Mononuclear heterocyclic rearrangements. Part 4 Synthesis and characterization of the E-isomer phenylhydrazone of 3-benzoyl-5-phenyl-1,2,4-oxadiazole |
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| Authors: | Nicol Vivona Michele Ruccia Vincenzo Frenna Domenico Spinelli |
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| Institution: | Nicolò Vivona,Michele Ruccia,Vincenzo Frenna,Domenico Spinelli |
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| 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. |
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