Process for preparing pyridine carboxylic acid esters

Details Process for preparing pyridine carboxylic acid esters Process for preparing pyridine carboxylic acid esters

1988-03-02

1989-10-03

Lee, Mary C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546321, C07D21308, C07D21178

Patent

active

048718599

ABSTRACT:
A novel method is disclosed for the preparation of 2,3-pyridine-dicarboxylates by the reaction of a ketoester such as dimethyl oxalacetate with an .alpha.,.beta.-unsaturated aldehyde or ketone such as 2-ethylacrolein and at least 1 molar equivalent of ammonium salt in suitable solvent utilizing a dehydrogenation catalyst such as palladium on carbon.

REFERENCES:
patent: 4169951 (1979-10-01), Beschke et al.
patent: 4723011 (1988-02-01), Doehner, Jr.
Bouvier, Bull. et al, Soc. Chim. Fr., pp. 711-712, (1986).

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