Transition-Metal-Free Photoinduced Intramolecular Annulation of 2,3-Di(hetero)arylchromen-4-one
An efficient transition-metal-free photoinduced intracyclization of 4H-chromen-4-ones in EtOH–H2O (7:1, v/v) at ambient temperature for the construction of complicated fused-ring heteroaromatics is established. The reaction proceeds smoothly without requiring any catalysts/additives.
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| Veröffentlicht in: | Organic letters 2017-07, Vol.19 (13), p.3552-3555 |
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| Hauptverfasser: | , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | An efficient transition-metal-free photoinduced intracyclization of 4H-chromen-4-ones in EtOH–H2O (7:1, v/v) at ambient temperature for the construction of complicated fused-ring heteroaromatics is established. The reaction proceeds smoothly without requiring any catalysts/additives. |
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| ISSN: | 1523-7060 1523-7052 |
| DOI: | 10.1021/acs.orglett.7b01531 |