4-Halogenocycloheptatrienones can be prepared from the Δ2- and Δ3-norcarenes (1), (2), and (3) by an allylic oxidation-dehydrohalogenation sequence; evidence for the intermediacy of the bicyclic enones (4)–(7) in the formation of the troponoid skeleton is presented.
3-和4- Halogenocycloheptatrienones可以从Δ制备2 -和Δ 3个-norcarenes(1),(2)和(3)由烯丙基氧化脱卤化氢序列; 提出了双环烯酮(4)–(7)在肌
钙蛋白骨架形成中的中间证据。