Regioselective transmonocyanoacetylation of o-phenylenediamine derivatives: simple and efficient synthesis of 2-cyanomethylbenzimidazole derivatives
作者:Yousry A. Ammar、Samir Y. Abbas、Sawsan A. Fouad、Mohamed A. Salem、Mohamed S. A. El-gaby
DOI:10.1007/s13738-018-1541-6
日期:2019.3
A simple and efficient method for the regioselective transmonocyanoacetylation of o-phenylenediamine derivatives was developed using 1-cyanoacetyl-3,5-dimethylpyrazole as a cyanoacetylating agent. This method provided operationally simple and efficient access to a series of N-(2-aminophenyl)-2-cyanoacetamide derivatives under mild conditions with short reaction time. Also, 2-cyanomethylbenzimidazole