Exocyclic vinyl ethers derived from -quinols, readily available from aryllithium addition to quinone monoketals, undergo high-yield thermal [1,3]-oxygen-to-carbon migration, yielding spirodienones.
衍生自-喹诺醇的环外
乙烯基醚(可从芳基
锂加成醌单
缩酮)容易地进行高产率的热[1,3]-氧-碳迁移,从而生成螺二烯酮。