Cu(I)-Catalyzed Asymmetric Arylation of Pyrroles with Diaryliodonium Salts toward the Synthesis of N–N Atropisomers
作者:Qi Xu、Huan Zhang、Fang-Bei Ge、Xiao-Mei Wang、Peng Zhang、Chuan-Jun Lu、Ren-Rong Liu
DOI:10.1021/acs.orglett.2c00812
日期:2022.5.6
that copper(I) catalysis using a bis(phosphine) dioxide ligand can catalyze the desymmetric C–H arylation of prochiral bipyrroles. More than 50 nitrogen–nitrogen atropisomers were achieved in good to excellent yields with excellent enantioselectivities (≤97% yield, ≤98% ee). The reaction proceeds under mild conditions with good functional group compatibility on arenes and diaryliodonium salts. Moreover
我们在此报道,使用二氧化二膦配体的铜 (I) 催化可以催化前手性联吡咯的不对称 C-H 芳基化。以优异的产率和优异的对映选择性(≤97% 产率,≤98% ee)实现了 50 多种氮-氮阻转异构体。该反应在温和条件下进行,在芳烃和二芳基碘鎓盐上具有良好的官能团相容性。此外,该原理使得联吡咯的重复芳基化能够在铜催化过程中对映选择性芳基化不同的位置。