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Chemistry of Natural Compounds

, Volume 29, Issue 4, pp 462–466 | Cite as

Mass spectra of pseudoguaianolides related to carpesiolin

  • V. N. Plugar'
  • Ya. V. Rashkes
  • A. Ovezdurdyev
  • I. D. Sham'yanov
Article
  • 24 Downloads

Abstract

The main directions of fragmentation and the EI of six pseudoguaianolides related to carpesiolin have been studied. It has been established that acylation of the OH group at C-6 suppresses the selective breakdown of the guaiane skeleton, while the simultaneous presence of AcO groups at C-2 and C-4 favors the formation of a number of characteristic ions. The hydrogenation of the exomethylene group has no appreciable influence on direction of fragmentation.

Keywords

AcOH Lactone Ring Main Fragment Sodium Tetrahydroborate Acyl Substituent 

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References

  1. 1.
    U. A. Abdullaev, Ya. V. Rashkes, I. D. Sham'yanov, and G. P. Sidyakin, Khim. Prir. Soedin., No. 1, 56–63 (1982).Google Scholar
  2. 2.
    V. N. Plugar', Ya. V. Rashkes, I. M. Sotboeva, and A. Mallabaev, Khim. Prir. Soedin., No. 1, 96–101 (1987).Google Scholar
  3. 3.
    A. Ovezdurdyev, B. Akyev, and Sh. Z. Kasymov, Khim. Prir. Soedin., No. 3, 396–397 (1981).Google Scholar
  4. 4.
    M. K. Makhmudov, B. Toshkhodzhaev, F. B. Zhonkhodzhaeva, and I. D. Sham'yanov, Khim. Prir. Soedin., No. 2, 232 (1993).Google Scholar
  5. 5.
    P. I. Zhakharov, R. I. Evstratova, and K. S. Rybalko, Khim. Prir. Soedin., No. 5, 587 (1971).Google Scholar
  6. 6.
    S. Matsueda, Yakugaku Zasshi,92, 905 (1972); Chem. Abstr.,77, 101921W (1972).CrossRefGoogle Scholar
  7. 7.
    L. Tsai, R. J. Hignet, and W. Herz, J. Org. Chem.,34, No. 4, 945–948 (1969).CrossRefGoogle Scholar
  8. 8.
    A. Ovezdurdyev, N. D. Abdullaev, Sh. Z. Kasymov, and B. Akyev, Khim. Prir. Soedin., No. 5, 568–571 (1987).Google Scholar
  9. 9.
    I. D. Sham'yanov, A. Mallabaev, and G. P. Sidyakin, Khim. Prir. Soedin., No. 4, 442–445 (1978).Google Scholar

Copyright information

© Plenum Publishing Corporation 1994

Authors and Affiliations

  • V. N. Plugar'
  • Ya. V. Rashkes
  • A. Ovezdurdyev
  • I. D. Sham'yanov

There are no affiliations available

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