Synthesis of 5-substituted 2-nitraminopyrimidines and 2-hydroxyaminopyrimidines
2-Nitraminopyrimidine and its 5-R derivatives (R = Me, Cl, NO2, Ph, p-O2NC6H4) have been prepared by cyclization of nitroguanidine with 2-methyl-3-dimethylaminoacrolein or bis(dimethylamino)trimethinium salts, a