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Title
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Application of a biological‐based nanomagnetic catalyst in the synthesis of bis‐pyrazols and pyrano[3,2‐c]pyrazoles
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Type
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JournalPaper
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Keywords
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4,4′‐(arylmethylene)bis(1H–pyrazol‐5‐ol), nanomagnetic catalyst, pyrano[3,2‐c] pyrazole, solvent‐free condition
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Abstract
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{Fe3O4@SiO2@(CH2)3‐thiourea dioxide‐SO3H/HCl}, a newly reported nanomagnetic core–shell supported solid acid catalyst, was successfully employed in the preparation of 4,4′‐(arylmethylene)bis(1H–pyrazol‐5‐ol) and pyrano[3,2‐c]pyrazole derivatives. The presented methods are very efficient and high‐yielding. Also, the catalyst exhibited powerful potential for reusability in both types of reactions.
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Researchers
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(Second Researcher), (Fourth Researcher)
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