Process for the production of pure white 2-chloronicotinic acid

Details Process for the production of pure white 2-chloronicotinic acid Process for the production of pure white 2-chloronicotinic acid

1977-04-04

1979-03-13

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21355

Patent

active

041442385

ABSTRACT:
The process for the production of 2-chloronicotinic acid from nicotinic acid-N-oxide, characterized in that the 2-chloronicotinic acid chloride is distilled off from the reaction mixture and the distillate is allowed to flow into water at a temperature of 40.degree. to 100.degree. C. The 2-chloronicotinic acid chloride is hydrolized to the 2-chloronicotinic acid, which precipitates in a pure white crystalline form.

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