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  • 1
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Structure of Hypocrellin and its Photooxidation Product PeroxyhypocrellinHypocrellin (1), C30H26O10, a dark red pigment with photodynamic activity toward micro-organisms, was isolated from the fungus Hypocrella bambusae (B. et Br. J. Sacc.). Its perylene-quinone structure was elucidated by carbon-13 and proton NMR spectroscopy and by spectral comparison with the known elsinochrome A (3). The photooxidation product, denoted as peroxyhypocrellin (4), C30H26O12, was identified as an anthracene endo-peroxide within the perylenequinone structure. Confirmation of the hypocrellin structure (1) was achieved by X-ray analysis.
    Notes: Hypocrellin (1), C30H26O10, ein dunkelroter Farbstoff mit photodynamischer Aktivität gegenüber Mikroorganismen, wurde aus dem Pilz Hypocrella bambusae (B. et Br. J. Sacc.) isoliert. Seine Perylenchinon-Struktur wurde mit Hilfe der 13C- und 1H-NMR-Spektren sowie durch Spektrenvergleich mit dem bekannten Elsinochrom A (3) ermittelt. Das Photooxidationsprodukt, Peroxyhypocrellin (4), C30H26G12, besitzt eine Anthracen-endo-peroxid-Anordnung innerhalb der Perylenchinon-Struktur. Eine Bestätigung der Struktur 1 für Hypocrellin wurde durch Röntgen-strukturanalyse erhalten.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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