Polyacetylenes from the rabbitbrush,Chrysothamnus nauseosus |
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Authors: | Allan F. Rose B.A. Butt Tibor Jermy |
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Affiliation: | 1. Yakima Argricultural Research Laboratory, Yakima, WA 98902, U.S.A. |
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Abstract: | Four new polyacetylenes, methyl Z,Z-10-acetoxymatricariate, methyl Z,Z-10-hydroxymatricariate, methyl 2(Z)-10-acetoxy-8,9-epoxydecen- 4,6-diynoate and methyl 2(Z)-10-hydroxy-8,9-epoxydecen-4,6-diynoate, were isolated from the composite Chrysothamnus nauseosus. These compounds are naturally-occurring antifeedants of the Colorado potato beetle. The assigned structures rest on their spectroscopic properties as well as chemical interconversions. |
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Keywords: | Compositae rabbitbrush new polyacetylenes insect antifeedant substances isolation structure determination |
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