6533b852fe1ef96bd12ab60b

RESEARCH PRODUCT

Mononuclear heterocyclic rearrangements. Part III. Rearrangement of theP-methoxyphenylhydrazone and them-nitrophenylhydrazone of 3-benzoyl-5-phenyl-1,2,4-oxadiazole in dioxane/water in thepS+range 3.8-11.5

Nicolò VivonaDomenico SpinelliVincenzo FrennaMichele RucciaAntonino Corrao

subject

Part iiiSolventRange (particle radiation)chemistry.chemical_compoundchemistryOrganic ChemistryPolymer chemistryOxadiazole

description

The rates of the mononuclear heterocyclic rearrangement of the p-methoxyphenylhydrazone (Ib) and the m-nitrophenylhydrazone (1c) of 3-benzoyl-5-phenyl-1,2,4-oxadiazole have been measured in the range of pS+ 3.8–11.5 (solvent: dioxane/water 1:1, v:v) and compared with those of the unsubstituted phenylhydrazone (Ia). The obtained results show that in the base-catalyzed range, electron-repelling as well as electron-withdrawing substituents accelerate the rearrangement rates.

https://doi.org/10.1002/jhet.5570160231