Sesquiterpene constituents of the liverwort Calypogeia muelleriana
作者:Ute Warmers、Kolja Wihstutz、Nils Bülow、Christiane Fricke、Wilfried A König
DOI:10.1016/s0031-9422(98)00283-0
日期:1998.11
The lipophilic constituents of the liverwort Calypogeia muelleriana were investigated. A new sesquiterpene hydrocarbon, maali-1,3-diene, and two sesquiterpene alcohols with an aromadendrane skeleton, 3-hydroxyledene and 4,5-dehydroviridiflorol, were isolated and identified. The structure elucidation was carried out mainly by NMR spectroscopic techniques ((1)H-, (13)C-, (1)H(1)H-COSY-, HMQC-, HMBC-
A process for preparing .beta.-bourbonene which comprises irradiating internally or externally an essential oil containing germacrene D, such as ylang-ylang oil, cananga oil, the essential oil of Solidago altissima L., the essential oil of Solidago gigantea Aiton var. leiophylla Fern., with the light of low pressure or high pressure mercury lamp to obtain .beta.-bourbonene.
一种制备β-波旁烯的方法,包括辐照含有生育烷D的精油,例如依兰依兰油、依兰油、高杆菊(Solidago altissima L.)精油、大花高杆菊(Solidago gigantea Aiton var. leiophylla Fern.)精油,使用低压或高压汞灯的光辐照内部或外部,以获得β-波旁烯。
Stereospecific Synthesis of 3-Oxo-α-bourbonene and the Cisoid Isomer for Structural Determination of the Toxic Component of<i>Lansium domesticum</i>
作者:Tadao Uyehara、Ichiro Suzuki、Yoshinori Yamamoto
DOI:10.1246/bcsj.61.2672
日期:1988.7
The cis-cisoid-cis isomer of 3-oxo-α-bourbonene, (1), the original structure proposed for the toxic principle of Lansium domesticum, has been prepared from (−)-mintsulfide. Neither spectral data of 1 nor of 3-oxo-α-bourbonene itself, derived from β-bourbonene, are not identical with those of the toxic componet.