A chiral disulfonimide-catalyzed asymmetric synthesis of δ-amino-β-keto esters via
a vinylogous Mukaiyama–Mannich reaction of the Chan diene with N-Boc imines has been developed. The desired products were obtained in good to excellent
yields and enantioselectivities.
Key words
chiral disulfonimides - δ-amino-β-keto esters - Chan diene -
N-Boc imines - vinylogous Mukaiyama–Mannich reaction