Light activates palladium catalysts to enable radical C-H (hetero)-arylation of heterocycles using simple (hetero)-aryl halides. Without the need of an external photocatalyst, the reaction proceeds under mild conditions with broad functional-group tolerance and high site selectivity, expanding photoactivated palladium catalysis for sustainable C-C bond formation in complex bi-(hetero)-aryl scaffolds.
Senapati et al. (Thu,) studied this question.