Process for preparing .alpha.-chloro-.alpha.-oximino-4-hydroxyac

Details Process for preparing .alpha.-chloro-.alpha.-oximino-4-hydroxyac Process for preparing .alpha.-chloro-.alpha.-oximino-4-hydroxyac

1993-02-16

1994-03-08

Dees, Jose G.

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

Organic compounds

Imidic acid halides

C07C 5300

Patent

active

052929450

ABSTRACT:
A process for the preparation of .alpha.-chloro-.alpha.-oximino-4-hydroxyacetophenone by reacting nitrosyl chloride with a mixture of 4-hydroxyacetophenone and a strong acid catalyst such as hydrogen chloride is disclosed. The nitrosyl chloride is introduced as a gas into the reactor to contact 4-hydroxyacetophenone and said acid catalyst dissolved in a solvent therein.

REFERENCES:
patent: 2320234 (1940-04-01), Hartung et al.
patent: 3778475 (1973-12-01), Jakob
patent: 3794620 (1974-02-01), Bateman
patent: 3914267 (1975-10-01), Rennie et al.
patent: 4910338 (1990-03-01), Fruchey

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