Disulfide derivative containing 1,3,4-oxa(thia)diazole and preparation method and application of derivative

The invention discloses a disulfide derivative containing 1,3,4-oxa(thia)diazole and a preparation method and application of the derivative. The disulfide derivative has the following general formula (as shown in the specification), wherein R1 is selected from 4-chlorphenyl, 4-fluoro-phenyl, benzyl, 4-chloro-benzyl and other substituent groups; R2 is selected from methyl, ethyl, benzyl, 4-chloro-benzyl, ethyl acetate and other substituent groups; X is O or S. The disulfide derivative disclosed by the invention can serve as a medicine or agent for killing nematodes and inhibiting crop bacterium diseases. 本发明公开了种含1,3,4-噁（噻）二唑的双硫醚类衍生物、其制备方法及应用，其通式如下：(I)其中：R选自4-氯苯基、4-氟苯基、苄基及4-氯苄基等取代基；R选自甲基、乙基、苄基、4-氯苄基及乙酸乙酯等取代基；X为O或S。本发明可用作杀线虫和抑制作物细菌性病的药物或药剂。