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Chemistry of Natural Compounds

, Volume 21, Issue 4, pp 492–502 | Cite as

Features of the splitting out of a methyl radical from lycoctonine alkaloids under electron impact

  • M. S. Yunusov
  • Ya. V. Rashkes
  • B. T. Salimov
  • É. F. Ametova
  • G. V. Fridlyanskii
Article

Abstract

The mass spectra of 53 alkaloids and their derivatives are considered. It is known that the presence of a C6(OCH3)-C7(OH)-C8 (OH) grouping in C19-diterpene alkaloids leads to a high intensity of the (M - 15)+ ions at the expense of the C6(OCH3) group and considerably suppresses the competing processes of forming the [M - OH (OCH3)]+ ions in the alkaloids and the (M - 56)+ ions in the anhydroxy bases. When the above-mentioned grouping is absent, the (M - 15)+ ions are formed mainly by the splitting out of a ĊH3 from a N-ethyl group.

Keywords

Alkaloid Sodium Hydride Aqueous Acetone Lycoctonine Talatisamine 

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Literature cited

  1. 1.
    M. S. Yunusov, Ya. V. Rashkes, V. A. Tel'nov, and S. Yu. Yunusov, Khim. Prir. Soedin., 515 (1969).Google Scholar
  2. 2.
    M. N. Sultankhodzhaev, M. S. Yunusov, and S. Yu. Yunusov, Khim. Prir. Soedin., 481 (1975).Google Scholar
  3. 3.
    S. W. Pelletier and R. Aneja, Tetrahedron Lett., 557 (1967).Google Scholar
  4. 4.
    G. R. Waller, S. D. Sastry, and K. F. Kinneberg, Proc. Oklahoma Acad Sci.,53, 92 (1973).Google Scholar
  5. 5.
    M. S. Yunusov, V. E. Nezhevenko, and S. Yu. Yunusov, Khim. Prir. Soedin., 770 (1975).Google Scholar
  6. 6.
    V. A. Tel'nov, M. S. Yunusov, and S. Yu. Yunusov, Khim. Prir. Soedin., 583 (1970).Google Scholar
  7. 7.
    M. S. Yunusov, Ya. V. Rashkes, and S. Yu. Yunusov, Khim. Prir. Soedin., 85 (1972).Google Scholar
  8. 8.
    A. G. Gonzalez, G. de la Fuente, M. Reina, V. Zabel, and W. H. Watson, Tetrahedron Lett., 1155 (1980).Google Scholar
  9. 9.
    V. N. Aiyar, P. W. Codling, K. A. Kerr, M. N. Benn, and A. J. Jones, Tetrahedron Lett., 483 (1981).Google Scholar
  10. 10.
    A. G. Gonzalez, G. de la Fuente, O. Munguia, Tetrahderon Lett., 4843 (1981).Google Scholar
  11. 11.
    M. S. Yunusov and S. Yu. Yunusov, Khim. Prir. Soedin., 90 (1970).Google Scholar
  12. 12.
    Ya. V. Rashkes and M. S. Yunusov, Khim. Prir. Soedin., 481 (1984).Google Scholar

Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • M. S. Yunusov
  • Ya. V. Rashkes
  • B. T. Salimov
  • É. F. Ametova
  • G. V. Fridlyanskii

There are no affiliations available

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