[Some aroylhydrazones of halobenzaldehydes and halogen-substituted 2,5-diaryl-1,3,4-oxadiazoles]

The preparation of a series of aroylhydrazones of halogenobenzaldehydes (I) - (XI) is described together with that of the corresponding reduction products (XII) - (XXV) and of 2,5-diaryl-1,3,4-oxadiazoles with halogen substitution (XXVI) - (XLIII). The results of pharmacological and microbiological examination of the compounds is reported.