Preparation of 2,4-dihydroxybenzoic acid

Details Preparation of 2,4-dihydroxybenzoic acid Preparation of 2,4-dihydroxybenzoic acid

1989-09-01

1991-02-26

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

562423, C07C 5715

Patent

active

049963546

ABSTRACT:
2,4-Dihydroxybenzoic acid is prepared in a solids mixer by reacting resorcinol with an alkali metal bicarbonate and/or alklai metal carbonate in a carbon dioxide atmosphere using as the alkali metal bicarbonate or alkali metal carbonate a mixture of the corresponding sodium and potassium salts.

REFERENCES:
The Journal of Organic Chemistry, vol. 19, 1954, pp. 510-514, Ogden Baine, et al., "A Study of the Kolbe-Schmitt Reaction, II., The Carbonation of Phenols".
Monatshefte Fur Chemie, vol. 81, 1950, pp. 1071-1091, F. Wessely, et al., "Zur Kenntnis Der Carboxylierung Von Phenolen".
Journal of Organic Chemistry, vol. 15, 1950, pp. 233-236, Don Cameron, et al., "The Kolbe-Schmitt Reaction. I. Variations in the Carbonation of p-Cresol".
Chemical Reviews, vol. 57, 1957, pp. 583-620, A. S. Lindsey, et al., "The Kolbe-Schmitt Reaction".

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