Unsymmetrical tetrasubstituted ureas from tertiary carbamoylimidazole: activation by AlMe3
作者:A. Velavan、S. Sumathi、K. K. Balasubramanian
DOI:10.1039/c2ob25412c
日期:——
An efficient and general method for the synthesis of unsymmetricaltetrasubstitutedureas from carbamoylimidazole is described. The conversion is achieved by the concurrent quarternization of the imidazole nitrogen and activation of amines with AlMe3.