Method for preparing difluoroacetonitrile and the derivatives thereof
US9067869B2 · kind B2 · utility
0Cited by
8References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 2012 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Mar 8, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a method for preparing difluoracetonitrile and the derivatives thereof. The method for preparing difluoroacetonitrile according to the invention is characterized in that it includes reacting halogenodifluoromethane and a source of cyanide anions in an alkaline medium. The invention also relates to the use of difluoroacetonitrile as an intermediate in the manufacture of difluoroacetic acid and the salts, esters, or amide thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.