1,2,4-Thiadiazole compounds represented by the formula (1) have excellent control activities against harmful arthropods:
wherein R
1
represents C3-C7 alkynyl group optionally substituted one or more halogen atom(s); R
2
a represents a halogen atom, a C1-C4 alkyl group, a C1-C4 haloalkyl group, a C1-C4 alkoxy group, a C1-C4 haloalkoxy group, a C1-C4 alkylthio group, a cyano group, or a nitro group, and n is an integer of 0 to 5, provided that, when n is an integer of 2 or more, respective R
2
s may be the same or different; A represents an oxygen atom, a sulfur atom, a single bond, a CR
3
R
4
group, or NR
5
; R
3
and R
4
represent each independently a hydrogen atom or a C1-4 alkyl group; and R
5
represent a hydrogen and the like.
公式(1)代表的
1,2,4-噻二唑化合物对有害节肢动物具有出色的控制活性:
其中,R1代表C3-C7炔基,可选地取代一个或多个卤素原子;R2a代表卤素原子,C1-C4烷基,C1-C4卤代烷基,C1-C4烷氧基,C1-C4卤代烷氧基,C1-C4烷
硫基,
氰基或硝基,n是0到5的整数,但当n是2或更多时,各自的R2可以相同或不同;A代表氧原子,
硫原子,单键,CR3R4基团或NR5;R3和R4分别独立地代表氢原子或C1-4烷基;而R5代表氢等。