Titanium tetrachloride rapidly anomerizes methyl 2,3,4,6-tetra-O-benzyl-β-d-glucopyranoside in dichloromethane at 25 °C. Evidence for the proposal that the benzyloxymethyl group on C-5 and the ring oxygen of the glucoside cooperate to prompt the reaction is described. The reagent anomerizes the interglycosidic linkage of several disaccharide derivatives.
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Koto et al. (1982) studied this question.
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