A Facile Approach to Regioselective 1-O-Deacylation of Peracylated Glycopyranoses

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The regioselective 1-O-deacylation of peracylated glycopyranoses 1a-d with zinc chloride and zinc oxide in THF/MeOH gave the corresponding tetra-O-acylglycopyranoses 2a-d in good yields.
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