Iridium-catalyzed selective para-C-alkylation of anilines/phenols with aryl alkynes
作者:Renshi Luo、Yuqiu Liang、Sen Wang、Jianhua Liao、Lu Ouyang
DOI:10.1016/j.jcat.2023.115184
日期:2023.12
The general protocol for site-specific alkylation of anilines and phenols would provide an ideal strategy for affording densely functionalized aniline and phenol derivatives. Herein, we disclose a new iridium-catalyzed and acid-promoted process for selective para-alkylation of anilines and phenols using aryloxy or alkoxy aryl alkynes as the alkylated sources, delivering a wide range of para-C-alkylated
苯胺和苯酚的位点特异性烷基化的通用方案将为提供密集官能化的苯胺和苯酚衍生物提供理想的策略。在此,我们公开了一种新的铱催化和酸促进的方法,用于使用芳氧基或烷氧基芳基炔作为烷基化源对苯胺和苯酚进行选择性对位烷基化,从而以良好的性能产生各种对C-烷基化苯酚和苯胺。优良的产量。低催化剂负载量(高达0.05 mol%)、合成放大、空气条件下操作以及催化剂回收(5次不失活)证明了其在有机合成中的广阔应用前景。