Process for preparing halogenated hydrocarbons
US6500993B1 · kind B1 · utility
6Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1999 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Nov 3, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/383
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for preparing halogenated hydrocarbons, comprising at least 3 carbon atoms, by catalytic telomerization between a haloalkane and an olefin in the presence of an amine with a high boiling point as co-catalyst. 1,1,1,3,3-Pentachloropropane and 1,1,1,3,3-pentachlorobutane are thus prepared under mild conditions in good yield and the catalyst/co-catalyst system can be easily separated by distillation and recycled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.