Process for making 2-hydroxymandelic acid and 2-hydroxybenzaldehydes
US5248816A · kind A · utility
3Cited by
6References
4Claims
0Family size
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Key dates
| Filing date | Oct 8, 1992 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Oct 8, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/367
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
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