Cu2O@PdCu synergistic catalysis for highly effective C–H arylation of azoles

Abstract

An efficient heterogeneous Pd/Cu synergistic catalysis system without a ligand was utilized for C–H arylation of azoles. The reaction exhibits excellent catalytic activity with high functional group tolerance. The synergistic effect between the Cu₂O core and PdCu shell was confirmed, whereas pure PdCu nanocages and Cu₂O exhibited negligible catalytic activity.