Fe3O4 Magnetic Nanoparticles (MNPs) as Reusable Catalyst for the Synthesis of Chromene Derivatives Using Multicomponent Reaction of 4‐Hydroxycumarin Basis on Cheletropic Reaction
A series of oxocyclopenta[c]chromenes were synthesized via three component reaction of 4‐hydroxycumarin, dialkyl acetylenedicarboxylate, α‐bromo ketones, and triphenylphosphine in the presence of catalytic amount of Fe3O4 magnetic nanoparticles (MNPs) (15 mol%) under solvent‐free conditions at 70°C....
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Veröffentlicht in: | Journal of heterocyclic chemistry 2017-09, Vol.54 (5), p.2906-2911 |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | A series of oxocyclopenta[c]chromenes were synthesized via three component reaction of 4‐hydroxycumarin, dialkyl acetylenedicarboxylate, α‐bromo ketones, and triphenylphosphine in the presence of catalytic amount of Fe3O4 magnetic nanoparticles (MNPs) (15 mol%) under solvent‐free conditions at 70°C. Facile, green, easy separation of product and catalyst, and high yields of products are advantages of these reactions. |
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ISSN: | 0022-152X 1943-5193 |
DOI: | 10.1002/jhet.2900 |