PREPARATION OF N-SUBSTITUTED UREAS FROM NITROSOMETHYLUREAS

Abstract

Good yields of N-substituted ureas were obtained by reacting amines with N-nitroso-N-methylurea in aqueous solution. It has been shown that N-nitroso-N-methylurea decomposed into methylnitrosamide and isocyanic acid. Similarly, N-nitroso-N, N′-dimethylurea and amines gave rise to good yields of N-substituted-N′-methylureas.