Process for the preparation of trifluorodichloroethyl-substituted acids and zinc compounds
US4886879A · kind A · utility
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4Claims
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Key dates
| Filing date | Apr 1, 1988 |
| Grant date | Dec 12, 1989 |
| Priority date | — |
| Expiry date | Apr 1, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F3/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Zinc compounds of formula II EQU CF.sub.3 CCl.sub.2 ZnCl.cndot.yL (II) wherein y is 1 or 2 and L is a solvent ligand selected from the group of the N-disubstituted acid amides, N-substituted lactams and the organic sulfoxides, are suitable for reaction with CO.sub.2, COS or SO.sub.2 to give, after working up, the acids of formula I EQU CF.sub.3 CCl.sub.2 --X (I) wherein X is --CO.sub.2 H, --CSOH or --SO.sub.2 H, in good yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.