Claisen Rearrangement Strategy in Alkenyl Dihydropyran Leading to Total Synthesis of (+)-α-Vetispirene and (−)-Agarospirol
作者:Atsuo Nakazaki、Susumu Kobayashi
DOI:10.1246/cl.2007.42
日期:2007.1
Total synthesis of (+)-α-vetispirene and (-)-agarospirol based on a Claisen rearrangement has been achieved. This is the first example of a Claisen rearrangement in an enantio-enriched alkenyl bicyclic dihydropyran system with perfect asymmetric transmission.
(+)-1(10)-Spirovetiven-7β-ol from the liverwort Lepidozia reptans
作者:Angela Rieck、Nils Bülow、Stefan Jung、Yücel Saritas、Wilfried A. König
DOI:10.1016/s0031-9422(96)00482-7
日期:1997.2
The structure of a new sesquiterpene alcohol from the liverwortLepidozia reptans has been established as 1(10)-spirovetiven-7β-ol by means of spectroscopic methods and chemical conversion. The configuration of the sesquiterpene was proved by enantioselective gas chromatography. The sesquiterpene alcohol was previously described as a constituent of Lepidozia reptans without further investigation of the