Design, Synthesis, and Biological Activities of Novel Phenylpyrazole Derivatives Containing a Trifluoromethylselenyl Moiety
作者:Lefeng Dong、Wenning Chang、Wulin Yang、Zhiping Xu、Jiagao Cheng、Xusheng Shao、Xiaoyong Xu、Zhong Li
DOI:10.1021/acs.jafc.3c03193
日期:2023.8.2
Herein, 36 novel phenylpyrazole derivatives containing a trifluoromethylselenyl moiety were designed and synthesized based on the strategy of introducing a selenium element. All derivative structures were characterized by nuclear magnetic resonance (NMR) and high-resolution mass spectrometry (HRMS). The insecticidal activity results indicated that some derivatives had good insecticidal activities
苯基吡唑杀虫剂通过阻断γ-氨基丁酸(GABA)门控氯离子通道和谷氨酸门控氯离子(GluCl)通道而广泛用于作物保护和公共卫生。在此,基于引入硒元素的策略,设计并合成了36种含有三氟甲基硒基部分的新型苯基吡唑衍生物。所有衍生结构均通过核磁共振(NMR)和高分辨率质谱(HRMS)进行表征。杀虫活性结果表明,部分衍生物对白纹伊蚊(A. albopictus)和小菜蛾(P. xylostella)具有良好的杀虫活性。0.5 mg/L 的化合物5、5a、5k和5l对蚊子的杀幼活性为 60-80%。在浓度为 500 mg/L 时,化合物5、5a、5h、5k、5l、5r、6、6j、6k和7对小菜蛾的死亡率为 70–100% 。其中衍生物5和6的杀虫效果较好,50mg/L时死亡率分别为87%和93%。对接研究表明,氟虫腈与化合物5和6在家蝇(M.domestica)GABAR中的不同结合姿势可能导致生物活