A 4-aryl-4-substituted pyrazolidine-3,5-dione derivative represented by the formula (1) is useful as an effective component of a miticide, insecticide or herbicide
wherein R1 and R2 are each independently alkyl group having 1 to 4 carbon atoms, or R1 and R2, when taken together, represent saturated or unsaturated bivalent hydrocarbon group having 3 or 4 carbon atoms which may optionally be substituted with alkyl group having 1 to 4 carbon atoms, or halogen atom, X is alkyl group having 1 to 4 carbon atoms, haloalkyl group having 1 to 4 carbon atoms or halogen atom, Y is halogen atom or nitro group, and n is an integer of 0 to 3.
由式(1)表示的 4-芳基-4-取代的
吡唑烷-3,5-二酮衍
生物可作为
杀螨剂、
杀虫剂或
除草剂的有效成分
其中 R1 和 R2 各自独立地为具有 1 至 4 个碳原子的烷基,或 R1 和 R2 合在一起时代表具有 3 或 4 个碳原子的饱和或不饱和二价烃基,可任选被具有 1 至 4 个碳原子的烷基或卤素原子取代,X 为具有 1 至 4 个碳原子的烷基、具有 1 至 4 个碳原子的卤代烷基或卤素原子,Y 为卤素原子或硝基,n 为 0 至 3 的整数。