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  • 1
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 25 (1987), S. 975-980 
    ISSN: 0749-1581
    Keywords: 1H NMR ; 13C NMR ; Zearalenone α-zearalenol ; β-zearalenol ; Conformation ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The carbon and proton spectra for zearalenone and its two C-6′ alcohol derivatives have been assigned using 2D techniques along with NOE difference spectra and the LIS of the dimethoxy derivative of the β-alcohol. Low temperature and relaxation time studies on the latter compound support the existence of only one solution conformer for each molecule. Molecular mechanics calculations for each molecule predict the existence of several low energy conformers which differ in energy by less than 3 kcal/mol; however, barriers to conformational interchange could not be estimated. Partial analysis of the proton spectra allows a comparison of the NMR parameters with the MM derived conformations and with x-ray structural data. The solution conformations of zearalenone and α-zearalenol are closely related to the solid state conformations.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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