Sesquiterpenoid constituents of the liverwort Marsupella aquatica

Autor:	Stephan H. von Reuß, Wilfried A. König, Hermann Muhle, Claudia Paul, Adewale M. Adio
Rok vydání:	2007
Předmět:	Stereochemistry Chemistry Organic Chemistry Enantioselective synthesis Absolute configuration Marsupella aquatica Carbon-13 NMR Catalysis law.invention Inorganic Chemistry law Physical and Theoretical Chemistry Two-dimensional nuclear magnetic resonance spectroscopy Essential oil
Zdroj:	Tetrahedron: Asymmetry. 18:1245-1253
ISSN:	0957-4166
Popis:	Nine new amorphane sesquiterpenoids, (+)-7β-hydroxyamorpha-4,11-diene, (−)-9α-hydroxyamorpha-4,7(11)-diene, (−)-3α-hydroxyamorpha-4,7(11)-diene, (−)-3α-acetoxyamorpha-4,7(11)-diene, (−)-amorpha-4,7(11)-dien-3-one, (+)-2,8-epoxyamorpha-4,7(11)-diene, (+)-5,9-epoxyamorpha-3,7(11)-diene, (−)-2α-hydroxyamorpha-4,7(11)-diene and (−)-2β-acetoxyamorpha-4,7(11)-diene, were isolated from the essential oil of the liverwort Marsupella aquatica , collected near Gaschurn/Montafon, Austria. The isolated compounds and their chemical transformations were investigated using enantioselective GC and extensive spectroscopic studies (HRMS, 1 H, 13 C and 2D NMR). The absolute configuration of most of the isolated compounds were established by conversions to known compounds. In addition, 1 H, and 13 C NMR data of (−)-myltayl-4-ene are reported for the first time.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::71f8f642aa23b79957e8db26a4f56ea4 https://doi.org/10.1016/j.tetasy.2007.05.020 Zobrazit plný text záznamu Full Text from ScienceDirect