Eur. J. Chem. volume 7, issue 3, P347-351 2016 DOI: 10.5155/eurjchem.7.3.347-351.1473
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Douaa Salman AlMarzouq, Omniya Sayed Zaky, Abdulaziz Abdulrazaq AlNajjar, Kamal Usef Sadek
Abstract:

Pyrazole molecules are in the forefront of organic chemistry due to their various encompass substituents, which have many biological activity sequence. The biological and medicinal activities of pyrazolo[1,5-a]pyrimidines have received considerable interest in this regard. We reported here a comparison between reaction of 4-phenylazo-3,5-diaminopyrazole (4) with ethyl propiolate (15), dimethylacetylene dicarboxylate (20), diethyl fumarate (25) and benzylidenemalononitrile (11) in the presence of catalytic …

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