PROCESS FOR PRODUCTION OF 5-ALKOXY-4-HYDROXYMETHYLPYRAZOLE COMPOUND

摘要

Disclosed is a process for production of a 5-alkoxy-4-hydroxymethylpyrazole compound with good efficiency in a simple manner. A process for production of a 5-alkoxy-4-hydroxymethylpyrazole compound represented by the genera formula (3): (3) [wherein R₁ represents a substituent such as an alkyl group and an aryl group which may have a substituent; R₂ represents an electron-withdrawing group; and R₃ represents a substituent such as an alkyl group which may have a substituent] comprises the step of reacting a pyrazole compound represented by the general formula (1): (1) [wherein R₁ and R₂ are as defined above] with a compound represented by the general formula (2): L-R₃ (2) [wherein L represents a leaving group; and R₃ is as defined above] in the presence of a base and formaldehyde.