Syntheses of Heterocyclic Compounds of Nitrogen. XCVII

1) Nineteen kinds of Schiff bases were prepared by the application of aromatic aldehydes to alkyl 6-aminobenzothiazolyl-(2) sulfones.2) By the application of dimethylamine, diethylamine, or aniline to benzothiazolyl-(2) sulfochlorides, corresponding sulfonamides were obtained. However, application of ammonia or dimethylamine to 6-nitrobenzothiazolyl-(2) sulfochloride yielded 2-amino-and 2-dimethylamino-6-nitrobenzothiazoles and not the objective 6-nitrobenzothiazolyl-(2)-sulfonamides.