Process for fluoro derivative-substituted aryl pnictogens and their oxides
US7285673B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Jun 27, 2005 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Jul 26, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/90
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process to prepare substituted aryl pnictogen derivatives comprising contacting a fluoropolyether or fluoroalkyl primary bromide or iodide, with a pnictogen derivative such as triaryl phosphine, triaryl arsine, or triaryl stibine or triaryl phosphine oxide, triaryl arsine oxide or triaryl stibine oxide, to produce the corresponding fluoropolyether- or fluoroalkyl-substituted aryl phosphine oxide, aryl arsine oxide or aryl stibine oxide; and optionally, contacting the oxide product with a reducing agent to form the corresponding substituted aryl phosphine, arsine or stibine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.