| abstract |
NEW MATERIAL:A pyridylpyridone derivative shown by the formula (X is F, or Cl; Y is H, F, or Cl; Z is H, F, Br, Cl or cyano). n EXAMPLE: [ (2H),3-Chloro-5-trifluoromethyl-3'-chloro-5'-triflu-or-omethyl-2'-bipyridin ]-2-one. n USE: Useful as an insecticide. Effective against Hemiptera such as insects belonging to the family Delphacidae, Lepidoptera such as Mamestra brassicae Linne, diamondback moth, etc., Diptera such as Culex pipiens pallens, Musca domestica Linne, etc., Dictyoptera such as Blattella nipponica Asahina, etc. Showing excel lent effect on insect pests having resistance to insectides. n PREPARATION: For example, 2,3-dichloro-5-trifluoromethylpyridine is heated with dimethylformamide and anhydrous sodium acetate, to give a compound shown by the formula where X is Cl, Y is H, and Z is Cl. n COPYRIGHT: (C)1986,JPO&Japio |