Аннотация:Heating pyridinium iodides I (R = Me, R1 = H, 3-, 4-, 5-, 6-Me, 4,6-Me2, 5-Et; R = Et, R1 = H) with (MeNH3)2SO3 gave 40-80% R1C6H4NHR (II, R = Me, R1 = H, 2-, 3-, 4-Me, 3,5-Me2, 4-Et; R = Et, R1 = H) together with 17-70% III. The influence of other ammonium sulfites ((EtNH3)2SO3, (NH4)2SO3) and additives (ZnCl2, NiCl2) on the formation of II and III were studied.