Rh(iii)-catalyzed regioselective C–H activation dialkenylation/annulation cascade for rapid access to 6H-isoindolo[2,1-a]indole

6H-isoindolo[2,1-a]indoles were accessed via a Rh(iii)-catalyzed N-H free indole directed C-H activation dialkenylation/annulation cascade in moderate to excellent yields. This protocol also features: reaction procedures that are insensitive to air and moisture, excellent regioselectivity and good functional group tolerance.