Method for the dehalogenation of ethers
US4334105A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1980 |
| Grant date | Jun 8, 1982 |
| Priority date | — |
| Expiry date | Aug 8, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/44
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Methods for the dehalogenation of various haloethers are disclosed, comprising providing a haloether having the formula CX'.sub.3 -[CY.sub.2 ].sub.n -O-CZ.sub.2 -CX.sub.3 in which X', Y, Z and X are specifically disclosed combinations of hydrogen, fluorine chlorine and bromine such that the molecule includes at least one reducible group, but where both portions of any ethyl groups present are not reducible. Dehalogenation of these haloethers is carried out by contacting same with a hydrogen donor comprising an amine, preferably a primary or secondary amine or a primary, secondary or tertiary alkanol amine. The amine is preferably used in combination with a catalyst, such as a varivalent metal or a salt thereof, such as copper or a copper salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.