Chemistry:Pinocarvone

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Pinocarvone is a terpenoid. Structurally, it is a bicyclic ketone.

Occurrence

hyssop plant

Pinocarvone is an important component in the essential oils of Eucalyptus globulus.[1] It is also found at a few percent in essential oils of other eucalyptus species.[2] In several studies, it has been detected as a component of 25% or even 36% in hyssop oil.[3]

Pinocarvone is also present in the pheromone of the Western Pine Beetle (Dendroctonus brevicomis) along with frontalin, verbenone, and myrtenol.[4]

Properties and reactions

Under the influence of light or heat, pinocarvone polymerizes by reaction of its double bond to form a resin. Polymerization can also be carried out deliberately, for example by heating the compound in anisole.[1]

References

  1. 1.0 1.1 Wilhelm Treibs, Harry Schmidt (May 1949), "Über das polymere Pinocarvon", Chemische Berichte 82 (3): 218–224, doi:10.1002/cber.19490820310 
  2. Jorge A. Pino, Rolando Marbot, Rolando Quert, Humberto García (January 2002), "Study of essential oils of Eucalyptus resinifera Smith, E. tereticornis Smith and Corymbia maculata (Hook.) K. D. Hill & L. A. S. Johnson, grown in Cuba", Flavour and Fragrance Journal 17 (1): 1–4, doi:10.1002/ffj.1026 
  3. Hakan Özer, Fikrettin Şahin, Hamdullah Kılıç, Medine Güllüce (January 2005), "Essential oil composition of Hyssopus officinalis L. subsp. angustifolius (Bieb.) Arcangeli from Turkey", Flavour and Fragrance Journal 20 (1): 42–44, doi:10.1002/ffj.1421 
  4. L.M. Libbey, M.E. Morgan, T.B. Putnam, J.A. Rudinsky (August 1974), "Pheromones released during inter- and intra-sex response of the scolytid beetle Dendroctonus brevicomis", Journal of Insect Physiology 20 (8): 1667–1671, doi:10.1016/0022-1910(74)90095-X, PMID 4853618, Bibcode1974JInsP..20.1667L