title: Volatile components from European liverworts Marsupella emarginata, M. aquatica and M. alpina.
abstract: The hydrodistillation products of the liverworts Marsupella emarginata, M. aquatica and M. alpina were investigated by spectroscopic methods. A number of new compounds could be isolated by preparative gas chromatography (GC) and identified by spectroscopic techniques including GC-mass spectrometry, NMR and chemical correlations in conjunction with enantioselective GC. From M. emarginata, in addition to many known compounds, the sesquiterpene hydrocarbon (-)-7-epi-eremophila-1(10),8,11-triene (1) and the sesquiterpene derivatives (-)-4-epi-marsupellol (2), (-)-marsupellol acetate (18), (-)-4-epi-marsupellol acetate (4), (+)-5-hydroxymarsupellol acetate (5) and (-)-9-acetoxygymnomitr-8(12)-ene (24) could be identified. In M. aquatica the sesquiterpene hydrocarbons (-)-myltayl-8(12)-ene (7), ent-(+)-amorpha-4,11-diene (8), (-)-amorpha-4,7(11)-diene (9), the sesquiterpene alcohol (+)-9-hydroxyselina-4,11-diene (10) and (-)-2-acetoxyamorpha-4,7(11)-diene (11) were identified. In M. alpina (-)-trans-selina-4(15),11-dien-5-ol (12), (+)-8,9-epoxyselina-4,11-diene (13) and (+)-cis-selina-4(15),11-dien-5-ol (14) were found as new natural products.
authors.affiliation: Institut für Organische Chemie, Universität Hamburg, Martin-Luther-King Platz-6, D-20146 Hamburg, Germany.
authors.forename: Adewale Martins
authors.initials: AM
authors.lastname: Adio
authors.forename: Claudia
authors.initials: C
authors.lastname: Paul
authors.forename: Wilfried A
authors.initials: WA
authors.lastname: König
authors.forename: Hermann
authors.initials: H
authors.lastname: Muhle
mesh_terms: D005060:Europe; D008401:Gas Chromatography-Mass Spectrometry; D035926:Hepatophyta / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D014835:Volatilization
chemical_list: D009822:Oils, Volatile