Magnetic CuFe2O4 Nanoparticles as an Efficient Catalyst for CO Cross‐Coupling of Phenols with Aryl Halides

Ultra magnets: Magnetic CuFe2O4 nanoparticles have been simply prepared and applied as a catalyst in the CO cross-coupling of phenols and aryl halides to form diaryl ethers, an important structural motif in many products, industrial polymers, and biologically active compounds. The catalyst is recycled without a significant loss of catalytic activity.