Manufacture of 4-amino-5-chloro-1-phenylpyridaz-6-one using aque

Details Manufacture of 4-amino-5-chloro-1-phenylpyridaz-6-one using aque Manufacture of 4-amino-5-chloro-1-phenylpyridaz-6-one using aque

1980-09-08

1981-10-27

Berch, Mark L.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C07D23714

Patent

active

042974933

ABSTRACT:
The manufacture of substantially pure 4-amino-5-chloro-1-phenylpyridaz-6-one by reaction of 4,5-dichloro-1-phenylpyridaz-6-one with ammonia in the presence of phenol-4-sulfonic acid.

REFERENCES:
patent: 4237287 (1980-12-01), Motta

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