Synthesis and Fungicidal Activity of N-5-Aryl-1,3,4-thiadiazol-2-yl-N'-α-Naphthylacetylthioureas (Department of Chemistry, Central China Normal University, Wuhan 430079, China)

A series of novel N-(5-aryl-1,3,4-oxadiazol-2-yl)-N'-α-naphthylacetylthioureas were synthesized from 2-amino-5-aryl-1,3,4-oxadiazoles. Their structures had been confirmed by IR, MS,1H NMR and elemental analysis. The results of biological test showed that most of these compounds had good fungicidal activity. The fungicidal activity to Botrytis cinereapers, could mostly reach 80%.