Synthesis of new 4-aroyl-pyrano[c]chromenes via a one-pot, three-component reaction based on aryl glyoxals

Synthesis of new 4-aroyl-pyrano[c]chromenes via a one-pot, three-component reaction based on aryl glyoxals

A new library of pyrano[c]chromenes containing an aroyl group has been synthesized by a novel multicomponent process involving the reaction of various aryl glyoxals with 4-hydroxycoumarin and malononitrile. The reactions were catalyzed efficiently by ammonium dihydrogen phosphate to yield the desire...

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Veröffentlicht in:Tetrahedron letters 2014-07, Vol.55 (28), p.3753-3755
Hauptverfasser: Khodabakhshi, Saeed, Karami, Bahador, Eskandari, Khalil, Farahi, Mahnaz
Format: Artikel
Sprache:eng
Schlagworte:
4-Hydroxycoumarin
Ammonium dihydrogen phosphate
Aromatic compounds
Aryl glyoxal
Libraries
Malononitrile
Synthesis (chemistry)
Tetrahedrons
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Zusammenfassung:A new library of pyrano[c]chromenes containing an aroyl group has been synthesized by a novel multicomponent process involving the reaction of various aryl glyoxals with 4-hydroxycoumarin and malononitrile. The reactions were catalyzed efficiently by ammonium dihydrogen phosphate to yield the desired products in good to excellent yields.
ISSN:0040-4039
1873-3581
DOI:10.1016/j.tetlet.2014.05.072