Intramolecular cyclizations of α-stannyl radicals to acylsilanes: regiospecific syntheses of five-membered cyclic silyl enol ethers
Abstract
α-Stannyl radicals generated from acylsilanes 5, 13 and 14 cyclize to give good yields of cyclic silyl enol ethers after sequential cyclizations, radical Brook rearrangements and β-scissions.