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
  • 32 Downloads

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 

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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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