New syntheses of C-mercuriated sugars and rapid conversion into bromo-sugars by reaction with bromine chloride from sodium bromide and chloramine-T
Abstract
New C-mercuriated sugars have been synthesised via hydroboration–transmetallation sequences; the bis(glycosyl)mercury compound (4) reacts very repidly with bromine chloride generated in situ from sodium bromide and chloramine-T, to give a high isolated yields of bromo-sugar (5)(87%).