• Title/Summary/Keyword: pyrazoline phenylhydrazone

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Reactions with Maleimides VII: Synthesis of Several New Pyrazolonyl-pyrrolidino[3,4-d]pyrazoline and Pyrazolonyl-pyrolo [3,4-d]pyrazole Derivatives

  • Ghabrial, Sami-S.
    • Archives of Pharmacal Research
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    • v.13 no.4
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    • pp.338-341
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    • 1990

  • Several new pyrazoloyl-pyrrolidino[3, 4-d]pyrazolidines and pyrazolonyl-pyrrolo[3, 4-d] pyrazoles were synthesised via the reaction of N-arylaleimides with the phynylhydrazones of 3-methyl-4-formyl-2-pyrazoline-5-one and 1-phenyl-3-methyl-4-formyl-pyrazolin-5-one and treating of the resulting adducts with chloranil. Structures were based on elemental analyses and spectral data.

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