N-haloamidines. VII(2c). 4-Amino-5-chloroimidazoles and 4-amino-5- unsubstituted imidazoles from N-chloro-N'-arylbenzamidines and 1,1- diaminoethenes

Article abstract of DOI:10.1016/0040-4020(96)00365-1

N-chloro-N'-arylbenzamidines react with 1,1-diaminoethenes to give in good yields 4-amino-5-chloroimidazoles. The behaviour of these compounds in some nucleophilic substitution reactions and their reduction to 4-amino 5- unsubstituted imidazoles is reported.