A pyridine compound represented by formula (1) that is useful as an insecticide is produced by reacting a compound represented by formula (2) and a compound represented by formula (3). In formula (2) L
1
represents a halogen atom; R
2
, R
3
, R
4
, R
5
, and R
6
represent chain hydrocarbon groups, etc., having 1-6 carbon atoms optionally substituted by fluorine atoms; A
1
represents —NR
7
—, an oxygen atom, or a sulfur atom; A
2
represents a nitrogen atom or ═CR
8
—; and R
7
and R
8
represent C1-6 chain hydrocarbon groups or hydrogen atoms. In formula (3) M
+
represents a sodium ion, a potassium ion, or a lithium ion.
通过将由式(2)表示的化合物和由式(3)表示的化合物反应,可以生产一种由式(1)表示的
吡啶化合物,该化合物可用作
杀虫剂。在式(2)中,L1代表卤原子;R2、R3、R4、R5和R6代表链烃基团等,含有1-6个碳原子,可选择性地被
氟原子取代;A1代表—NR7—、氧原子或
硫原子;A2代表氮原子或 ═CR8—;R7和R8代表C1-6链烃基团或氢原子。在式(3)中,M+代表
钠离子、
钾离子或
锂离子。