The invention provides a production method of a 1,2,4-oxadiazole derivative represented by formula (A), which comprises reacting a compound represented by formula (B) and a compound represented by formula (C) in the presence of a basic compound:
wherein Ar is an aromatic group or an aromatic group having substituent(s); W, X, Y and Z are each independently —S—, —N═, —CH═ or —CR═, and one selected from W, X, Y and Z is —S—; and R is an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 3 carbon atoms, a haloalkyl group having 1 to 3 carbon atoms, a haloalkoxy group having 1 to 3 carbon atoms or a halogen atom.
本发明提供了一种由式(A)表示的 1,2,4-噁二唑衍
生物的生产方法,该方法包括在碱性化合物存在下使式(B)表示的化合物和式(C)表示的化合物反应:
其中Ar是芳香基团或具有取代基的芳香基团;W、X、Y和Z各自独立地是-S-、-N═、-CH═或-CR═,选自W、X、Y和Z中的一个是-S-;R是具有1至5个碳原子的烷基、具有1至3个碳原子的烷氧基、具有1至3个碳原子的卤代烷基、具有1至3个碳原子的卤代烷氧基或卤原子。