Construction of Multi-Substituted Benzenes via NHC-Catalyzed Reactions of Carboxylic Esters
作者:Jichang Wu、Chengli Mou、Yonggui Robin Chi
DOI:10.1002/cjoc.201700773
日期:2018.4
A carbene‐catalyzed ester activation reaction for the synthesis of multi‐substituted benzenes is developed. Tetra‐substituted benzene compounds are efficiently synthesized through this methodology. Compared with aldehyde substrates used in previous reports, the ester substrates used here are much more readily available and inexpensive. In addition, the TEMPO oxidant used here is more inexpensive than
开发了用于多取代苯合成的卡宾催化的酯活化反应。通过这种方法可以有效地合成四取代的苯化合物。与先前报道中使用的醛底物相比,此处使用的酯底物更容易获得且便宜。此外,此处使用的TEMPO氧化剂比相关卡宾催化的反应中通常使用的醌便宜。