BACKGROUNDPyridalyl is a highly active insecticide against lepidopterous larvae, with a novel chemical structure not related to any other existing insecticide. To discover new pyridalyl analogues with high activity against resistant pests, a series of 1,1-dichloropropene derivatives bearing structurally diverse substituted heterocycle rings in place of the pyridine ring of pyridalyl were designed and synthesised. RESULTSAll of the title compounds were confirmed by H-1 NMR, C-13 NMR and high-resolution mass spectra. Two representative compounds (Ic and IIa) were further characterised by X-ray d...
