Method for fluorinating a compound comprising a halosulphonyl or dihalophosphonyl group
US7253317B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Apr 23, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a fluorination process for producing fluorinated compounds.The process consists in reacting a compound (I) corresponding to the formulawith an ionic fluoride of a monovalent cation. M represents H, an alkali metal, a quaternary phosphonium group or a quaternary ammonium group. Y represents SO2 and m is 1, or else Y is PO and m is 2. Z represents CR2, N or P. R1 represents an electron-withdrawing group which has a Hammet σP parameter of greater than 0.4. R2 represents a carbonaceous and/or electron-withdrawing group. X represents a halogen other than a fluorine.The fluorinated compounds obtained are of use in particular as electrolytes in lithium batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.