A mild, selective and facile synthesis of vinylsilanes via a recyclable platinum nanoparticle catalysed hydrosilylation of alkynes is reported. Various functionalized alkynes are selectively hydrosilylated to furnish functional β-E vinylsilanes in high yields. The catalytic effectiveness, ease of catalyst recovery and recyclability of the polysiloxane stabilized Pt-nanoparticle catalyst are the major
据报道,通过可回收的
铂纳米颗粒催化
炔烃的温和,选择性和简便地合成
乙烯基硅烷。各种官能化的
炔烃被选择性地氢化
硅烷化,从而以高收率提供官能化的β-E
乙烯基硅烷。聚
硅氧烷稳定的Pt-纳米颗粒催化剂的催化效率,催化剂回收的难易程度和可回收性是这项工作的主要成就。使用电子显微镜和受控中毒实验的详细原位表征支持了Pt纳米颗粒作为活性催化剂的参与。