Chemoselective hydrolysis of terminal isopropylidene acetals in acetonitrile using molecular iodine as a mild and efficient catalyst
作者:J.S. Yadav、M. Satyanarayana、S. Raghavendra、E. Balanarsaiah
DOI:10.1016/j.tetlet.2005.10.043
日期:2005.12
A simple, mild and efficient method for deprotection of acetonides in the presence of molecular iodine is described. Acid labile protecting groups such as PMB, OMe, OBn, allyl and propargyl are compatible with the reaction conditions, while TBS, TBDPS, TMS and THP ethers were unstable under the same conditions.
描述了一种在分子碘存在下使丙酮化物脱保护的简单,温和和有效的方法。酸不稳定的保护基(如PMB,OMe,OBn,烯丙基和炔丙基)与反应条件兼容,而TBS,TBDPS,TMS和THP醚在相同条件下不稳定。