Oxidative process for the preparation of copper quinolinate

Details Oxidative process for the preparation of copper quinolinate Oxidative process for the preparation of copper quinolinate

1981-02-20

1983-12-13

Berch, Mark L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546321, C07D21387

Patent

active

044206160

ABSTRACT:
A process for the preparation of copper quinolinate in which quinoline is oxidized by hydrogen peroxide in sulfuric acid in the presence of copper sulfate wherein the reaction is carried out at a pressure of less than 400 mm Hg. The reduced pressure enables the reaction to be performed at higher temperatures and with greater control; also the reaction time is shortened and the yield improved.
Copper quinolinate is used to prepare quinolinic acid which is the starting material for some chromogenic materials used in the pressure-sensitive record material field.

REFERENCES:
patent: 2371691 (1945-03-01), Hankinson
patent: 4316026 (1982-02-01), Hatano et al.
Stix et al., Chem. Ber. 65, p11 (1932).

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