Highly Efficient Chemoselective Deprotection of <i>O,O</i>-Acetals and <i>O,O</i>-Ketals Catalyzed by Molecular Iodine in Acetone
作者:Jianwei Sun、Yanmei Dong、Liya Cao、Xinyan Wang、Shaozhong Wang、Yuefei Hu
DOI:10.1021/jo0486239
日期:2004.12.1
An extremely convenient method for deprotection of acetals and ketals catalyzed by molecular iodine (10 mol %) in acetone is reported. The protocol achieved the deprotection of acyclic or cyclic O,O-acetals and O,O-ketals in excellent yields within a few minutes under neutral conditions. The double bond, hydroxyl group, and acetate group remained unchanged, and the highly acid-sensitive furyl, tert-butyl