Novel separation process

Details Novel separation process Novel separation process

1990-08-13

1991-11-19

Lee, Mary C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21518

Patent

active

050668064

ABSTRACT:
A process for the recovery of isomeric pure 7-chloro-quinaldine from isomeric mixtures of chloro-quinaldines comprising dissolving the isomeric mixture of chloro-quinaldines in an organic solvent, adding an aqueous tartaric acid solution to the organic solution to form the tartrate of 7-chloro-quinaldine in crystalline form, recovering the crystals and treating the same with a base to obtain 7-chloro-quinaldine.

REFERENCES:
patent: 4996324 (1991-02-01), Bott et al.

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