A Convenient Synthesis of<i>N</i>-Aryl Benzamides by Rhodium-Catalyzed<i>ortho</i>-Amidation and Decarboxylation of Benzoic Acids
作者:Xian-Ying Shi、Ke-Yan Liu、Juan Fan、Xue-Fen Dong、Jun-Fa Wei、Chao-Jun Li
DOI:10.1002/chem.201406031
日期:2015.1.26
The rhodium‐catalyzed amidation of substituted benzoic acids with isocyanates by directed CH functionalization followed by decarboxylation to afford the corresponding N‐aryl benzamides is demonstrated, in which the carboxylate serves as a unique, removable directing group. Notably, less common meta‐substituted N‐aryl benzamides are generated readily from more accessible para‐ or ortho‐substituted