| abstract |
By reacting the compound represented by formula (2) with the compound represented by formula (3), a pyridine compound represented by formula (1) useful as an insecticide can be produced. [Wherein L 1 represents a halogen atom, and R 2 , R 3 , R 4 , R 5 and R 6 represent a C 1-6 chain hydrocarbon group which may be substituted with a fluorine atom, etc. Represent. A 1 represents —NR 7 —, an oxygen atom or a sulfur atom, and A 2 represents a nitrogen atom or ═CR 8 —. R 7 and R 8 represent a chain hydrocarbon group having 1 to 6 carbon atoms or a hydrogen atom. M + represents a sodium ion, a potassium ion or a lithium ion. ]. |