report a mild meta-selective C–H alkylation of these phenols, which is enabled by a cascade of oxidative dearomatization – radical addition – rearomatization process. The method is compatible with reactive functional groups on the parent arenol, such as olefins and halides. Primary, secondary, and teriary alkyl groups can be used, the source of which is most commonly an alkylborane. This process is operationally
儿茶酚单醚是一类重要的
酚类。它们存在于许多药物、调味剂、香
水中,并用于制备多种药物。在此,我们报告了这些
酚的温和间位选择性 C-H 烷基化,这是通过氧化脱芳构化 - 自由基加成 - 重构化过程的级联反应实现的。该方法与母体芳醇上的反应性官能团兼容,例如烯烃和卤化物。可以使用伯、仲和叔烷基,其来源最常见的是烷基
硼烷。该过程操作简单,不需要加热并且通常以良好的产率进行。