Protecting group free glycosylation: one-pot stereocontrolled access to 1,2-<i>trans</i> glycosides and (1→6)-linked disaccharides of 2-acetamido sugars
作者:Xin Qiu、Anna L. Garden、Antony J. Fairbanks
DOI:10.1039/d2sc00222a
日期:——
and acid catalysed reaction with an alcohol as solvent produces the corresponding 1,2-trans-glycosides in good yield. Alternatively, dissolution in an aprotic solvent system and acidic activation in the presence of an excess of an unprotected glycoside as a glycosyl acceptor, results in the stereoselective formation of the corresponding 1,2-trans linked disaccharides without any protectinggroup manipulations