Synthesis, crystal structure and biological activity of a novel anthranilic diamide insecticide containing allyl ether

In search of environmentally benign insecticides with high activity, low toxicity and low residue, a series of novel anthranilic diamides containing allyl ether were designed and synthesized. All the compounds were characterized by ¹H NMR spectroscopy, HRMS or elemental analysis. The single crystal structure of 18e was determined by X-ray diffraction. The insecticidal activities of the new compounds were evaluated. The results showed that some compounds exhibited excellent insecticidal activities against Lepidoptera pests. Among this series compounds, 18l showed 100 % larvicidal activity against Mythimna separate Walker and Plutella xylostella Linnaeus at the test concentration.