Gold-catalyzed glycosidations: unusual cleavage of the interglycosidic bond while studying the armed/disarmed effect of propargyl glycosides
作者:Abhijeet K. Kayastha、Srinivas Hotha
DOI:10.1016/j.tetlet.2010.07.157
日期:2010.10
Armed/disarmed effect of propargyl glycosides in the presence of AuBr3 is studied. Observed that oxophilic AuBr3 cleaves interglycosidic bond of an armed disaccharide resulting in the formation of a disaccharide and a 1,6-anhydro sugar. Trisaccharides were obtained after fine tuning the reactivity of the glycosyldonor with different protecting groups.