Process for producing meta-phenoxybenzoic acids and esters
US4314070A · kind A · utility
1Cited by
2References
13Claims
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Key dates
| Filing date | May 14, 1980 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | May 14, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/92
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved process for producing meta-phenoxy benzoic acids and their lower alkyl esters in improved yields and with higher selectivity by reacting an alkali metal phenate with a lower alkyl ester of meta-halobenzoic acid in the presence of a copper sulfate catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.