Mild construction of N-fused polycyclic compounds via Rh(Ⅲ)/EosinY co-catalyze C—H activation

The construction of N-fused polycyclic compounds at room temperature via the combination of transition-metal catalyst and photocatalyst has been reported.This novel work has successfully realized LED irradiated C—H activation of iodonium ylides.The strategy shows wide substrate scope and ideal functional group tolerance.Our work would be useful for the construction of various heterocyclic compounds.