However, it poses a significant threat to aquatic organisms and bees due to its high toxicity. Herein, 35 phenylpyrazole derivatives containing a trifluoroethylthio group on the 4 position of the pyrazole ring were designed and synthesized. The predicted physicochemical properties of all of the compounds were within a reasonable range. The biological assay results revealed that compound 7 showed 69
氟虫腈作为第一个上市的苯基
吡唑类
杀虫剂,表现出显着的广谱杀虫活性。然而,由于其高毒性,对
水生
生物和蜜蜂构成重大威胁。本文设计并合成了35种
吡唑环4位上含有三
氟乙
硫基的苯基
吡唑衍
生物。所有化合物的预测理化性质均在合理范围内。
生物学测定结果表明,化合物7在0.125 mg/L浓度下对白纹伊蚊( A. albopictus )的致死率达69.7%。化合物7、7g 、 8d和10j对于防治小菜蛾( P. xylostella )表现出优异的杀虫活性。值得注意的是,与
氟虫腈相比,化合物7对豆蚜( A. craccivora )表现出相似的杀虫活性。电势表面计算和分子对接表明,不同的亲脂性和与家蝇( M.domestica )γ-
氨基
丁酸受体的结合模型可能是测试衍
生物活性降低的原因。毒性试验表明,化合物8d (LC 50 = 14.28 mg/L)对斑马鱼胚胎-幼年发育的毒性明显低于
氟虫腈(LC 50