Process for producing imine compounds
US4130586A · kind A · utility
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8Claims
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Key dates
| Filing date | Aug 25, 1977 |
| Grant date | Dec 19, 1978 |
| Priority date | — |
| Expiry date | Aug 25, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C249/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An imine compound is produced by reacting a benzophenone with ammonia in the presence of 0.01 to 10% by weight of a carboxylic acid as a catalyst at a reaction temperature of 50.degree. to 350.degree. C on the basis of benzophenone. Ammonia is fed to the reaction system continuously under a pressure of 2 to 15 atmospheres. A solvent may be used for the reaction. The catalyst carboxylic acid can be readily recovered and reused without any influence of water formed by the reaction and brings about no problem of corrosion to reactor apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.