Herbicidal 2-(phenoxy or phenylthio)-2-(,3,5-triazinyloxy) alkanoic acids
US5232896A · kind A · utility
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16Claims
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Key dates
| Filing date | May 6, 1992 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | May 6, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D239/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
2-(Phenoxy or phenylthio)-2-(pyrimidinyloxy or 1,3,5-triazinyloxy)alkanoic acid compounds, such as ethyl 2-(2-fluorophenoxy)-2-(4,6-dimethylpyrimidin-2-yloxy)-acetate, were prepared by the reaction of a phenol or thiophenol compound with a 2-chloro-2-(pyrimidinyloxy or 1,3,5-triazinyloxy)alkanoate ester compound or by the reaction of a pyrimidinol or 1,3,5-triazinol with a 2-bromo-2-(phenoxy or phenylthio)alkanoate ester. These compounds, and, especially, agriculturally acceptable salts, esters, and amides of these compounds, were found to have herbicidal utility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.