• Title/Summary/Keyword: fused pyrazole

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Reactions with Heterocyclic Amidines $(Vl)^1$: Synthesis of some new sym. and assym. pyrazolotriazines and pyrazolo[4,5-e]pyrimidine derivatives

  • Ali Elagamey, Abdel Ghani
    • Archives of Pharmacal Research
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    • v.10 no.3
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    • pp.173-178
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    • 1987

  • Several new pyrazolo [1, 5-a]-S-triazine, pyrazolo [4, 5, -elpyrimidine, pyrazolo [1, 5-a] pyrimidine derivatives were synthesized via condensation of 3-antipyrinyl-5-amino-pyrazole (2) with $\beta$$-bifunctional reagents. The azo analogues of pyrazolo [1, 5-a] pyrimidines ; i. e. pyrazolo [5, 1, c]-as-triazine and pyrazolo[5, 1, -c]-as-benzotriazine were synthesized by coupling of diazotized 2-with agents containing active hydrogen.

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