Journal of the American Oil Chemists’ Society

, Volume 48, Issue 9, pp 455–461 | Cite as

Mass spectra of diterpene resin acid methyl esters

  • Teh-Liang Chang
  • Thomas E. Mead
  • Duane F. Zinkel


The mass spectra of 35 tricyclic, diterpene resin acid methyl esters were examined. It was found that unsaturation substantially influenced the initial fragmentation. The carbomethoxy group is readily eliminated, with the positive charge usually being retained in the cyclic fragment. No significant differences were noticed among stereoisomers.


Base Peak Resin Acid Methyl Formate Abietane Consecutive Loss 
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Copyright information

© AOCS 1971

Authors and Affiliations

  • Teh-Liang Chang
    • 1
  • Thomas E. Mead
    • 1
  • Duane F. Zinkel
    • 2
  1. 1.Central Research LaboatoryAmerican Cyanamid CompanyStamford
  2. 2.Forest Products LaboratoryUSDAMadison

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