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Naphthopyrones, part II Carbon-13 magnetic resonance spectral studies of some methylnaphthopyran-2-one and methylnaphthopyran-4-one derivatives

Naphthopyrone, 2. Mitt.:13 C-NMR einiger Methylnaphthopyran-2-one und Methylnaphthopyran-4-one

  • Organische Chemie Und Biochemie
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Abstract

Assignments of13C chemical shifts and13C-1H coupling constants are presented for four methylnaphthopyrone derivatives. Differentiation between the benzocoumarin and benzochromone series is best performed by consideration of the carbonyl chemical shift and coupling pattern.

Zusammenfassung

Es werden die Zuordnungen der chemischen Verschiebungen der13C-Resonanzen und der13C-1H-Kopplungen für vier Methylnaphthopyrone diskutiert. Die Unterscheidung zwischen der Benzocumarin- und der Benzochromon-Reihe erfolgt am besten mittels chemischer Verschiebungen und dem Kopplungsmuster.

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Authors and Affiliations

  1. Department of Chemistry, The City University, EC1 V OHB, London, U.K.

    Alan G. Osborne

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  1. Alan G. Osborne
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Osborne, A.G. Naphthopyrones, part II Carbon-13 magnetic resonance spectral studies of some methylnaphthopyran-2-one and methylnaphthopyran-4-one derivatives. Monatsh Chem 115, 749–756 (1984). https://doi.org/10.1007/BF01120970

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  • DOI: https://doi.org/10.1007/BF01120970

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