Preparation of benzotriazole

Details Preparation of benzotriazole Preparation of benzotriazole

1980-06-30

1981-11-10

Coughlan, Jr., Paul M.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D24918

Patent

active

042999650

ABSTRACT:
Low temperature process for the preparation of benzotriazole at high solids concentrations by the reaction of orthophenylenediamine, sodium nitrite and acetic acid in an aqueous medium at a temperature in the range of from 5.degree. to 25.degree. C., and neutralizing with caustic to liberate benzotriazole in quantitative yield.

REFERENCES:
patent: 2861078 (1958-11-01), Miller et al.
patent: 3227726 (1966-01-01), Levy
patent: 3334054 (1967-08-01), Howard et al.
patent: 3564001 (1971-02-01), Long

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