摘要
Some more new fluorinated 1,2,4-triasino[3,4-b][1,3,4]thiadiazolones (6-9 and 11-16) have been synthesized from cyclocondensation of 5-hydrazino-2-(4'-fluorophenyl)-1,3,4-thiadiazole with bifunctional oxygen and halogen compounds. Structures of the products have been deduced from their elemental, chemical and spectral data (UV, IIL 1H/13C NMR (nuclear magnetic resonance) and mass). All the new compounds evaluated as molluscicidal against towards snails which responsible for Bilharziasis diseases.