Production of amine salts of carboxylic acids
US3944598A · kind A · utility
5Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1973 |
| Grant date | Mar 16, 1976 |
| Priority date | — |
| Expiry date | Jun 21, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/54
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Amine salts of aromatic and aliphatic carboxylic acids are produced by hydrolysis of a corresponding nitrile, imide, amide or mixtures thereof in the presence of an amine, and stripping of evolved ammonia. The amine salts may be used in separation of certain isomeric acids, and are useful as intermediates in the production of the corresponding carboxylic acids and derivatives thereof, such as esters and anhydrides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.