Anomeric alkylations and acylations of unprotected mono- and disaccharides mediated by pyridoneimine in aqueous solutions

Pyridoneimine-mediated site-specific deprotonation of the hemiacetal moiety of several mono-, disaccharides in aq. solutions and the reactions of which with alkylating and acylating agents, leading to alkyl glycosides and sugar esters, is reported.