Process for the preparation of fluorinated alkanes from alkenes
US4937398A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1988 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Dec 27, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a process for the preparation of luorinated alkanes. The process comprises the step of: reacting an alkene with carbon having fluorine absorbed therein at a temperature and for a time sufficient to form fluorinated alkanes. The alkene used is not perhalogenated at the double-bonded carbons. Preferably, the alkene used is vinylidene fluoride or ethylene. The process produces products such as 1,1,1,2-tetrafluoroethane (known in the art as 134a) which may be used as a refrigerant and 1,1,1-trifluoroethane (known in the art as R143a) and 1,2-difluoroethane (known in the art as R152) which may be used as blowing agents or solvents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.