Cu(II)-Catalyzed <i>Ortho</i>-C–H Nitration of Aryl Ureas By C–H Functionalization
作者:Chun-Meng Wang、Kai-Xiang Tang、Tian-Hong Gao、Lin Chen、Li-Ping Sun
DOI:10.1021/acs.joc.8b01016
日期:2018.8.3
A novel protocol for the aromatic ortho C–H nitration of aryl ureas with Fe(NO3)3·9H2O is developed. The reaction utilizes CuCl2·2H2O as catalyst and p-TSA as additive, showing good functional group tolerance and furnishing the desired products in moderate to excellent yields.