Directed Cascade C–H Functionalization/2-Fold Annulation with Vinylcyclopropanes: Access to Tetrahydrobenzo[g]isochromen-10-ones

Rh-catalyzed enaminone directed cascade C-H functionalization/2-fold annulation with vinylcyclopropanes has been accomplished to afford functionalized tetrahydrobenzo[g]isochromen-10-ones. The sequential C-H/C-C functionalization, C-C/C-O bond formation, redox-neutral conditions, functional group tolerance, and late-stage modification of the natural products are important practical features.