Process for the condensation of ketones
US4704478A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1986 |
| Grant date | Nov 3, 1987 |
| Priority date | — |
| Expiry date | Jun 25, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/73
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Two ketone molecules (which can be the same or different) can be condensed together in the presence of hydrogen to produce a higher ketone by contacting the materials to be condensed with a hydrogenation catalyst and with a non-zeolitic molecular sieve, which has in its calcined form an adsorption of isobutane of at least about 2 percent by weight of the non-zeolitic molecular sieve at a partial pressure of 500 torr and a temperature of 20.degree. C. One or both ketones may be generated in situ by dehydrogenation of an alcohol. The non-zeolitic molecular sieves can achieve improved conversions and selectivities as compared with most conventional catalysts for the reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.