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Title
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Synthesis and Application of Nano Vanadium‐Oxo Pyridiniumporphyrazinato Sulfonic Acid for Synthesizing Pyrazole and Dihydropyrano[2,3]pyrazole Derivatives
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Type
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JournalPaper
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Keywords
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dihydropyrano[2,3]pyrazole · molten salt · multicomponent reactions · phthalocyanine · pyrazole · vanadium-oxo pyridiniumporphyrazinato sulfonic acid
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Abstract
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In this study, we presented a description of designing and synthesizing an original nano‐N‐sulfonated (‐SO3H) phthalocyanine molten salt (vanadium‐oxo pyridiniumporphyrazinato sulfonic acid) [VO(TPPASO3H)]Cl as a recyclable and efficient heterogeneous catalyst with thermal stability for synthesizing pyrazole and dihydropyrano[2,3]pyrazole derivatives. After recycling and reapplying five times, this catalyst indicated no significant decrease in the catalytic activity.
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Researchers
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avat (arman) Taherpour (Fourth Researcher), ma z (Third Researcher), (First Researcher), Maliheh Safaiee (Second Researcher)
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