Process for preparing 2-hydroxynaphthalenecarboxylic acids

Details Process for preparing 2-hydroxynaphthalenecarboxylic acids Process for preparing 2-hydroxynaphthalenecarboxylic acids

1978-08-15

1980-12-16

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

562423, 562424, C07C 5115

Patent

active

042399130

ABSTRACT:
A process for preparing 2-hydroxynaphthalenecarboxylic acids which comprises reacting a liquid mixture of 1 mole of an alkali .beta.-naphtholate, 0.05 to 3 moles of .beta.-naphthol, and 0.1 to 5 times the weight of the alkali .beta.-naphtholate of light oil or kerosene with carbon dioxide under a carbon dioxide pressure of not more than 15 kg/cm.sup.2.G at a temperature of at least 180.degree. C.

REFERENCES:
patent: 1593816 (1926-07-01), Andre
patent: 4002678 (1977-01-01), Quadbeck-Seeger et al.
patent: 4020102 (1977-04-01), Quadbeck-Seeger et al.
patent: 4032568 (1977-06-01), Quadbeck-Seeger
patent: 4038309 (1977-07-01), Hoch et al.
BIOS Final Report No. 986, pp. 234-248.
Ullmanns Encyklopadie der Techmischen Chemie, p. 606, 1960.

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