作者:Chen, Yuemin、Wu, Yunqi、Wang, Guoao、Cui, Feihu、Tang, Haitao、Pan, Yingming
DOI:10.1016/j.cclet.2023.109445
日期:——
without additional oxidants for the cross-dehydrogenative coupling reaction (CDC) of two C(sp)-H bonds is reported. A series of aldehydes including natural products and various substrates containing C(sp)-H bonds including xanthenes, acridines, cycloheptatrienes and even diarylmethane have been shown to undergo asymmetric CDC to afford a series of carbon-carbon bond coupling products with up to 94% yield
报道了一种高效且可扩展的电化学不对称方案,使用无金属催化剂,甚至无需额外的氧化剂,即可进行两个 C(sp)-H 键的交叉脱氢偶联反应 (CDC)。一系列醛,包括天然产物和各种含有 C(sp)-H 键的底物,包括呫吨、吖啶、环庚三烯甚至二芳基甲烷,已被证明经过不对称 CDC,可提供一系列碳-碳键偶联产物,其偶联率高达 94%产率98%。自由基时钟实验等机理研究表明,该反应在电化学条件下通过烯胺进行亲核攻击。