Bipyridine compound and use of same for noxious arthropod control

1. A bipyridine compound of formula (I) or an N-oxide thereof:

wherein:

R 1 represents a C2-C10 haloalkyl group, a C3-C10 haloalkenyl group, a C3-C10 haloalkynyl group, a (C1-C5 alkoxy)C2-C5 alkyl group substituted with one or more halogen atoms, a (C1-C5 alkylsulfanyl)C2-C5 alkyl group substituted with one or more halogen atoms, a (C1-C5 alkylsulfinyl)C2-C5 alkyl group substituted with one or more halogen atoms, a (C1-C5 alkylsulfonyl)C2-C5 alkyl group substituted with one or more halogen atoms, a (C3-C7 cycloalkyl)C1-C3 alkyl group substituted with one or more substituents selected from Group G, or a C3-C7 cycloalkyl group substituted with one or more substituents selected from Group G;

R 2 represents a C1-C6 alkyl group optionally substituted with one or more halogen atoms, a cyclopropylmethyl group, or a cyclopropyl group;

R 3 represents a C1-C6 chain hydrocarbon group optionally substituted with one or more substituents selected from Group B, a phenyl group optionally substituted with one or more substituents selected from Group D, a 5 or 6 membered aromatic heterocyclic group optionally substituted with one or more substituents selected from Group D, a OR 12 , a NR 11 R 12 , a NR 11a R 12a , a NR 24 NR 11 R 12 , a NR 11 C(O)R 13 , a NR 24 NR 11 C(O)R 13 , a NR 11 C(O)OR 14 , a NR 24 NR 11 C(O)OR 14 , a NR 11 C(O)NR 15 R 16 , a NR 24 NR 11 C(O)NR 15 R 16 , a N═CHNR 15 R 16 , a N═S(O) x R 15 R 16 , a S(O) y R 15 , a C(O)OR 17 , a C(O)NR 11 R 12 , a cyano group, a nitro group, or a halogen atom;

R 6 represents a C1-C6 alkyl group optionally substituted with one or more halogen atoms, a OR 18 , a NR 18 R 19 , a C(O)OR 25 , a OC(O)R 20 , a cyano group, a nitro group, or a halogen atom;

R 11 , R 17 , R 18 , R 19 , R 20 , R 24 and R 25 represent independently of each other a hydrogen atom, or a C1-C6 chain hydrocarbon group optionally substituted with one or more halogen atoms;

R 12 represents a hydrogen atom, a C1-C6 chain hydrocarbon group optionally substituted with one or more halogen atoms, a C1-C6 alkyl group substituted with one substituent selected from Group F, or a S(O) 2 R 23 ;

R 23 represents a C1-C6 chain hydrocarbon group optionally substituted with one or more halogen atoms, or a phenyl group optionally substituted with one or more substituents selected from Group D,

R 11a and R 12a combine together with a nitrogen atom to which they are attached to form a 3 to 7 membered nonaromatic heterocyclic group, wherein the 3 to 7 membered nonaromatic heterocyclic group represents aziridine, azetidine, pyrrolidine, imidazoline, imidazolidine, piperidine, tetrahydropyrimidine, hexahydropyrimidine, piperazine, azepane, oxazolidine, isooxazolidine, 1,3-oxazinane, morpholine, 1,4-oxazepane, thiazolidine, isothiazolidine, 1,3-thiazinane, thiomorpholine, or 1,4-thiazepane, and the 3 to 7 membered nonaromatic heterocyclic group is optionally substituted with one or more substituents selected from Group E;

R 13 represents a hydrogen atom, a C1-C6 chain hydrocarbon group optionally substituted with one or more halogen atoms, a C3-C7 cycloalkyl group optionally substituted with one or more halogen atoms, a (C3-C6 cycloalkyl)C1-C3 alkyl group optionally substituted with one or more halogen atoms, a phenyl group optionally substituted with one or more substituents selected from Group D, or a 5 or 6 membered aromatic heterocyclic group optionally substituted with one or more substituents selected from Group D;

