Structure Identification: |
Phytochemistry, 1970, 9(6):1325-1340. | Terpenes and sesquiterpenes of Chamaecyparis nootkatensis leaf oil.[Reference: WebLink] | The composition of the leaf oil of Chamaecyparis nootkatensis is reported.
METHODS AND RESULTS:
The terpene fraction consists of (-)-α-pinene, (+)-3-carene and (+)-limonene together with small amounts of ()-β-pinene, myrcene and two unidentified hydrocarbons. The sesquiterpene fraction is largely a mixture of levoratory α-, β-, and γ-curcumenes with lesser amounts of ()-α-copaene, (+)-α-ylangene, (+)-Longifolene, (+)-δ-cadinene, (+)-γ-cadinene, (+)-β-bisabolene, β-farnesene, (+)- trans-nerolidol and three substances which have not been fully characterized. One of these appears to be a mixture of diastereomeric "calamenenes"; the others are new sesquiterpenes which we designate as α- and β-alaskene.
CONCLUSIONS:
Valencene and nootkatene, previously reported from the heartwood oil of this species, were not detected in the leaf oil. The biogenetic and chemotaxonomic implications of these results are discussed. |
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