Substituted allyl protecting groups can be removed from alcohols using the CeCl3 · 7 H2O/NaI system in refluxing nitromethane in the presence of a scavenger for the allyl iodide. In contrast to this, deprotection of the allyl group proceeds barely in acetonitrile.
在有烯丙基
碘清除剂存在的情况下,在回流的
硝基甲烷中使用
CeCl3 - 7
H2O/NaI 系统可以从醇中去除取代的烯丙基保护基团。与此相反,烯丙基的脱保护作用在
乙腈中几乎无法进行。