摘要:
Alkylation of 5-substituted 2H,3H-1,3,4-(oxadiazole-3-thiones with alpha-bromo ketones in alkaline solutions yields 5-substituted 2-aroylmethylthio-1,3,4-oxadiazoles; in acidic solutions these compounds rearrange into 4-aryl-3-arylacetamido-2H,3H-1,3-thiazol-2-ones.