Silver(I)‐Catalyzed
<i>N</i>
‐Trifluoroethylation of Anilines and
<i>O</i>
‐Trifluoroethylation of Amides with 2,2,2‐Trifluorodiazoethane
作者:Haiqing Luo、Guojiao Wu、Yan Zhang、Jianbo Wang
DOI:10.1002/anie.201507219
日期:2015.11.23
A straightforward N‐trifluoroethylation of anilines has been developed based on silver‐catalyzed NH insertions with 2,2,2‐trifluorodiazoethane (CF3CHN2). Mechanistically, the reaction is proposed to involve migratory insertion of a silver carbene as the key step. In contrast, when amides are employed as the substrates under similar reaction conditions, O‐trifluoroethylation occurs to afford trifluoroethyl
基于银催化的带有2,2,2-三氟重氮乙烷(CF 3 CHN 2)的NH插入,已经开发了一种直接的苯胺N-三氟乙基化方法。从机理上讲,提出该反应涉及迁移卡宾银作为关键步骤。相反,当酰胺在相似的反应条件下用作底物时,发生O-三氟乙基化反应生成三氟乙基酰亚胺。