Fig. 1: Metal-catalyzed asymmetric C–H functionalization.

a Directed enantioselective ortho-C–H arylation catalyzed by 4d transition metals. b Cu-catalyzed asymmetric C(sp3)–H functionalization. c Cu-catalyzed asymmetric C(sp2)–H functionalization. d This work: Cu-bisoxazoline-catalyzed asymmetric arylation. NFSI N-fluorobenzenesulfonimide, DTBP 2,6-di-tert-butylpyridine.