N-Phenylpyrazole derivatives
US4496390A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1982 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Jul 15, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D403/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
N-Phenylpyrazole derivatives of the formula: ##STR1## (wherein each of R.sup.5 and R.sup.6 represents a C.sub.1 -C.sub.4 alkyl or alkoxy radical, a trifluoromethyl, trifluoromethoxy, nitro, cyano or primary amino radical, or a fluorine, chlorine or bromine atom, each of R.sup.7, R.sup.8 and R.sup.9 represents a hydrogen atom, a C.sub.1 -C.sub.4 alkyl or alkoxy radical, a trifluoromethyl, trifluoromethoxy, nitro, cyano or primary amino radical or a fluorine, chlorine or bromine atom, or R.sup.5, R.sup.7, R.sup.8 and R.sup.9 each represents a hydrogen atom and R.sup.6 represents a trifluoromethoxy or trifluoromethyl radical, and R.sup.10 represents a cyano radical or substituted carbamoyl radical --CONHR.sup.11, wherein R.sup.11 represents a methyl or ethyl radical) have been found to possess useful herbicidal properties. All such N-phenylpyrazole derivatives with the exception of 5-amino-4-cyano-1-(2,4-dichlorophenyl)pyrazole and 5-amino-4-cyano-1-(4-chloro-2-methylphenyl)pyrazole are new compounds. Herbicidal compositions containing such N-phenylpyrazole derivatives are described and also processes for the preparation of the new compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.