Composition of essential oils of some senecio species.
The composition of the essential oils of Senecio vulgaris, S. jacobaea, S. congestus and S. fuchsii was investigated by means of GLC, CC and GC-MS. The principal constituents differ; S. congestus: 1-tridecene and 1-undecene, S. jacobaea: germacrene D and 1-undecene, S. vulgaris: beta-caryophyllene, alpha-copaene and myrcene, S. fuchsii: anhydro-oplopanone and an unknown sesquiterpene C (15)H (24). In all the oils anhydro-oplopanone is present. The spectra of this compound and of the synthesized anhydro-oplopanols are given.
van Dooren
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Laboratory for Pharmacognosy, State University of Groningen, The Netherlands.
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Tattje
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