Abstract

Treatment of a variety of protected 2-(trimethylsilyl)ethyl (SE) mono, di and trisaccharide glycosides and hemiacetal sugars with α, α-dichloromethyl methyl ether (DCMME) in the presence of ZnCl 2, SnCl 4 or FeCl 3 in dichloromethane gave their corresponding 1,2-cis glycosyl chlorides in excellent yields.

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