Design, synthesis and insecticidal evaluation of aryloxy dihalopropene derivatives.

摘要: Plutella xylostella (P. xylostella) is a highly migratory, cosmopolitan species and one of the most important pest cruciferous crops worldwide. Pyridalyl as novel class insecticides has good efficacy against P. xylostella. On basis commercial insecticide pyridalyl, series new aryloxy dihalopropene derivatives were designed synthesized by using Intermediate Derivatization Methods. Their chemical structures confirmed (1)H NMR, high-resolution mass spectrum (HRMS), single-crystal X-ray diffraction analysis. The insecticidal activities compounds evaluated. results bioassays indicated that showed moderate to high at tested concentration, especially 10e 10g displayed more than 75% activity 6.25mg/L, while pyridalyl 50% same concentration. field trials result compound 10% emulsifiable concentrate (EC) was effective in control 75-150g a.i./ha, mortality for treatment with 75g a.i./ha equivalent 105g a.i./ha.