abundant, and cost-effective Co(III)-catalyzed redox-neutral [4 + 2]-annulation of aromatic sulfoxonium ylides with 1,3-diynes providing useful substituted 1-naphthol derivatives in a regioselective manner is described. Further, the prepared 1-naphthols having internal alkyne were converted into useful polycarbocyclic molecules and spiro-dienone derivatives in good-to-excellent yields. A possible reaction
描述了空气稳定、丰度高且具有成本效益的 Co(III) 催化的氧化还原中性 [4 + 2] - 芳族氧化鎓叶立德与 1,3-二炔的环化,以区域选择性方式提供有用的取代 1-
萘酚衍
生物. 此外,制备的具有内部
炔烃的 1-
萘酚以良好至优异的产率转化为有用的多碳环分子和螺二烯酮衍
生物。
氘标记和动力学同位素标记研究提出并支持了将邻位C-H 活化作为关键步骤的可能反应机制。