A novel and facile iodine(III)-mediated approach for C(5)-acetoxylation of 6-hydroxyflavone and 6-hydroxyflavanones
摘要:
Oxidation of 6-hydroxyflavone 1 and 6-hydroxyflavanones 2a-c with iodobenzeric diacetate (IBD) in acetic acid leads to regioselective acetoxylation, thereby providing a novel and convenient route for the synthesis of 5-acetoxylated products. (C) 2004 Published by Elsevier Ltd.