Temperature‐Controlled Divergent Synthesis of Tetrasubstituted Alkenes and Pyrrolo[1,2‐a]indole Derivatives via Iridium Catalysis

We have achieved an Ir(III)‐catalyzed temperature‐controlled divergent synthesis of tetrasubstituted alkenes and pyrrolo[1,2‐a]indole derivatives through C−H alkenylation/DG migration and [3+2] annulation, respectively. This method has various advantageous features: a) excellent regio‐ and stereoselectivity and good functional group tolerance, b) broad substrate scope and moderate to excellent yields, c) mild redox‐neutral reaction conditions and operational simplicity. We report an Ir(III)‐catalyzed temperature‐controlled divergent synthesisof tetrasubstituted alkenes and pyrrolo[1,2‐a]indole derivatives through C−H alkenylation/DG migration and [3+2] annulation, respectively. This protocol is characterized by excellent regio‐ and stereoselectivity, broad substrate scope, good functional group tolerance, moderate to excellent yields, mild redox‐neutral reaction conditions and operational simplicity.