Process for producing oxygen-containing cyclic fluoro compound
US4116977A · kind A · utility
4Cited by
1References
9Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 5, 1976 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Aug 5, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An oxygen-containing cyclicfluoro compound selected from the group consisting of a perfluorolactone having the formula ##STR1## a perfluorocyclic ether having the formula ##STR2## and mixtures thereof is produced by reacting an .alpha.,.omega.-diiodoperfluoroalkane having the formula EQU I (CF.sub.2).sub.n I with fuming sulfuric acid, wherein n is all formulas ranges from 3 to 5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.