Process for the production of 6-hydroxy-2-naphthoic acid

Details Process for the production of 6-hydroxy-2-naphthoic acid Process for the production of 6-hydroxy-2-naphthoic acid

1981-06-02

1982-08-17

Siegel, Alan

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

Organic compounds

Carboxylic acids and salts thereof

562423, 562424, C07C 5115

Patent

active

043450946

ABSTRACT:
The production of 6-hydroxy-2-naphthoic acid from anhydrous potassium 2-naphthoxide and carbon dioxide is improved by forming a mixture of 0.8-1.2 moles of 2-hydroxynaphthalene per equivalent of potassium base, dehydrating the mixture, adding carbon dioxide at about 20 to 90 psi at about 255.degree.-280.degree. C. and agitating and heating it at said pressure and temperature.

REFERENCES:
patent: 4287357 (1981-09-01), Mueller et al.

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