Process for the manufacture of 5-sulfamoyl-anthranilic acids
US4001284A · kind A · utility
3Cited by
2References
3Claims
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Inventor
Key dates
| Filing date | Feb 12, 1975 |
| Grant date | Jan 4, 1977 |
| Priority date | — |
| Expiry date | Feb 12, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the manufacture of sulfamoyl anthranilic acids of the general formula I ##STR1## in which Ph is phenyl substituted with 1 or 2 halogen atoms, alkyl groups or etherified hydroxy groups, and R is aralkyl, heteroaralkyl or cycloalkyl-alkyl, unsaturated in the aliphatic moiety, including oxygen or sulfur and/or substituted with halogen, alkyl or alkoxy in the aromatic moiety, by reacting carboxylic acids with at least one mol-equivalent of an amine EQU (R--NH.sub.2) at a temperature above 120.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.