Process for the preparation of 2-amino-6-nitrobenzothiazole

Details Process for the preparation of 2-amino-6-nitrobenzothiazole Process for the preparation of 2-amino-6-nitrobenzothiazole

1982-04-14

1984-05-08

Gerstl, Robert

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548158, C07D27782

Patent

active

044476175

ABSTRACT:
Disclosed is a novel process for the preparation of 2-amino-6-nitrobenzothiazole which comprises contacting 2-mercapto-6-nitrobenzothiazole with hydrogen peroxide in the presence of ammonia. The reaction is conveniently conducted in an aqueous medium. The mole ratio of hydrogen peroxide to mercaptan is preferably about 4:1 and the reaction is conducted at a temperature of about 50.degree. to 100.degree. C.

REFERENCES:
patent: 3781297 (1983-02-01), Pawellek
Metzger, Thiazoles and its Derivatives, Part 2, pp. 392-393, (1979).

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