Production method of 1, 2, 4-triazole compound

A production method of a 1,2,4-triazole compound,

• comprising a step of reacting an amide compound represented by the formula (2) with a hydrazide compound represented by the formula (3) in a solvent in the presence of a Lewis acid and a Lewis base, thereby obtaining a 1,2,4-triazole compound represented by the formula (1):
• wherein
• R1 represents an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group or a substituted amino group and the foregoing groups optionally have a substituent,
• R2 and R3 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, a monovalent heterocyclic group or a substituted amino group and the foregoing groups optionally have a substituent, and R2 and R3 may form a ring together with the carbon atoms to which they are attached and the atoms adjacent to the carbon atoms in Ring A, and
• Ring A and Ring B each independently represent an aromatic hydrocarbon ring or an aromatic heterocyclic ring and the foregoing rings optionally have a substituent, and when a plurality of the substituents are present, they may be the same or different and may be combined together to form a ring together with the atoms to which they are attached.