Process for making 2-hydroxymandelic acid and 2-hydroxybenzaldeh

Details Process for making 2-hydroxymandelic acid and 2-hydroxybenzaldeh Process for making 2-hydroxymandelic acid and 2-hydroxybenzaldeh

1992-10-08

1993-09-28

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

568432, 568435, C07C 5948, C07C 4500

Patent

active

052488160

ABSTRACT:
A method for the preparation of a 2-hydroxymandelic acid of the formula ##STR1## wherein R represents an alkyl radical containing from 7 to 12 carbon atoms which comprises reacting glyoxylic acid with a phenol of the formula: ##STR2## under acid conditions. Oxidation of the 2-hydroxymandelic acid to the corresponding 2-hydroxybenzaldehyde is also described.

REFERENCES:
patent: 3867434 (1975-02-01), Diamond
patent: 3954808 (1976-05-01), Elliott et al.
patent: 4163759 (1979-08-01), Bauer et al.
patent: 4339602 (1982-07-01), Schouteeten et al.
patent: 4855323 (1989-08-01), Wess et al.
patent: 5004754 (1991-04-01), Fortin, Jr. et al.

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