Synthesis and structure-insecticidal activity relationship of novel phenylpyrazole carboxylic acid derivatives containing fluorine moiety
作者:Baolei Wang、Hongxue Wang、Hang Liu、Lixia Xiong、Na Yang、Yan Zhang、Zhengming Li
DOI:10.1016/j.cclet.2019.07.064
日期:2020.3
Abstract A series of novel phenylpyrazole carboxylic acid derivatives containing fluorine moiety, i.e., diamides 11, simple aryl-bearing amides 12 and acylthioureas 14 were successfully synthesized based on the key fluoro-containing phenylpyrazole acid intermediate. The new compounds were identified and confirmed by melting point, 1H NMR, 13C NMR and elemental analysis or HRMS. The bioassay results
摘要基于关键的含氟苯基吡唑酸中间体,成功合成了一系列含氟部分的新型苯基吡唑羧酸衍生物,即二酰胺11,简单的含芳基酰胺12和酰基硫脲14。通过熔点,1H NMR,13C NMR和元素分析或HRMS鉴定并确认了新化合物。生物测定结果表明,某些化合物在低浓度下对东方粘虫,小菜蛾和玉米bore具有良好的杀虫活性。例如,化合物11a,11e-g和14b表现出显着的杀幼虫活性,其对东方粘虫和小菜蛾的LC50值分别为0.13-0.39 mg / L和0.0002-0.0014 mg / L,与对照氯虫腈相当。特别,在东方粘虫试验中发现11e优于氯蒽醌(LC50:0.23 mg / L对0.26 mg / L);在小菜蛾试验中,LC50分别为0.0002 mg / L,0.0002 mg / L,0.0008 mg / L和0.0005 mg / L的11a,11e,11f和14c比氯噻菌灵更有效。另外,