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Abstract

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Paper | Special issue | Vol 42, No. 2, 1996, pp. 795 - 809
Published online:
DOI: 10.3987/COM-95-S87
Rare Earth Salts Promoted Glycosidation of Glycosyl Fluorides

Won-Sup Kim, Shigeru Hosono, Hiroaki Sasai, and Masakatsu Shibasaki

*Faculty of Pharmaceutical Sciences, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan

Abstract

A glycosidation reaction of glycosyl fluorides with free alcohol acceptors has been found to be promoted effectively by using rare earth metal salts, with or without the requirement of usual Lewis acids such as ZnCl2 and Ba(ClO4)2. Moreover, a glycosidation reaction of glycosyl fluorides with trimethylsilyl ethers has been found to be promoted more effectively by using a catalytic amount of rare earth metal perchlorates.

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