Process for the preparation of aldehydes
US4892976A · kind A · utility
1Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1988 |
| Grant date | Jan 9, 1990 |
| Priority date | — |
| Expiry date | Jul 15, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/49
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The process for the preparation of an aldehyde of formula R--CHO in which R is an alkyl group of C.sub.1 -C.sub.7 comprises according to the invention the reaction on an alkyl formate of formula H--COOR in which R has the meaning given above, of a gas constituted mainly by CO, in the presence of PA1 (a) a catalyst based on a metal chosen from among Rh, Ru, Ir, mixtures of them or a mixture of Rh and/or Ru and/or Ir with Co, Ni or Fe, PA1 (b) a promoter chosen from among iodides and mixtures of covalent compounds of iodine and a phosphine or a tertiary amine, PA1 (c) a solvent consisting of a cyclic N-alkyl amide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.