R 14 represents a C1-C6 chain hydrocarbon group optionally substituted with one or more halogen atoms, a C3-C7 cycloalkyl group optionally substituted with one or more halogen atoms, a (C3-C6 cycloalkyl)C1-C3 alkyl group optionally substituted with one or more halogen atoms, or a phenylC1-C3 alkyl group, wherein the phenyl group in the group is optionally substituted with one or more substituents selected from Group D;

R 15 and R 16 represent independently of each other, a C1-C6 alkyl group optionally substituted with one or more halogen atoms;

n and y represent independently of each other 0, 1 or 2;

x represents 0 or 1;

p and q represent independently of each other 0, 1, 2, or 3, and when p is 2 or 3, a plurality of R 6 can be identical or different, and when q is 2 or 3, a plurality of R 3 can be identical or different;

Group B is selected from the group consisting of a C1-C6 alkoxy group optionally substituted with one or more halogen atoms, a C3-C6 alkenyloxy group optionally substituted with one or more halogen atoms, a C3-C6 alkynyloxy group optionally substituted with one or more halogen atoms, a C1-C6 alkylsulfanyl group optionally substituted with one or more halogen atoms, a C1-C6 alkylsulfinyl group optionally substituted with one or more halogen atoms, a C1-C6 alkylsulfonyl group optionally substituted with one or more halogen atoms, a C3-C6 cycloalkyl group optionally substituted with one or more halogen atoms, a cyano group, a hydroxy group, and a halogen atom;

Group D is selected from the group consisting of a C1-C6 chain hydrocarbon group optionally substituted with one or more halogen atoms, a hydroxy group, a C1-C6 alkoxy group optionally substituted with one or more halogen atoms, a C3-C6 alkenyloxy group optionally substituted with one or more halogen atoms, a C3-C6 alkynyloxy group optionally substituted with one or more halogen atoms, a sulfanyl group, a C1-C6 alkylsulfanyl group optionally substituted with one or more halogen atoms, a C1-C6 alkylsulfinyl group optionally substituted with one or more halogen atoms, a C1-C6 alkylsulfonyl group optionally hsubstituted with one or more halogen atoms, an amino group, a NHR 21 , a NR 21 R 22 , a C(O)R 21 , a OC(O)R 21 , a C(O)OR 21 , a cyano group, a nitro group, and a halogen atom, wherein R 21 and R 22 represent independently of each other a C1-C6 alkyl group optionally substituted with one or more halogen atoms;

Group E is selected from the group consisting of a C1-C6 chain hydrocarbon group optionally substituted with one or more halogen atoms, a C1-C6 alkoxy group optionally substituted with one or more halogen atoms, a C3-C6 alkenyloxy group optionally substituted with one or more halogen atoms, a C3-C6 alkynyloxy group optionally substituted with one or more halogen atoms, a halogen atom, an oxo group, a hydroxy group, a cyano group, and a nitro group;

Group F is selected from the group consisting of a C1-C6 alkoxy group optionally substituted with one or more halogen atoms, a NHR 21 , a NR 21 R 22 , a cyano group, a phenyl group optionally substituted with one or more substituents selected from Group D, a 5 or 6 membered aromatic heterocyclic group optionally substituted with one or more substituents selected from Group D, a C3-C7 cycloalkyl group optionally substituted with one or more halogen atoms, and a 3 to 7 membered nonaromatic heterocyclic group optionally substituted with one or more substituents selected from Group C;

Group C is selected from the group consisting of a C1-C6 chain hydrocarbon group optionally substituted with one or more halogen atoms, a C1-C6 alkoxy group optionally substituted with one or more halogen atoms, a C3-C6 alkenyloxy group optionally substituted with one or more halogen atoms, a C3-C6 alkynyloxy group optionally substituted with one or more halogen atoms, and a halogen atom;

Group G is selected from the group consisting of a halogen atom, and a C1-C6 haloalkyl group.

2. The bipyridine compound according to claim 1 , wherein q is 0, 1, 2 or 3, R 3 represents a C1-C6 chain hydrocarbon group optionally substituted with one or more halogen atoms, a 5 or 6 membered aromatic heterocyclic group optionally substituted with one or more substituents selected from Group D, a OR 12 , a NR 11 R 12 , a NR 24 NR 11 R 12 , or a halogen atom.

