Process for the preparation of 3-cyano-3,5,5-trimethylcyclohexanone
US4299775A · kind A · utility
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6References
5Claims
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Key dates
| Filing date | Sep 10, 1980 |
| Grant date | Nov 10, 1981 |
| Priority date | — |
| Expiry date | Sep 10, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C255/45
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for the preparation of 3-cyano-3,5,5-trimethylcyclohexanone from isophorone and cyanides, characterized by the fact that an organic phase containing the isophorone and an aqueous phase containing the cyanide are brought into contact in the presence of a catalytic amount of a phase transfer agent, such as quaternary ammonium or phosphonium salts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.