Nickel-catalyzed sequential 1,2-N-migration/BCBs ring-opening to access spirocyclobutyl β-amino acid esters

Hetero-atom migration strategy is a powerful tool to access complex molecules. Herein, we disclosed a cascade radical 1,2-N-migration/ring-opening of N-aryl bicyclobutyl amides (BCBs) with β-bromo α-amino acid esters by cooperative...