Natürliche Allergene, I. Das Auftreten von Falcarinol und Didehydrofalcarinol in Efeu (Hedera helix L.) / Natural Allergenes. I. The Occurrence of Falcarinol and Didehydrofalcarinol in Ivy (Hedera helix L .)
Open Access
- 1 October 1987
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 42 (10) , 1328-1332
- https://doi.org/10.1515/znb-1987-1018
Abstract
From common ivy Hedera helix, subsp. helix and from Hedera helix, subsp. canariensis the highly unsaturated CI7-alcohols falcarinol (1) and the so far unknown didehydrofalcarinol (2) [(3R)-heptadeca-1,9(Z),11(Z),16-tetraene-4,6-diyne-3-ol] was isolated and its structures identified by mass spectrometry and NMR. The (R)-configuration of falcarinol and didehydrofalcarinol was determined after catalytic hydrogenation to 3-heptadecanol by enantioselective capillary gas chromatography. Falcarinol and didehydrofalcarinol effect sensibilization and allergic skin reactions in minute concentrations.Keywords
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