Asymmetric oxohydroxylation of α-alkyl enoates with potassium permanganate catalyzed by monocationic quaternary...
The three-component reaction of aldehydes, primary aromatic amines, and phenols to produce α-aminobenzylphenols is known as the Betti reaction.
Please find some more reaction examples promoted by Cinchona Alkaloids in our Buchler Chiral Catalyst Search.
Example from literature
Enantiomers of 8-Hydroxyquinoline Derivatives and the Synthesis Thereof. (Puskás et al.; 2019 U.S. Patent No. 10,287,265.)