The title compound, C4H7N3O2, formed by oxidation of the parent 4,5-dihydro-5,5-dimethyl-1,2,4-triazol-3-one consists of a planar five-membered ring with the two O atoms displaced slightly on the same side of the ring. Both the azoxy moiety and the amide N atom are involved in conjugation with the carbonyl group. The molecules in the crystal associate into centrosymmetric double-hydrogen-bonded dimers.
4,5-dihydro-5,5-dimethyl-3-oxo-3H-1,2,4-triazole-1-oxide. The unpredicted azoxy-regioisomer
作者:J. G. Schantl、J. Svetlik、V. Kettmann
DOI:10.1007/bf00811087
日期:1994.12
4,5-Dihydro-5,5-dimethyl-3-oxo-3H-1,2,4-triazole (1) is converted to the title azoxy compound 4 by peroxytrifluoroacetic acid. The structure assignment of 4 is based on an X-ray analysis. Ab initio calculations were employed to rationalize the reaction path leading to the triazole-1-oxide 4 and not to the expected regioisomer triazole-2-oxide 3.
Schantl, Joachim G.; Lanznaster, Norbert; Gstach, Hubert, Heterocycles, 1990, vol. 31, # 5, p. 825 - 832
作者:Schantl, Joachim G.、Lanznaster, Norbert、Gstach, Hubert