1,2,4-Triazoles. XX. Pyrolytic decomposition of ketone hydrazones derived from pyrid-2-ylhydrazine and related bases. Some further examples of the s-triazolo[4, 3-α]pyrazine and s-triazolo[4, 3-a]quinoxaline series |
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Authors: | K. T. Potts S. W. Schneller |
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Abstract: | Pyrolytic decomposition of ketone 2-heterylhydrazones has been shown to be unsatisfactory for the preparation of fused s-triazole derivatives. The introduction of more diversified substituents into the s-triazolo[4, 3-a]pyrazine and s-triazolo[4,3-a]quinoxaline systems has been accomplished and some reactions and spectral characteristics of these ring systems are reported. Isomerization of the s-triazolo[4, 3-a]pyrazine system to the s-triazolo[1,5-a]pyrazine system is described. |
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