"Regioselective Enzymatic Hydrolysis of Acetylated Pyranosides using Immobilised Lipases. An Easy Chemoenzymatic Synthesis of a and b-D-Glucopyranose Acetates Bearing a Free Secondary C-4 Hydroxyl Group"

regioselective hydrolysis of fylly acetylated pyranosides catalysed by immobilized lipases givs product with a free hydroxyl group in C-6 position in very high yields. Acyl migration from C-4 to 6 positions givs products bearing a free hydroxyl group in C-4