Process for the production of phosphorous compounds
US7790923B2 · kind B2 · utility
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10Claims
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Assignee
Inventors
Key dates
| Filing date | Jan 26, 2007 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | May 7, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/1411
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention is directed to a process for the production of certain phosphorous, namely urea, thio-urea and sulphonamide phosphorous compounds. The present invention provides a process for the production of phosphorous compounds which process allows an easy and effective separation of the reaction products from impurities by applying a solid alkaline ion-exchange resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.