Rhodium(III)-Catalyzed Unreactive C(sp3)−H Alkenylation of N-alkyl-1H-pyrazoles with Alkynes

The first example of pyrazole-directed rhodium(III)-catalyzed unreactive C(sp3)−H alkenylation with alkynes has been described, which showed relatively broad substrate scope with good functional group compatibility. Moreover, we demonstrated that the transitive coordinating center pyrazole could be easily removed under mild conditions.