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Chemistry of Natural Compounds

, Volume 24, Issue 5, pp 612–614 | Cite as

Cyclization and rearrangement of diterpenoids. VII. Composition of the hydrocarbon fraction of a mixture of the products of cyclization of manool and sclareol by ordinary acids

  • N. D. Ungur
  • A. N. Barba
  • P. F. Vlad
Article

Abstract

The hydrocarbon fractions of the products of the cyclization of manool and sclareol by a mixture of conc. sulfuric and formic or acetic acids have been investigated. It has been established that they contain, in addition to the Δ8/9-pimaradiene, Δ8(9)-isopimaradiene, roasadiene, and 13-epirosadiene identified previously, the tetracyclic hydrocarbons (1R, 2S, 7S, 11S, 12R, 13R)-2, 6, 6, 11, 13-pentamethyl-tetracyclo [10.2.1.01.10.02.7] pentadeca-9-ene and (1S, 2R, 11S, 12R, 1R)-2, 7, 7, 11, 15-pentamethyltetracyclo[10.2.1.02.11.03.8] pentadeca(8)-ene.

Keywords

Acetic Acetic Acid Organic Chemistry Hydrocarbon Hydrocarbon Fraction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Publishing Corporation 1989

Authors and Affiliations

  • N. D. Ungur
  • A. N. Barba
  • P. F. Vlad

There are no affiliations available

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