Selective hydrogenation of unsaturated compounds
US4020108A · kind A · utility
4Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1976 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Jun 30, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/62
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In a process for the catalytic hydrogenation of unsaturated compounds, which process is characterizable as employing for the active catalyst a glyoxime complexed with cobalt and a base, referred to as a cobaloxime catalyst, the improvement for obtaining increased conversion and/or yield comprising employing a large excess of the glyoxime complexing agent in the hydrogenation reaction. The invention is particularly applicable to the selective reduction of certain .alpha.,.beta.-unsaturated aliphatic ketones and is described with reference to the highly selective hydrogenation of carvone to dihydrocarvone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.