Process for preparing 1,1,1,3,3-pentafluoropropane
US5608126A · kind A · utility
12Cited by
1References
15Claims
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Key dates
| Filing date | Jun 23, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Jun 23, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/278
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing 1,1,1,3,3-pentafluoropropane, which comprises reacting 1,1-difluoroethylene with dichlorofluoromethane in the presence of a Lewis acid catalyst to form 1,2,2-trihydrodichlorotrifluoropropane and fluorinating the 1,2,2-trihydrodichlorotrifluoropropane with hydrogen fluoride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.