Preparation of sodium fluoroalcoholates
US5260494A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1993 |
| Grant date | Nov 9, 1993 |
| Priority date | — |
| Expiry date | Feb 25, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/76
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The sodium fluoroalcoholates are prepared under conditions resulting in neither reactant nor final product degradation, by (a) reacting, under reflux, the corresponding fluoroalcohols, e.g., the mono-, di- or trifluoroethanols, with sodium methanolate in the presence of a solvent having a boiling point higher than that of methanol and/or a solvent which forms an azeotrope with methanol, and (b) selectively trapping the methanol of reaction, e.g., in a molecular sieve, as it is released into the vapors which evolve upon refluxing the step (a) reaction mixture; the sodium fluoroalcoholates thus produced are well suited for direct reaction with polydichlorophosphazenes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.