Radical cyclisation of some unsaturated carbohydrate derived acetals
作者:Yves Chapleur、Nadira Moufid
DOI:10.1039/c39890000039
日期:——
Haloacetals derived from pyranosidic allylic alcohols or allylic hemiacetals were stereospecifically cyclized using tributyltin hydride as radical promotor to give fused furanoses; the reaction was also applied to a propargylic glycoside which cyclized readily into a vinylstannane, precursor of methylene furanose.