Catalytic, asymmetric azidations at carbonyls: achiral and meso-anhydride desymmetrisation affords enantioenriched γ-lactams

Catalytic, asymmetric azidations at carbonyls: achiral and meso-anhydride desymmetrisation affords enantioenriched γ-lactams Non‐Biaryl Atropisomers in Organocatalysis A novel C-5′ substituted cinchona alkaloid-derived catalyst promotes additions of alkyl thiols to nitroolefins with excellent enantioselectivity Highly enantioselective Michael addition of 3-arylthio- and 3-alkylthiooxindoles to nitroolefins catalyzed by a simple cinchona alkaloid derived phosphoramide Highly Enantioselective and Practical Cinchona-Derived Phase-Transfer Catalysts for the Synthesis of α-Amino Acids This work was supported by grants from Aminogen Co. (Korea) through the Research Center of New Drug Development of Seoul National University and the Research Institute of Pharmaceutical Sciences in the College of Pharmacy of Seoul National University. Asymmetric α‐Hydroxylation of β‐Indanone Esters and β‐Indanone Amides Catalyzed by C‐2′ Substituted Cinchona Alkaloid Derivatives A New Trimeric Cinchona Alkaloid as a Chiral Phase-Transfer Catalyst for the Synthesis of Asymmetric α-Amino Acids Catalytic Enantioselective Alkylation of Aldehydes with 3-Bromooxindoles The kinetic resolution of oxazinones by alcoholysis: access to orthogonally protected β-amino acids Cinchona Alkaloid Derived Iodide Catalyzed Enantioselective Oxidative α-Amination of Carbonyl Compounds toward the Construction of Spiroindolyloxindole