Aerobic Oxidative C–H Olefination of Cyclic N-Sulfonyl Ketimines Catalyzed by a Rhodium Catalyst
摘要:
A useful method for the synthesis of ortho-olefinated ketimines from readily accessible cyclic N-sulfonyl ketimines and various olefins has been achieved. The reactions proceeded by Rh(III)-catalyzed, N-sulfonyl ketimine-directed C-H cleavage under aerobic conditions. Further synthetic transformations of the olefinic products led to interesting heterocyclic molecules.