Site‐Selective C–C Cleavage of Benzocyclobutenones Enabled by a Blocking Strategy Using Nickel Catalysis
作者:Jing‐Hong Guo、Yu Liu、Xin‐Cheng Lin、Tian‐Mu Tang、Bi‐Qin Wang、Ping Hu、Ke‐Qing Zhao、Feijie Song、Zhang‐Jie Shi
DOI:10.1002/anie.202106709
日期:2021.8.23
Controlling the chemo- and regioselectivity of transition-metal-catalyzed C−C activation remains a great challenge. The transformations of benzocyclobutenones (BCBs) usually involve the cleavage of C1−C2 bond. In this work, an unprecedented highly selective cleavage of C1−C8 bond with the insertion of alkynes is achieved by using blocking strategy via Ni catalysis, providing an efficient method for
控制过渡金属催化的 C-C 活化的化学和区域选择性仍然是一个巨大的挑战。苯并环丁烯酮 (BCB) 的转化通常涉及 C1-C2 键的断裂。在这项工作中,通过 Ni 催化使用封闭策略实现了前所未有的 C1-C8 键的高选择性裂解和炔烃的插入,为合成 1,8-二取代萘提供了一种有效的方法。值得注意的是,转化后可以很容易地去除封闭基团。