Use of a ruthenium promoter in a phosphine oxide carbonylation process
US9822054B2 · kind B2 · utility
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3References
18Claims
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Key dates
| Filing date | Jan 18, 2016 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Feb 27, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present technology relates to a rhodium catalyzed carbonylation process of alcohols, ethers, and esters in the presence of phosphine oxide and ruthenium additives to produce carboxylic acids. In some embodiments, the technology provides for an improved method of preparing acetic acid from methyl acetate or methanol using a rhodium catalyst with a phosphine oxide and a ruthenium additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.