3. The bipyridine compound according to claim 1 , wherein q is 0, 1, 2 or 3, R 3 represents a C1-C6 chain hydrocarbon group optionally substituted with one or more halogen atoms, or a 5 membered aromatic heterocyclic group containing one to four nitrogen atoms, wherein the 5 membered aromatic heterocyclic group is optionally substituted with one or more substituents selected from Group D, a OR 12 , a NR 11 R 12 , a NR 24 NR 11 R 12 , or a halogen atom.

4. The bipyridine compound according to claim 1 , wherein q is 0, 1 or 2, R 3 represents a C1-C6 alkyl group optionally substituted with one or more halogen atoms, a 1,2,4-triazol-1-yl group optionally substituted with one or more halogen atoms, a NR 11 R 12 , or a halogen atom, and R 11 and R 12 represent independently of each other a hydrogen atom, or a C1-C3 alkyl group optionally substituted with one or more halogen atoms.

5. The bipyridine compound according to claim 1 , wherein p is 0 or 1, and R 6 represents a C1-C6 alkyl group optionally substituted with one or more halogen atoms, or a halogen atom.

6. The bipyridine compound according to claim 1 , wherein R 1 represents a C2-C10 haloalkyl group, or a (C1-C5 alkoxy)C2-C5 alkyl group substituted with one or more halogen atoms.

7. The bipyridine compound according to claim 1 , wherein R 1 represents a C2-C10 fluoroalkyl group, or a (C1-C5 alkoxy)C2-C5 alkyl group substituted with one or more fluorine atoms.

8. The bipyridine compound according to claim 1 , wherein R 1 represents a C2-C10 alkyl group substituted with two or more fluorine atoms, or a (C1-C5 alkoxy)C2-C5 alkyl group substituted with two or more fluorine atoms.

9. The bipyridine compound according to claim 1 , wherein R 1 represents a C3-C5 alkyl group substituted with four or more fluorine atoms.

10. The bipyridine compound according to claim 1 , wherein R 2 represents a C1-C6 alkyl group optionally substituted with one or more halogen atoms.

11. The bipyridine compound according to claim 1 , wherein R 2 represents an ethyl group.

12. The bipyridine compound according to claim 1 , wherein R 1 represents a C2-C10 haloalkyl group, or a (C1-C5 alkoxy)C2-C5 alkyl group substituted with one or more halogen atoms;

R 2 represents a C1-C6 alkyl group optionally substituted with one or more halogen atoms;

q is 0, 1 or 2, R 3 represents a halogen atom, or a C1-C6 alkyl group optionally substituted with one or more halogen atoms,

p is 0 or 1, and R 6 represents a halogen atom, or a C1-C6 alkyl group optionally substituted with one or more halogen atoms.

13. The bipyridine compound according to claim 1 , wherein R 1 represents a C3-C5 alkyl group substituted with four or more fluorine atoms, or a 1,1,2-trifluoro-2-(trifluoromethoxy)ethyl group;

R 2 represents an ethyl group;

q is 0, 1 or 2, R 3 represents a C1-C6 alkyl group optionally substituted with one or more halogen atoms, a 1,2,4-triazol-1-yl group optionally substituted with one or more halogen atoms, a NR 11 R 12 , or a halogen atom, and R 11 and R 12 represent independently of each other a hydrogen atom, or a C1-C3 alkyl group optionally substituted with one or more halogen atoms; and

p is 0 or 1, and R 6 represents a halogen atom.

14. The bipyridine compound according to claim 1 , wherein R 1 represents a C3-C5 alkyl group substituted with four or more fluorine atoms;

R 2 represents an ethyl group, q is 0 or 1, R 3 represents a halogen atom, or a C1-C6 alkyl group optionally substituted with one or more halogen atoms, and p is 0.

15. A composition for controlling a harmful arthropod comprising the bipyridine compound according to claim 1 and an inert carrier.

16. A method for controlling a harmful arthropod which comprises applying an effective amount of the bipyridine compound according to claim 1 to a harmful arthropod or a habitat where a harmful arthropod lives.