Process for producing fluoromethyl hexafluoroisopropyl ether
US8865946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2010 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Feb 13, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is provided according to the present invention a process for producing fluoromethyl hexafluoroisopropyl ether ((CF3)2CH—O—CH2F), including: reacting bisfluoromethyl ether with hexafluoroisopropyl alcohol in a solvent substantially immiscible with hydrogen fluoride in the presence of a catalytic amount of a strong acid selected from sulfuric acid and any other acids stronger in acidity than sulfuric acid. The process of the present invention enables industrial production of the fluoromethyl hexafluoroisopropyl ether without using hydrogen fluoride or a large amount of sulfuric acid and thereby without causing a large amount of waste as a by-product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.