Production of 2-carboxyalkyl (phenyl)phosphinic acid
US6320071A · kind A · utility
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17Claims
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Key dates
| Filing date | Feb 17, 2000 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Feb 17, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/301
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Processes for producing 2-carboxyalkyl(phenyl)phosphinic acid comprising hydrolyzing the reaction mixture produced from the reaction of dichloro(phenyl)phosphine with a carboxylic acid in the presence of water, wherein the hydrolysis is conducted with reduced levels of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.