Chiral Heterogeneous Scandium Lewis Acid Catalysts for Continuous‐Flow Enantioselective Friedel–Crafts Carbon–Carbon Bond‐Forming Reactions
作者:Yuki Saito、Shū Kobayashi
DOI:10.1002/anie.202112797
日期:2021.12.13
Chiral heterogeneous Sc catalysts that demonstrate excellent activity and selectivity for continuous-flow enantioselective Friedel–Crafts reactions of isatins with indoles have been developed. Noncovalent interactions between chiral Sc complexes and heteropoly acid-anchored amine-functionalized SiO2 as support were utilized for the preparation. Continuous-flow synthesis of a biologically active compound