Аннотация:1,2-Dimethyl-3- (I) and -5-nitropyridinium iodides (II) rearranged in aq. MeNH2 to give 30-50% o- (III) and p-O2NC6H4NHMe, resp. Analogous reaction of II in aq.-alc. alkali gave III in low yield, owing to a competing hydrolytic reaction. I in the presence of Me2NH gave only III, but II gave a mixt. of IV and p-O2NC6H4NMe2. 1-Ethyl-2-methyl-3- and -5-nitropyridinium iodides reacted analogously, but with lower yields.