Process for the purification of 2,3-pyridine and quinolinedicarb

Details Process for the purification of 2,3-pyridine and quinolinedicarb Process for the purification of 2,3-pyridine and quinolinedicarb

1991-12-20

1994-01-04

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546168, C07D213803

Patent

active

052761576

ABSTRACT:
The present invention provides a process for the purification of 2,3-pyridine and quinolinedicarboxylic acid diester compounds via extraction with a mineral acid.

REFERENCES:
patent: 4460776 (1992-09-01), Wepplo
patent: 4723011 (1988-02-01), Doehner
patent: 4904816 (1990-02-01), Cevasco et al.
patent: 4997947 (1991-03-01), Szczepanski
Konishi, Chemical Abstracts, 86:139407g May 5, 1977.
Sumi et al., Chemical Abstracts, 70:67660d Sep. 25, 1967.

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