Title
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Friedel–Crafts alkylation of 4-hydroxycoumarin catalyzed by sulfonic-acid-functionalized pyridinium chloride as a new ionic liquid
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Type
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JournalPaper
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Keywords
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Sulfonic-acid-functionalized pyridinium chloride {[Pyridine–SO3H]Cl} Bis-coumarin 4-hydroxycoumarin Arylaldehyde Ionic liquid
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Abstract
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A green, simple and efficient synthesis of bis-coumarin derivatives via the condensation of 4-hydroxycoumarin with arylaldehydes using sulfonic-acid-functionalized pyridinium chloride {[Pyridine–SO3H]Cl} as a new, homogeneous and reusable catalyst and ionic liquid is reported.
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Researchers
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(Third Researcher), ahmad reza moosavi-zare (Second Researcher), ma z (First Researcher)
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