Both 5‐aminobenzothiophene and 5‐aminobenz‐1,2,3‐thiadiazole condense readily with 2,4‐dinitrochlorobenzene to give dinitroanilino derivatives which provide after partial reduction the aminonitroanilino derivatives. Treatment of these o‐diamines with the proper reagents affords triazole and imidazole derivatives. Oxidation of 4‐arylazo‐5‐aminobenzothiophene or benz‐1,2,3‐thiadiazole yields the corresponding triazole derivatives.

Die 1‐Thion‐3‐aryliden‐phthalide (I) reagieren mit den Aminen (II) in Essigsäure zu den Arylidenphthalimidinen (III), in Äthanol aber zu den Aminen (IV), die sich in die Imidine (III) überführen lassen.

Substituted salicylanilides are prepared by condensation of phenyl salicylates with amines. Their phenylazo and amino derivatives are also obtained and their properties discussed.

Die Umsetzung von 3‐Nitrophthalsäureanhydrid Q (I) mit Phenylessigsäure (II) liefert die Isomeren (III) und (IV) neben geringen Mengen des Dions (V).