作者:Masatake Niwa、Masanobu Iguchi、Shosuke Yamamura
DOI:10.1246/bcsj.49.3137
日期:1976.11
From a biogenetic point of view, acid- or base-catalyzed cyclizations of epoxygermacrones (2, 23, and 33) were carried out. In most cases, the stereospecific cyclizations of these epoxygermacrones took place to give many compounds with an 11-oxabicyclo[5.3.1]undecane system, cadinane-type, selinane-type or guaiane-type compounds depending on the kinds of reagents and solvents. The formation process
从生物遗传学的角度来看,进行了环氧germacrones(2、23和33)的酸或碱催化环化。在大多数情况下,根据试剂和溶剂的种类,这些环氧germacrones 的立体有择环化发生了许多具有11-氧杂双环[5.3.1]十一烷系统、cadinane 型、selinane 型或guaiane 型化合物。将详细讨论每种环化产物的形成过程。