Manufacturing method for 2-hydroxynaphthalene-6-carboxylic acid

Details Manufacturing method for 2-hydroxynaphthalene-6-carboxylic acid Manufacturing method for 2-hydroxynaphthalene-6-carboxylic acid

1990-04-12

1991-04-30

Gray, Bruce

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5115

Patent

active

050119842

ABSTRACT:
The present invention provides a production of 2-hydroxynaphthalene-6-carboxylic acid improved in the yield and the selective ratio, in which .beta.-naphthol and water formed in the reaction system are eliminated therefrom through the reaction.

REFERENCES:
patent: 1593816 (1926-07-01), Andre
patent: 4020102 (1977-04-01), Quadbeck-Seeger et al.
patent: 4287357 (1981-09-01), Mueller et al.
patent: 4329494 (1982-05-01), Montgomery
patent: 4345094 (1982-08-01), Mueller et al.
patent: 4345095 (1982-08-01), Mueller et al.

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