Process for coupling telomers of chlorotrifluoroethylene
US4760208A · kind A · utility
2Cited by
7References
7Claims
0Family size
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Key dates
| Filing date | Jun 9, 1983 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Jun 9, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/281
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for coupling two low molecular weight telomers of chlorotrifluoroethylene comprises reacting the telomers in a solvent with an amount of iron sufficient to form a coupled olefin. The olefin can then be fluorinated using a suitable fluorinating agent, such as chlorine trifluoride, to form a saturated product. Preferably, the solvent for the coupling reaction is acetonitrile, and the reaction is conducted under reflux conditions. A small amount of FeCl.sub.2 can optionally be added to the reaction mixture as an initiator for the reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.