Synthesis and Fungicidal Activity of 1,3,4-Oxadiazole Substituted Acylthioureas

A series of N′-(5-aryl-1,3,4-oxadiazole-2-yl) actylthioureas have been synthesized from p-chlorophenoxyacetic acid, and then substituted 2-amino-5-aryl-1,3,4-oxadiazoles reacting with acylthiocyanoester, which are derived from the second step, are used. Their structures are confirmed by Infrared, 1H nuclear magnetic resonance, and elementary analysis. From biological testing, it is found that some of these compounds have good fungicidal activity.