Axially Chiral 1,1'‐Binaphthyl‐2‐Carboxylic Acid (BINA‐Cox) as Ligands for Titanium‐Catalyzed Asymmetric Hydroalkoxylation
作者:Sebastian L. Helmbrecht、Johannes Schlüter、Max Blazejak、Lukas Hintermann
DOI:10.1002/ejoc.201901895
日期:2020.4.16
1'‐biaryl‐2‐carboxylic acids, a catalyst for the asymmetric addition of phenolic hydroxyl to non‐activated alkene at hightemperature (240 °C) is formed. This work systematically develops scalable syntheses of variably decorated, enantiopure 1,1'‐biaryl‐2'‐carboxylic acids, which are then tested as steering ligands in intramolecular asymmetric catalytic hydroalkoxylation reactions.