Radical cyclization of allyl propargyl ethers and acetals: Application to the stereocontrolled acylation of carbohydrates

Article abstract of DOI:10.1016/S0040-4039(00)74333-4

β-Stannylvinyl radicals are stereospecifically cyclised into olefinic carbohydrates to give vinylstannanes, which are further elaborated to ketones. This sequence allows the stereospecific acylation of unsaturated carbohydrates at C-2 or C-3 in good yield