Palladium‐Catalyzed Enantioselective C−H Olefination to Access Planar‐Chiral Cyclophanes by Dynamic Kinetic Resolution
作者:Ziyang Dong、Jia Li、Ting Yao、Changgui Zhao
DOI:10.1002/anie.202315603
日期:2023.12.18
enantioselective C−H olefination of prochiral cyclophanes has been disclosed. The low rotational barrier of less hindered benzene ring in the substrates allows the reaction to proceed through a dynamic kinetic resolution. The chirality of the resulted cyclophanes arises from the bond rotation constraint of the benzene ring around the macrocycle plane, rather than the C−N axis.
首次公开了 Pd(II) 催化的前手性环烷的对映选择性 CH 烯化反应。底物中受阻较少的苯环的低旋转势垒允许反应通过动态动力学拆分进行。所得环烷的手性来自苯环围绕大环平面的键旋转约束,而不是 C−N 轴。