Preparation of saturated aliphatic, cycloaliphatic and araliphatic aldehydes
US4273945A · kind A · utility
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2References
3Claims
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Key dates
| Filing date | Jul 5, 1979 |
| Grant date | Jun 16, 1981 |
| Priority date | — |
| Expiry date | Jul 5, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/62
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Saturated aliphatic, cycloaliphatic and araliphatic aldehydes are prepared by selective hydrogenation of the corresponding olefinically unsaturated aldehydes with hydrogen in the liquid phase over a palladium-containing catalyst, using a catalyst system in which the active constituents are from 2 to 90% by weight of palladium and from 10 to 98% by weight of an oxide or a salt of a rare earth metal or of a mixture of different oxides and/or salts of this type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.