Synthesis of 2,4-Disubstituted Azetidines

Angewchem

Cinchona Alkaloid Amide Catalyzed Enantioselective Formal [2+2] Cycloadditions of Allenoates and Imines: Synthesis of 2,4-Disubstituted Azetidines
Jean-Baptiste Denis, Géraldine Masson, Pascal Retailleau and Jieping Zhu