Hydrocarbonylation/carbonylation of alkyl carboxylates
US4431835A · kind A · utility
9Cited by
3References
24Claims
0Family size
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Key dates
| Filing date | Jul 6, 1981 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Jul 6, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Alkyl carboxylates are hydrocarbonylated and/or carbonylated with carbon monoxide and hydrogen, in an aqueous medium, and in the presence of a catalytically effective amount of a catalyst system comprising (i) ruthenium, (ii) cobalt, (iii) at least one iodine-containing promoter, and (iv) chromium. The subject hydrocarbonylation/carbonylation is admirably well suited, e.g., for the preparation of acetaldehyde, ethanol, ethyl acetate and acetic acid, especially from a methyl carboxylate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.