Tris[(1H,1H,2H,2H-perfluoroalkyl) aryl]phoshites and catalytic uses thereof
US6534684B1 · kind B1 · utility
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Key dates
| Filing date | Dec 7, 2001 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | Dec 7, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/822
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for preparing tris[(1H,1H,2H,2H-perfluoroalkyl)aryl]phosphites consists in preparing a grignard reagent from an alkoxyhalogenobenzene, then reacting it with a iodo-1H,1H,2H,2H-perfluoroalkane; transforming the alkoxy function of (1H,1H,2H,2H,2H-perfluoroalkyl)alkoxybenzene obtained into a hydroxy function, then reacting (1H,1H,2H,2H-perfluoroalkyl)hydroxybenzene with PCl3. The invention also concerns fluorinated arylphosphites and their use as transition metal ligand for making catalysts to be used in two-phase catalysis with fluorinated phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.