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  • 1
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 6 (1974), S. 78-84 
    ISSN: 0030-4921
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The 13C-chemical shifts of 6 substituted oxepins have been measured and assigned. The average signals of the oxepins 1a (unsubstituted) and 1d (2,5-dimethyloxepin), which are in equilibrium with the corresponding benzeneoxides, were assigned by temperature dependent signal shifts and line broadening. Finally, the oxepin system is compared with the cycloheptatriene system.
    Notes: Die 13C-chemischen Verschiebungen von 6 substituierten Oxepinen wurden vermessen und zugeordnet. Für die mit den entsprechenden valenztautomeren Benzoloxiden im Gleichgewicht stehenden Oxepine 1a (unsubstituiert) und 1d (2,5-Dimethyl-oxepin) wurden die Mittelwertsignale durch ihre Verschiebung bzw. Verbreiterung in Abhängigkeit von der Temperatur bestimmt. Schließlich werden Vergleiche zum Cycloheptatriensystem gezogen.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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