Synthesis of benzo[f]coumarins from 2-trifluoroacetyl-1H-benzo[f]chromenes and 2-naphthols
A series of 3 H -benzo[ f ]chromen-3-ones containing the (2-hydroxy-1-naphthyl)methyl or 2-hydroxybenzyl substituent in position 2 was prepared by the reaction of 2-trifluoroacetyl-1 H -benzo[ f ]chromenes with 2-naphthols in the presence of DBU. The reaction comprises 1,4-addition and intramolecula...
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Veröffentlicht in: | Chemistry of heterocyclic compounds (New York, N.Y. 1965) N.Y. 1965), 2016-12, Vol.52 (12), p.1012-1016 |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
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Zusammenfassung: | A series of 3
H
-benzo[
f
]chromen-3-ones containing the (2-hydroxy-1-naphthyl)methyl or 2-hydroxybenzyl substituent in position 2 was prepared by the reaction of 2-trifluoroacetyl-1
H
-benzo[
f
]chromenes with 2-naphthols in the presence of DBU. The reaction comprises 1,4-addition and intramolecular haloform type reaction followed by opening of the dihydropyran ring. |
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ISSN: | 0009-3122 1573-8353 |
DOI: | 10.1007/s10593-017-2001-4 |