Selective acetolysis of 6-deoxy-sugar oligosaccharide building blocks governed by the armed–disarmed effect
作者:Emiliano Bedini、Daniela Comegna、Annalida Di Nola、Michelangelo Parrilli
DOI:10.1016/j.tetlet.2008.02.090
日期:2008.4
effect of the arming–disarming protection in the acetolysis of 6-deoxy-sugar oligosaccharides has been for the first time systematically investigated. Starting from the newly synthesized methyl glycosides, the acetolysis conditions employed here afforded 1-O-Ac oligosaccharidesselectively without cleavage of the interglycosidic bonds, if a suitable protecting group pattern was used. Actually, the