Abstract
1,3-Dithiolane-containing nitromethylene derivatives, as candidates for screening as neonicotinoid insecticides, were synthesized by reaction of compound (4) with 1,2-ethanedithiol. Compounds 7a–g were obtained via Mannich reaction of (E)-1-((1,3-dithiolan-2-yl)methyl)-2-(nitromethylene)imidazolidine (6), primary amines and formaldehyde. The synthesized compounds were identified by 1H NMR, IR spectroscopy and elemental analysis. Preliminary bioassays indicated that most of the compounds had moderate insecticidal activity against Aphis craccivora. The relationship between molecular structure and biological activity is discussed.
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Acknowledgments
We thank the National Science Foundation China Program (grant 20902037), the Promotive Research Fund for Excellent Young and Middle-aged Scientists of Shandong Province (grant BS2010NY001), and the Opening Fund of Shanghai Key Laboratory of Chemical Biology (grant SKLCB-2008-08).
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Li, D., Tian, Z., Xu, Z. et al. Synthesis of 1,3-dithiolane-containing nitromethene compounds and their biological activity as insecticides. Res Chem Intermed 39, 2063–2070 (2013). https://doi.org/10.1007/s11164-012-0737-0
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DOI: https://doi.org/10.1007/s11164-012-0737-0