Preparation of 1,1,1,3,3-pentachlorobutane and 1,1,1,3,3-pentafluorobutane
US5917098A · kind A · utility
15Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Jan 27, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/278
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1,1,1,3,3-Pentachlorobutane, whose fluorination leads to 1,1,1,3,3-pentafluorobutane, is prepared with high yield and selectivity by addition of carbon tetrachloride to 2-chloropropene in the presence of a copper salt and an amine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.