D:A-Friedoolean-25-ol () and 25-al () have been synthesised from D:A-friedoolean-7β -ol (). Substituted tetrahydrofuran rings are opened up on treatment with lithium in ethylene-diamine to yield the corresponding saturated alcohols.
D:A-Friedoolean-25-ol()和25-al()是由D:A-Friedoolean-7β -ol()合成的。在
乙二胺中用
锂处理时,打开取代的
四氢呋喃环,得到相应的饱和醇。