Preparation of carboxylic acid anhydrides
US4559183A · kind A · utility
20Cited by
12References
8Claims
0Family size
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Key dates
| Filing date | Aug 27, 1984 |
| Grant date | Dec 17, 1985 |
| Priority date | — |
| Expiry date | Aug 27, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/56
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A carboxylic acid anhydride such as acetic anhydride, is prepared from a carboxylate ester or a hydrocarbyl ether in processes comprising the use of a halide, carbon monoxide and a Group VIII noble metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.