Mononuclear heterocyclic rearrangements. Part 4 Synthesis and characterization of the E??isomer phenylhydrazone of 3??benzoyl??5??phenyl??1, 2, 4??oxadiazole

…, M Ruccia, V Frenna, D Spinelli

Index: Vivona, Nicolo; Ruccia, Michele; Frenna, Vincenzo; Spinelli, Domenico Journal of Heterocyclic Chemistry, 1980 , vol. 17, p. 401 - 402

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Citation Number: 20

Abstract

Abstract 3-Benzoyl-5-phenyl-1, 2, 4-oxadiazole (I) with phenylhydrazine in acetic acid gives the two geometrical isomers, phenylhydrazones II-Z and II-E, which have been characterized by uv-visible, ir, and nmr spectra. The possible II-E⇌ II-Z isomerization as well as the rearrangement of II-Z and of II-E into 2, 5-diphenyl-4-benzoylamino-1, 2, 3-triazole (III) has been pointed out.