Preparation of 2-(4-aminophenyl)benzothiazole compounds

Details Preparation of 2-(4-aminophenyl)benzothiazole compounds Preparation of 2-(4-aminophenyl)benzothiazole compounds

1993-07-30

1994-12-06

Brust, Joseph Paul

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548178, C07D27782

Patent

active

053712323

ABSTRACT:
A process for preparing a compound of the formula I ##STR1## where R.sup.1 to R.sup.4 are each, independently of one another, hydrogen, alkyl, alkoxy, hydroxyl or halogen, comprises reacting a compound of the formula II ##STR2## with a compound of the formula III ##STR3## in the presence of sulfur or a sulfur donor at elevated temperature. The compounds prepared according to the invention are suitable, for example, as diazo components.

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