Enantioselective Construction of Single and Vicinal All-Carbon Quaternary Stereocenters through Ion-Pair-Catalyzed 1,6-Conjugate Addition
作者:Yasheng Zhu、Hongliang Wang、Gang Wang、Zehua Wang、Zhaopeng Liu、Lei Liu
DOI:10.1021/acs.orglett.1c02640
日期:2021.9.17
An asymmetric 1,6-conjugate addition to presynthesized δ-aryl-δ-cyano-disubstituted para-quinone methides through bifunctional phosphonium-amide-promoted ion-pair catalysis for acyclic all-carbon quaternarystereocenterconstruction has been described. Both acyclic and cyclic 1,3-dicarbonyls participate in the asymmetricalkylationreaction, furnishing a wide array of diarylmethanes bearing a single