A Highly Stereoselective Synthesis of β-Glucosides from Pentaacylglucopyranose and Alkyl Silyl Ether by the Use of a Catalytic Amount of Active Species Generated from Methyltrichlorosilane and Silver Perchlorate

Abstract
An efficient catalytic β-glycosylation reaction starting from pentaacylglucopyranose and alkyl silyl ether was performed using an active species generated from MeSiCl3 and AgClO4. 1-O-Acetyl-2,3,4,6-tetra-O-pivaloyl-β-D-glucopyranose stereoselectively reacted with alkyl silyl ethers with the assistance of neighboring effect to give the corresponding β-glucosides in high yields.

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