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Chemistry of Natural Compounds

, Volume 19, Issue 5, pp 532–537 | Cite as

Circular dichroism of quinoid pigments from Far Eastern representatives of the family Boraginaceae

  • A. A. Nabiullin
  • S. A. Fedoreev
  • T. N. Deshko
Article
  • 45 Downloads

Abstract

The electronic absorption and circular dichroism (CD) spectra of ten natural and modified quinoid pigments are described. An assignment has been made of the dichroic absorption in the 250–600 nm region of the CD spectra of the pigments investigated. It has been shown that in the solution of stereochemical questions for such compounds the most informative region of the CD spectrum is the 250–350 nm interval.

Keywords

Circular Dlchroism Circular Dlchroism Spectrum Naphthoquinone Shikonin Juglones 

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Literature cited

  1. 1.
    S. A. Fedoreev, O. E. Krivoshchekova, V. A. Denisenko, P. G. Gorovoi, and O. B. Maksimov, Khim. Prir. Soedin., 625 (1979).Google Scholar
  2. 2.
    I. Singh, R. T. Ogata, R. R. Moore, C. W. J. Chang, and P. J. Sheuer, Tetrahedron,24, 6053 (1968).CrossRefGoogle Scholar
  3. 3.
    C. J. P. Spruit, Res. Trav. Chim.,68, 309 (1949).CrossRefGoogle Scholar
  4. 4.
    Y. N. Shukla, J. S. Tandon, D. S. Bhakuni, and M. M. Dhar, Phytochemistry,10, 1909 (1971).CrossRefGoogle Scholar
  5. 5.
    H. Brockmann, Ann. Chem.,521, 1 (1936).CrossRefGoogle Scholar
  6. 6.
    R. A. Morton, in: Biochemistry of Quinones (ed. R. A. Morton), Academic Press, New York (1965), pp. 23–66.Google Scholar
  7. 7.
    O. E. Krivoshchekova, S. A. Fedoreev, V. A. Denisenko, O. B. Maksimov, and G. P. Gorovoi, Khim. Prir. Soedin., 726 (1976).Google Scholar
  8. 8.
    S. A. Fedoreev and A. A. Nabiullin, Vth Youth Conference on Synthetic and Natural Physiologically Active Compounds. Abstracts of Lectures [in Russian], Erevan (1980).Google Scholar

Copyright information

© Plenum Publishing Corporation 1984

Authors and Affiliations

  • A. A. Nabiullin
  • S. A. Fedoreev
  • T. N. Deshko

There are no affiliations available

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