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Process for the preparation of tris(perfluoroalkyl)phosphine oxides
US8962892B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8962892-B2 |
| Application number | US-201113583665-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 17, 2011 |
| Priority date | Mar 11, 2010 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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The invention relates to a process for the preparation of tris(perfluoroalkyl)phosphine oxides by reaction of tris(perfluoroalkyl)difluorophosphorane with alkaline-earth metal oxides, alkaline-earth metal carbonates, zinc oxide, copper(I) oxide, copper(II) oxide, silver oxide, mercury(II) oxide, cadmium oxide or cadmium carbonate.
First claim
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The invention claimed is: 1. A process for the preparation of a compound of formula (I) (C x F 2x+1 ) 3 P(O) (I), where x is 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12, said process comprising: reacting a compound of formula (II) (C x F 2x−1 ) 3 PF 2 (II), where x has one of the meanings indicated above, with an alkaline-earth metal oxide, an alkaline-earth metal carbonate, zinc oxide, copper(I) oxide, copper(II) oxide, silver oxide, mercury(II) ox…
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- C07F9/535Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
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- What does patent US8962892B2 cover?
- The invention relates to a process for the preparation of tris(perfluoroalkyl)phosphine oxides by reaction of tris(perfluoroalkyl)difluorophosphorane with alkaline-earth metal oxides, alkaline-earth metal carbonates, zinc oxide, copper(I) oxide, copper(II) oxide, silver oxide, mercury(II) oxide, cadmium oxide or cadmium carbonate.
- Who is the assignee on this patent?
- Ignatyev Nikolai Mykola, Wiebe Waldemar, Willner Helge, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C07F9/535. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).