B(C6F5)3-catalyzed stepwise 1,5-hydride migration/cyclization: diastereoselective construction of carbocyclic β-amino acid derivatives

A stepwise 1,5-hydride migration/cyclization reaction enabled by B(C 6 F 5 ) 3 is established to deliver the corresponding six-membered carbocyclic β-amino acid derivatives with complete diastereoselectivity.