Method for producing 3,5,6-trichloro-1H-pyridine-2-on

Details Method for producing 3,5,6-trichloro-1H-pyridine-2-on Method for producing 3,5,6-trichloro-1H-pyridine-2-on

1984-02-27

1985-10-08

Brust, Joseph Paul

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546345, C07D21350

Patent

active

045461902

ABSTRACT:
The compound 3,5,6-trichloro-1H-pyridine-2-on can be produced in technical quantities by passing chlorine gas into the gas space above a solution of 6-chloro-1H-pyridine-2-on in an aqueous carboxylic acid solution and maintaining the reaction temperature between 15.degree. and 30.degree. C. This method permits the production of 3,5,6-trichloro-1H-pyridine-2-on in a one-step process from 2-chloro-6-methoxypyridine.

REFERENCES:
patent: 2951844 (1960-09-01), Shermer
patent: 3357984 (1967-12-01), Smith
patent: 3682938 (1972-08-01), Troxel et al.

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