Carbonylation process for the production of aromatic dicarboxylic acids
US4691050A · kind A · utility
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8Claims
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Assignee
Inventors
Key dates
| Filing date | May 23, 1986 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | May 23, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a process for the preparation of aromatic dicarboxylic acids by the carbonylation of aromatic diiodides. The aromatic diiodides are reacted with carbon monoxide in the presence of a soluble rhodium catalyst in a hydrocarbon acid reaction medium to prepare the aromatic dicarboxylic acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.