Reactions of S-alkyl-NN-disubstituted thioamide salts. Part 5. Diamidinium salts

Abstract

3-(α-Dialkylaminoarylidene)-1-alkylthiotriazenes (2; R¹= aryl), readily obtainable from thioamide salts, give with iodomethane at room temperature the diamidinium iodides (3)(NN-dialkyl-3-dialkylamino-1,3-diaryl-2-azapropenylideneammonium iodides) in moderate to good yields. Their properties have been investigated and the structure of the corresponding chloride (4; R¹= Ph, R²= Me, A = Cl) has been investigated by X-ray crystal analysis.