Process for the preparation of aryloxybenzoic acids containing a sulfonamide group
US4874846A · kind A · utility
2Cited by
6References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 1987 |
| Grant date | Oct 17, 1989 |
| Priority date | — |
| Expiry date | May 26, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for the preparation of aryloxy-benzoic acids containing a sulphonamide group by the direct reaction of a phenoxy-benzoic acid with a sulphonamide, in the presence of a halogenating agent such as P(O)Cl.sub.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.