Synthesis of <i>p-</i>tolyl<i> </i>3,4-<i>O</i>-isopropylidene-2-<i>O</i>-(methylthiomethyl)-β-<img src='http://www.niscair.res.in/jinfo/smaller.gif' border=0>-fucopyranose

Abstract

639-641Treatment of p-tolyl 3,4-O-isopropylidene-6-deoxy-1-thio-β--galactopyranoside and related compounds with methyl sulfoxide in the presence of acetic anhydride afford the formation of a methylthiomethyl ether namely p-tolyl 3,4-O-isopropylidene-2-O-(methylthiomethyl)-β--fucopyranose in place of the expected 2-keto compound