Preparation stereoselective de methyle cetones α-bromees: stereochimie de l'addition d'anions en α d'un groupe sulfone sur des cyclohexanones monocycliques et steroidiques

Article abstract of DOI:10.1139/v82-297

This work describes stereochemical results obtained for the preparation of α-bromomethyl ketones or α-bromoaldehydes starting from monocyclic and steroid cyclohexanones, using the Durst method.In all the cases studied here, the bromine is introduced selectively in the equatorial position.However, for monocyclic compounds, the yields of α-bromocarbonyl compounds are limited by the competitive formation of α-ethylenic carbonyl compounds.