作者:Shaofeng Wu、Jianyu Dong、Dan Zhou、Wan Wang、Long Liu、Yongbo Zhou
DOI:10.1021/acs.joc.9b03028
日期:2020.11.20
A H3PO3-catalyzed alkylation of phenols with alkenes is achieved in a facile, efficient, and selective manner. The reaction shows a unique selectivity, i.e., excellent regioselectivity, thorough suppression of overalkylation, without alkylation of a simple phenyl ring, and can selectively provide ortho-, meta-, or para-alkylated phenol derivatives in good to excellent yields. This feature along with
AH 3 PO 3催化的苯酚与烯烃的烷基化反应以简便,有效和选择性的方式实现。该反应显示出独特的选择性,即优异的区域选择性,彻底抑制了过度烷基化,而没有简单的苯环烷基化,并且可以有选择地提供邻位,间位或对位烷基化的苯酚衍生物,收率良好至优异。此功能以及温和的反应条件,敏感的官能团耐受性以及酚类生物活性化合物的按比例放大合成和后期修饰,使其成为酚类修饰的理想且实用的替代品。