Abstract
The leaf essential oils of the two chemotypes of Eugenia reinwardtiana (Blume) DC growing in Australia have been investigated. Chemotype 1, isolated in 0.2% yield, w/w, dry weight, contained major amounts of α-pinene (10-26%), limonene (1–15%), β-caryophyllene (0.7–11%), α-humulene (0.9–16%) and bicyclogermacrene (1–23%). The second chemotype, found only on coastal dunes SW of Lockerbie Qld, and isolated in 0.4–0.6% (w/w, dry weight), contained α-pinene (tr −8.5%) β-caryophyllene (12–27%) and α-humulene (1–17%) as the major terpenes. This chemotype also contained the novel aliphatic diketone, 2-butyl-2,4,4-trimethyl-5-methoxycyclohex-5-en-1,3-dione (18–33%), whose structure determination is reported herein.
Keywords
References
Supplementary Material
Please find the following supplemental material available below.
For Open Access articles published under a Creative Commons License, all supplemental material carries the same license as the article it is associated with.
For non-Open Access articles published, all supplemental material carries a non-exclusive license, and permission requests for re-use of supplemental material or any part of supplemental material shall be sent directly to the copyright owner as specified in the copyright notice associated with the article.
