N-Phenylpyrazole derivatives

Chemistry: fertilizers – Processes and products – Forms or conditioning

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548377, A01N 4356

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active

044963904

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.

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