Method of making chlorofluoroethers
US6362379B1 · kind B1 · utility
3Cited by
22References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2001 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | May 1, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F20/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method is provided for preparation of chlorofluoroethers ClCF2CFClOR8f and Cl2CFCFClOR8f by direct fluorination of Cl2CHCH2OR8 and Cl3CCH2OR8, respectively, wherein R8 is a C1-C20 alkyl-or acyl-containing group optionally up to 5 ether oxygen atoms and optionally substituted by functional groups and R81, is the corresponding perfluoroalkyl or perfluoracyl-containing group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.