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