynes with hydrosilanes proceeds in the presence of iridium catalyst to afford the corresponding silylacetylenes. When phenylacetylene and triethylsilane were heated in dry DME in the presence of Ir4(CO)12–PPh3, (2-phenylethynyl)triethylsilane was obtained in 96% yield with little of hydrosilylated products. The present method is applicable for a variety of