Herbicidal cyanofluorophenoxyphenoxyalkanoic acids and derivatives thereof
US4980494A · kind A · utility
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3References
1Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 8, 1989 |
| Grant date | Dec 25, 1990 |
| Priority date | — |
| Expiry date | Dec 8, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N39/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel 2-(4-(2'-fluoro-4'-cyanophenoxy)-phenoxy)alkanoic acids and agriculturally acceptable derivatives thereof are selective postemergent herbicides for the control of grassy weeds in valuable crops. The novel herbicides are surprisingly selective, i.e., exhibit little or no phytotoxic effects, to wheat, barley and especially rice at concentrations that control undesired weed grasses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.