Notiz zur Synthese von 1-Aryl- und 1-Alkyl-2, 3-dimethyl-chinoxaliniumperchloraten

Some 1-substituted 2, 3-dimethyl-quinoxalinium-perchlorates were synthesized by reaction of butane-2, 3-dion with N-monosubstituted 1,2-diamino-benzenes in strongly acidic solution. 2, 3-dimethyl-4-cyclohexyl-pyrido[2,3-b]pyraziniumperchlorate was obtained from an analogous reaction.