Asymmetric Organocatalytic Direct C(sp2)-H/C(sp3)-H Oxidative Cross-Coupling by Chiral Iodine Reagents

An asymmetric organocatalytic direct CH/CH oxidative coupling reaction of N-1,N-3-diphenylmalonamides has been well established by using chiral organoiodine compounds as catalysts, wherein four CH bonds were stereoselectively functionalized to give structurally diverse spirooxindoles with high levels of enantioselectivity. More importantly, the findings indicated that chiral hypervalent organoiodine reagents can serve as alternative catalysts for the creation of enantioselective functionalization of inactive CH bonds.