Phenylacetic acid derivative, use therefor, and production intermediate thereof

A compound represented by formula (I):

• [wherein
• Q represents a group represented by Q1, or a group represented by Q2 (where ● represents a binding site to a benzene ring),
• E represents a C5-C6 cycloalkenyl group which may be optionally substituted with one or more substituents selected from Group D, a C6-C10 aryl group, a five- to ten-membered aromatic heterocyclic group {the C6-C10 aryl group and the five- to ten-membered aromatic heterocyclic group may be optionally substituted by one or more substituents selected from Group A }, R7—C≡C—, R5—O—N═C(R4)—, R8—N═C(R4)—, or R6O—,
• L represents an oxygen atom or NH,
• a combination of R1 and n represents
• a combination where R1 represents a hydrogen atom, and n is 1;
• or
• a combination where R1 represents a C1-C3 chain hydrocarbon group which may be optionally substituted with one or more halogen atoms, a methoxy group, a cyclopropyl group, or a halogen atom, and n is 0,
• R2 represents a methyl group, a cyclopropyl group, or a halogen atom,
• R4 represents a C1-C3 chain hydrocarbon group which may be optionally substituted with one or more halogen atoms, or a hydrogen atom,
• R5 represents a C1-C6 chain hydrocarbon group which may be optionally substituted with one or more substituents selected from Group F, a C3-C6 cycloalkyl group which may be optionally substituted with one or more substituents selected from Group D, a phenyl group, a five- to six- membered aromatic heterocyclic group {the phenyl group and the five- to six- membered aromatic heterocyclic group may be optionally substituted with one or more substituents selected from Group C}, or R18—CH2—,
• R7 represents a C1-C6 chain hydrocarbon group which may be optionally substituted with one or more substituents selected from Group F, a C3-C6 cycloalkyl group which may be optionally substituted with one or more substituents selected from Group D, or a five- to six- membered aromatic heterocyclic group {the five- to six- membered aromatic heterocyclic group may be optionally substituted with one or more substituents selected from Group C},
• R6 represents a methyl group which is substituted with one or more substituents selected from Group F, a C2-C6 chain hydrocarbon group which may be optionally substituted with one or more substituents selected from Group F, a C3-C4 cycloalkyl group which may be optionally substituted with one or more substituents selected from Group D, or R13R4NC(O)—,
• R8 and R13 are identical to or different from each other and represent a C1-C6 chain hydrocarbon group which may be optionally substituted with one or more substituents selected from Group F, a C3-C6 cycloalkyl group which may be optionally substituted with one or more substituents selected from Group D, a phenyl group, a five- to six- membered aromatic heterocyclic group {the phenyl group and the five- to six- membered aromatic heterocyclic group may be optionally substituted with one or more substituents selected from Group C}, or R10—(CH2)m—,
• m is 1 or 2,
• R10 and R18 are identical to or different from each other and represent a phenyl group, or a five- to six- membered aromatic heterocyclic group {the phenyl group and the five- to six- membered aromatic heterocyclic group may be optionally substituted with one or more substituents selected from Group C},
• Group A is a group consisting of a C1-C6 chain hydrocarbon group which may be optionally substituted with one or more substituents selected from Group F, a C3-C6 cycloalkyl group which may be optionally substituted with one or more substituents selected from Group D, a C1-C6 alkylthio group which may be optionally substituted with one or more substituents selected from Group F, OR14, C(O)R11, C(O)OR11, NR11R9, C(R9)═NOR11, a phenyl group, a five- to six- membered aromatic heterocyclic group {the phenyl group, and the five- to six- membered aromatic heterocyclic group may be optionally substituted with one or more substituents selected from Group E}, a halogen atom, a cyano group, and a nitro group,
• R9 represents a C1-C3 chain hydrocarbon group which may be optionally substituted with one or more halogen atoms, or a hydrogen atom,
• R11 and R14 are identical to or different from each other and represent a C1-C6 chain hydrocarbon group which may be optionally substituted with one or more substituents selected from Group F, a C3-C6 cycloalkyl group which may be optionally substituted with one or more substituents selected from Group D, a phenyl group, or a five- to six- membered aromatic heterocyclic group {the phenyl group and the five- to six- membered aromatic heterocyclic group may be optionally substituted with one or more substituents selected from Group C},
• Group C is a group consisting of a C1-C3 chain hydrocarbon group, a C3-C4 cycloalkyl group, a C1-C3 alkoxy group, and a C1-C3 alkylthio group {the C1-C3 chain hydrocarbon group, the C3-C4 cycloalkyl group, the C1-C3 alkoxy group, and the C1-C3 alkylthio group may be optionally substituted with one or more halogen atoms}, a halogen atom, a cyano group, a nitro group, and a hydroxy group,
• Group D is a group consisting of a C1-C3 alkyl group which may be optionally substituted with one or more halogen atoms, a halogen atom, and a cyano group,
• Group E is a group consisting of a C1-C3 chain hydrocarbon group, a C3-C4 cycloalkyl group, a C1-C3 alkoxy group, and C1-C3 alkylthio group {the C3-C4 cycloalkyl group, the C1-C3 alkoxy group, and the C1-C3 alkylthio group may be optionally substituted with one or more halogen atoms}, a halogen atom, a cyano group, a nitro group, and a hydroxy group, and
• Group F is a group consisting of a C3-C4 cycloalkyl group, a C1-C3 alkoxy group, and a halogen atom]
• or its N-oxide or agriculturally acceptable salts.