Process for the preparation of 2,3-pyridine-dicarboxylic acids f

Details Process for the preparation of 2,3-pyridine-dicarboxylic acids f Process for the preparation of 2,3-pyridine-dicarboxylic acids f

1992-08-26

1993-10-05

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546322, 546168, C07D40104

Patent

active

052506940

ABSTRACT:
There is provided a process for the preparation of a 2,3-pyridinedicarboxylic acid from a 3-(2-imidazolin-2-yl)picolinic acid. The 2,3-pyridinedicarboxylic acids are useful in the preparation of herbicidal 2-(2-imidazolin-2-yl)nicotinic and quinoline-3-carboxylic acids, esters and salts.

REFERENCES:
patent: 4460776 (1984-07-01), Wepplo
patent: 4658030 (1987-04-01), Barton et al.
patent: 4798619 (1989-01-01), Los
Chemical Abstracts, vol. 109, No. 3, Abstract 22.968t, p. 620, Jul. 18, 1988.
Brewster, Organic Chemistry, 3rd Edition, p. 238, 1961.

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