Pyrimidinone compound

A pyrimidinone compound represented by formula (1):

• wherein:
• A1 represents a nitrogen atom or a CR4;
• A2 represents a nitrogen atom and A3 represents a CR3b, or A2 represents a CR3a and A3 represents a nitrogen atom;
• Q represents an oxygen atom or a sulfur atom;
• G represents a C2-C10 haloalkyl group, a C3-C10 haloalkenyl group, a C3-C10 haloalkynyl group, a (C1-C5 alkyl)-O—(C2-C5 alkyl) group having one or more halogen atoms, a (C3-C5 alkenyl)-O—(C2-C5 alkyl) group having one or more halogen atoms, a (C3-C5 alkynyl)-O—(C2-C5 alkyl) group having one or more halogen atoms, a (C1-C5 alkyl)-S(O)m—(C2-C5 alkyl) group having one or more halogen atoms, a (C3-C5 alkenyl)-S(O)m—(C2-C5 alkyl) group having one or more halogen atoms, a (C3-C5 alkynyl)-S(O)m—(C2-C5 alkyl) group having one or more halogen atoms, or a (C1-C5 alkyl)-C(O)—(C1-C5 alkyl) group having one or more halogen atoms;
• R1 represents a C1-C6 chain hydrocarbon group optionally having one or more halogen atoms;
• R2 represents a C1-C6 chain hydrocarbon group optionally having one or more halogen atoms, a phenyl group optionally having one or more atoms or groups selected from Group A, a 5 membered aromatic heterocyclic group selected from Group B, wherein said 5 membered aromatic heterocyclic group may optionally have one or more atoms or groups selected from Group A, a 6 membered aromatic heterocyclic group selected from Group C, wherein said 6 membered aromatic heterocyclic group may optionally have one or more atoms or groups selected from Group A, a 3 to 7 membered nonaromatic heterocyclic group selected from Group D, wherein said 3 to 7 membered nonaromatic heterocyclic group may optionally have one or more atoms or groups selected from the group consisting of a halogen atom and a C1-C6 alkyl group, a OR7, a NR8R9, a NR8C(O)R10, a NR8C(O)OR11, a NR8C(O)NR12R13, a N═CHNR12R13, a N═S(O)xR12R13, a S(O)yR12, a C(O)OR8, a cyano group, or a halogen atom;
• R4 represents a hydrogen atom or a halogen atom;
• R3, R3a, and R3b represent independently of each other a hydrogen atom, a C1-C3 alkyl group optionally having one or more halogen atoms, or a halogen atom;
• R7 represents a hydrogen atom, a C1-C6 alkyl group optionally having one or more halogen atoms, a C3-C6 alkenyl group optionally having one or more halogen atoms, a C3-C6 alkynyl group optionally having one or more halogen atoms, a (C1-C3 alkyl)-O—(C1-C3 alkyl) group optionally having one or more halogen atoms, a (C1-C3 alkyl)-S(O)y—(C1-C3 alkyl) group optionally having one or more halogen atoms, a C3-C7 cycloalkyl group optionally having one or more halogen atoms, a (C3-C7 cycloalkyl)-(C1-C3 alkyl) group optionally having one or more halogen atoms, or a phenyl C1-C3 alkyl group, wherein the phenyl moiety in said phenyl C1-C3 alkyl group may optionally have one or more atoms or groups selected from Group A;
• R8 represents a hydrogen atom, a C1-C6 alkyl group optionally having one or more halogen atoms, a C3-C6 alkenyl group optionally having one or more halogen atoms, or a C3-C6 alkynyl group optionally having one or more halogen atoms;
• R9 represents a hydrogen atom, a C1-C6 alkyl group optionally having one or more halogen atoms, a C3-C6 alkenyl group optionally having one or more halogen atoms, a C3-C6 alkynyl group optionally having one or more halogen atoms, a (C1-C3 alkyl)-O—(C1-C3 alkyl) group optionally having one or more halogen atoms, a (C1-C3 alkyl)-S(O)y—(C1-C3 alkyl) group optionally having one or more halogen atoms, a C3-C7 cycloalkyl group optionally having one or more halogen atoms, a (C3-C7 cycloalkyl)-(C1-C3 alkyl) group optionally having one or more halogen atoms, a C1-C6 alkyl group having one cyano group, a phenyl C1-C3 alkyl group, wherein the phenyl moiety in said phenyl C1-C3 alkyl group may optionally have one or more atoms or groups selected from Group A, or a (5 or 6 membered heteroaryl)C1-C6 alkyl group, wherein the 5 or 6 membered heteroaryl moiety in said (5 or 6 membered heteroaryl)C1-C6 alkyl group may optionally have one or more atoms or groups selected from Group A;
• R10 represents a hydrogen atom, a C1-C6 alkyl group optionally having one or more halogen atoms, a C3-C6 alkenyl group optionally having one or more halogen atoms, a C3-C6 alkynyl group optionally having one or more halogen atoms, a C3-C7 cycloalkyl group optionally having one or more halogen atoms, a (C3-C7 cycloalkyl)-(C1-C3 alkyl) group optionally having one or more halogen atoms, or a phenyl C1-C3 alkyl group, wherein the phenyl moiety in said phenyl C1-C3 alkyl group may optionally have one or more atoms or groups selected from Group A;
• R11 represents a C1-C6 alkyl group optionally having one or more halogen atoms, a C3-C6 alkenyl group optionally having one or more halogen atoms, a C3-C6 alkynyl group optionally having one or more halogen atoms, a C3-C7 cycloalkyl group optionally having one or more halogen atoms, a (C3-C7 cycloalkyl)-(C1-C3 alkyl) group optionally having one or more halogen atoms, or a phenyl C1-C3 alkyl group, wherein the phenyl moiety in said phenyl C1-C3 alkyl group may optionally have one or more atoms or groups selected from Group A;
• R12 and R13 represent independently of each other a C1-C6 alkyl group optionally having one or more halogen atoms;
• R14 represents a hydrogen atom, a C1-C6 alkyl group optionally having one or more halogen atoms, a C2-C6 alkylcarbonyl group optionally having one or more halogen atoms, or a C2-C6 alkoxycarbonyl group optionally having one or more halogen atoms;
• n represents 0, 1, or 2;
• m represents 0, 1, or 2;
• p represents 0, 1, 2, or 3, wherein when p represents 2 or 3, each R2 may be identical or different;
• x represents 0 or 1;
• and
• y represents 0, 1, or 2;
• Group A:
• a group consisting of a C1-C6 alkyl group optionally having one or more halogen atoms, a C1-C6 alkoxy group optionally having one or more halogen atoms, a C1-C6 alkylsulfanyl group optionally having one or more halogen atoms, a C1-C6 alkylsulfinyl group optionally having one or more halogen atoms, a C1-C6 alkylsulfonyl group optionally having one or more halogen atoms, a cyano group, and a halogen atom;
• Group B:
• Group C:
• Group D: