Process for the preparation of chlorides of carboxylic acids
US4966995A · kind A · utility
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Key dates
| Filing date | Oct 17, 1988 |
| Grant date | Oct 30, 1990 |
| Priority date | — |
| Expiry date | Oct 17, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a new process for the preparation of chlorides of carboxylic acids by reaction of tetrachloroethylene carbonate with a carboxylic acid of formula R(COOH).sub.n at a temperature of between 80.degree. and 160.degree. C. The radical R may be very diverse and n is an integer which can take the values 1 to 4. A solvent is not necessary. A catalyst may be employed. Acyl chlorides of a high purity are obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.