Abstract: Provided is a plant disease controlling agent that has low toxicity to humans and animals, that is excellent in handling safety, and that has an excellent controlling effect against a wide range of plant diseases and a high antimicrobial action against plant disease fungi. The present invention is a compound represented by general formula (I) below, or N-oxide or a pesticidally acceptable salt thereof: [Chem.

Abstract: In the present invention, a compound (I) is reacted with a base selected from the group consisting of a metal alkoxide, a metal hydride compound, an alkali metal, an organometallic compound of an alkali metal, an alkali metal amide, an alkali metal carbonate salt, an alkali earth metal carbonate salt, and a mixture of these to produce a compound (II). Thereafter, this reaction solution is mixed with a compound (III) and a sulfonium compound or a sulfoxonium compound in the presence of a base to obtain an azole derivative (V).

Abstract: Provided are: a method for producing a cycloalkanol derivative that enables the production of an azole derivative at low cost and with high yield; and a method for producing an azole derivative. In a process of producing a cycloalkanol derivative represented by general formula (I), a reaction step of azolylmethylating a cycloalkanone derivative represented by general formula (II) is carried out using an azole compound represented by general formula (III) in the presence of a sulfur ylide. In this step, the sulfur ylide is produced from a sulfonium compound or sulfoxonium compound and an alkali metal methoxide in a reaction system.