Abstract
A novel and stereocontrolled glycosidation of 3,4,6-tri-O-acetyl-d-glucal with various alcohols to give the corresponding 2,3-unsaturated glycopyranosides using [bmim]Cl–1.5FeCl3 based ionic liquid is presented. This ionic liquid has proved to be an efficient reaction medium, playing a dual role of a catalyst as well as of a solvent. Salient features of this simple methodology include non-hazardous reaction conditions, good yields in short reaction times and high anomeric selectivity.
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