Direct Amidation of Carboxylic Acids with Nitroarenes
作者:Shao-Peng Wang、Chi Wai Cheung、Jun-An Ma
DOI:10.1021/acs.joc.9b02068
日期:2019.11.1
N-Aryl amides are an important class of compounds in pharmaceutical and agrochemical chemistry. Rapid and low-cost synthesis of N-aryl amides remains in high demand. Herein, we disclose an operationally simple process to access N-aryl amides directly from readily available nitroarenes and carboxylicacids as coupling substrates. This method involves the in situ activation of carboxylicacids to acyloxyphosphonium
Potassium Carbonate Promoted C–N Coupling Reaction between Benzamides and Aryl Iodides
作者:Songlin Zhang、Fei Huang、San Wu、Weiye Hu
DOI:10.1055/s-0036-1591843
日期:2018.3
benzamides promoted by potassium carbonate in the presence of DMEDA was developed. The reaction was carried out without addition of any transition-metal catalyst to afford a variety of N-arylated products in moderate to good yields (up to 97%). A practical and efficient method for N-arylation of benzamides promoted by potassium carbonate in the presence of DMEDA was developed. The reaction was carried out
An efficient iron-catalyzed synthesis of N-aryl amides from N‑methoxy amides and arylboronic acids is developed. FeCl3 is used as the sole catalyst for the cross-coupling reaction between N‑methoxy amides and arylboronic acids without any other additives, and the corresponding N-aryl amides are obtained in moderate to excellent yields.