First Direct Glycosylation of Unprotected Nonreducing Mono- and Disaccharides
作者:Andreas Steinmann、Julian Thimm、Joachim Thiem
DOI:10.1002/ejoc.200700504
日期:2007.11
glycosyl acceptors is reported by random glycosylation leading to all possible regioisomers. For such systems conventional glycosylationmethods such as Koenigs–Knorr glycosylation, Schmidt's trichloroacetimidate glycosylation and reactions employing glycosyl fluoride donors fail entirely. Starting from unprotected nonreducing saccharides, the glycosylation of β-glucosylated and β-galactosylated monosaccharides