SUBSTITUTED PYRAZOLYLPYRAZOLE DERIVATIVE AND USE OF SAME AS HERBICIDE

摘要

Provided is a compound capable of effectively control worst weeds of higher leaf stages that present practical problems. A specific pyrazolylpyrazole derivative of formula (I) is disclosed that is able to solve the above-mentioned problems.;

主权项

1. A compound represented by the following formula (I): wherein,
R1 represents a halogen atom,R2 represents a cyano group, nitro group or halogen atom,R3 represents a hydrogen atom, trifluoroacetyl group, pentafluoropropionyl group or heptafluorobutenyl group,R4-R9 may be the same or different and represent hydrogen atoms, halogen atoms, C1-C6 alkyl groups which may be substituted with one or more halogen atoms depending on the case, C3-C6 cycloalkyl groups which may be substituted with one or more halogen atoms depending on the case, C2-C6 alkenyl groups which may be substituted with one or more halogen atoms depending on the case, C2-C6 alkynyl groups which may be substituted with one or more halogen atoms depending on the case, C1-C6 alkoxy-C1-C6-alkyl groups which may be substituted with one or more halogen atoms depending on the case, or phenyl groups which may be substituted with one or more halogen atoms, nitro groups, cyano groups, C1-C4 alkyl groups, which may be substituted with one or more halogen atoms depending on the case, or C1-C4 alkoxy groups, depending on the case,a represents 3 to 5, andb represents 0 to 2.