Process for preparation of an oxyacetic acid/hydroxyethyl ether compound
US4791224A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1988 |
| Grant date | Dec 13, 1988 |
| Priority date | — |
| Expiry date | Apr 7, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/255
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for the preparation of an aryloxyacetic acid/hydroxyethyl ether by oxidation of aryloxyethanol of the formula: ##STR1## wherein R either individually or independently of one another represents hydrogen, alkyl, cycloalkyl, aryl, aralkyl, alkoxy, cycloalkoxy, aryloxy, halogen, alkylcarbonyl, arylcarbonyl, carboxyl or nitro, or represents a benzene ring fused to the phenyl ring, in an aqueous alkaline reaction medium at a temperature in the range of 0.degree. C. to the boiling point of the reaction medium in the presence of a catalytic amount of a catalyst comprised of palladium, bismuth, and carbon in the presence of a phenol corresponding to the structure: ##STR2## wherein R is as described above and p is 0, 1 or 2, to form the corresponding alkali metal ester/hydroxyethyl ether after catalyst removal the alkali metal ester is contacted with a mineral acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.