The presence in the molecule of 1,2-diamino-4- phenyl-imidazole of four nonequivalent nucleophilic sites provides alternative opportunities in the direction of the reactions with β-bielectrophilic carbonyl reagents, their synthetic precursor and equivalents and opens wide opportunities for the use of their imidazole system in the synthesis of diverse fused heterocyclic compounds. Pri- marily the vicinal diaminoazoles containing an N-amino group were considered in the reactions ...
