Visible light accelerated hydrosilylation of alkynes using platinum–[acyclic diaminocarbene] photocatalysts
作者:Jack C. Gee、Beth A. Fuller、Hannah-Marie Lockett、Gita Sedghi、Craig M. Robertson、Konstantin V. Luzyanin
DOI:10.1039/c8cc04287j
日期:——
Platinum–[diaminocarbene] complexes work as transition-metal photocatalysts for the hydrosilylation of alkynes. A catalytic system operates under visible light irradiation (blue LED) enabling the conversion of a range of terminal and internal alkynes to respective vinyl silanes in excellent yields.
The reaction of alkenylsilanes with ozone provides synthetically versatile β-hydroxy or α-formyl silyl peroxides in good yield without normal fission of the C=C bond. The obtained α-formyl silyl peroxides serve as good precursors for the stereochemically defined diol or triol derivatives via nucleophilic addition to the formyl group and reduction of the peroxide moiety.