Ether compounds
US4059639A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1976 |
| Grant date | Nov 22, 1977 |
| Priority date | — |
| Expiry date | Jul 14, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C43/123
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This disclosure is directed to novel ethers of the formula: EQU CF.sub.3 CH.sub.a X.sub.b --O--CF.sub.2 CH.sub.c F.sub.d Cl.sub.e wherein X is fluorine, chlorine or bromine, preferably fluorine, a is 1 or 2, b is 0 or 1, a plus b are 2, preferably both a and b being 1, c is 0 or 1, d is 0 to 2, e is 0 to 2, c plus d plus e are 3, preferably each of c, d, and e is 1, and a plus c are 1 or 2, preferably 2, with the proviso that when e is 1 or 2, X is fluorine or bromine, preferably fluorine. The compounds having less than eight fluorine atoms per molecule are useful as anesthetics, and all of the compounds are useful as solvents and dispersants for fluorinated materials. A highly preferred compound useful as an anesthetic is 1,2,2,2-tetrafluoroethyl 1',1',2'-trifluoro-2'-chloroethyl ether.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.