One-pot preparation of carbamoyl benzotriazoles and their applications in the preparation of ureas, hydrazinecarboxamides and carbamic esters
作者:Hui Mao、Huili Liu、Yawei Tu、Zhiyun Zhong、Xin Lv、Xiaoxia Wang
DOI:10.2298/jsc150126069m
日期:——
synthesized in one-pot from carboxylic acids, diphenylphosphorazidate (DPPA) and benzotriazole (BtH). The reactivity and applications of carbamoyl benzotriazoles were also explored. Carbamoyl benzotriazoles react smoothly with amino acids, hydrazines and alcohols respectively, thus providing facile access to the corresponding ureas, hydrazinecarboxamides and carbamicesters in good to excellent yields