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Dithranol-Anion: UV/Vis-Spektrum und chemische Reaktivität

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Retzow, A. ; Wiegrebe, Wolfgang
Date of publication of this fulltext: 06 Jul 2010 08:41


Dithranol and its monoacetate as well as aloin and 9-hydroxyanthracen show a bathochromically
shifted band in their electronexcitation spectra, when they are taken in alkaline
solutions. The spectrum of aloin-anion was correlated with the isomerisation of aloin B into
aloin A. These results and the Diels-Alder-reactivity of dithranol-anion indicate that R a a b' s
biochemically highly active species, derived from dithranol, is its anion.

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