作者:Michio Kurosu、Kallolmay Biswas、Prabagaran Narayanasamy、Dean Crick
DOI:10.1055/s-2007-983801
日期:2007.8
An acid- and base-stable protecting group for carboxylic acids is described. The esters of (2,6-dichloro-4-methoxyphenyl)(2,4-dichlorophenyl)methanol are stable to Bronsted and Lewis acids, Bronsted bases, and a wide variety of nucleophiles; however, the esters can be conveniently deprotected by a solvolytic displacement reaction with 20% trifluoroacetic acid.
描述了一种酸和碱稳定的羧酸保护基团。(2,6-二氯-4-甲氧基苯基)(2,4-二氯苯基)甲醇的酯对布朗斯台德和路易斯酸、布朗斯台德碱和多种亲核试剂稳定;然而,可以通过与 20% 三氟乙酸的溶剂分解置换反应方便地对酯进行脱保护。