Abstract
Chalcones and aurones, which are often referred to as the “anthochlor” pigments because many turn red on contact with alkali, are relatively rare types of flavonoids [1]. Detailed spectral analyses, in particular of synthetic chalcones and aurones, have been published elsewhere [2 – 5], but for completeness a number have been included here. The UV spectra of both chalcones and aurones are characterized by an intense Band I and a diminished Band II absorption.
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References
Harborne, J. B.: Comparative biochemistry of the flavonoids, p. 78, 83. London: Academic Press 1967.
Jurd, L., in: The chemistry of flavonoid compounds (edited by T. A. Geissman), p.107 — 155. Oxford: Pergamon Press 1962,#
Geissman, T.A., and J.B. Harborne: J. Am. Chem. Soc. 78, 832 (1956).
Jurd, L., and R.M. Horowitz: J. Org. Chem. 26, 2561 (1961).
Geissman, T.A., and J.B. Harborne: J. Am. Chem. Soc. 77, 4622 (1955).
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Mabry, T.J., Markham, K.R., Thomas, M.B. (1970). The Ultraviolet Spectra of Chalcones and Aurones. In: The Systematic Identification of Flavonoids. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-88458-0_7
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DOI: https://doi.org/10.1007/978-3-642-88458-0_7
Publisher Name: Springer, Berlin, Heidelberg
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