Archives of Pharmacal Research
- Volume 13 Issue 4
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- Pages.338-341
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- 1990
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- 0253-6269(pISSN)
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- 1976-3786(eISSN)
Reactions with Maleimides VII: Synthesis of Several New Pyrazolonyl-pyrrolidino[3,4-d]pyrazoline and Pyrazolonyl-pyrolo [3,4-d]pyrazole Derivatives
Abstract
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.
Keywords
- N-Arymaleimide;
- pyrazoline phenylhydrazone;
- cycloadditon;
- pyrazolonyl-pyrrolidino[3,4-d]pyrazoline;
- pyrazolony pyrrolo[3,4-d]pyrazole deivatives