The application of intramolecular radical cyclizations of acylsilanes in the regiospecific formation of cyclic silyl enol ethers

Research has been conducted on the acylsilanes with the alpha-stannyl bromide or xanthate functionalities. The preparation of these acylsilanes has been carried out and the results indicate that the generated alpha-stannyl radicals undergo intramolecular cyclizations in producing cyclic silyl enol ethers.