Synergistic catalysis on Fe–Nx sites and Fe nanoparticles for efficient synthesis of quinolines and quinazolinones via oxidative coupling of amines and aldehydes

A heterogeneous nanocomposite of Fe–Fe₃C nanoparticles and Fe–Nx sites on N-doped porous carbon allows for efficient synthesis of quinolines and quinazolinones via oxidative coupling of amines and aldehydes in aq. solution using H₂O₂ as the oxidant.