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. [ABSTRACT FROM AUTHOR]