A novel, magnetically separable catalyst was synthesized by the immobilization of Pd on magnetite nanoparticles (MNPs) coated with dithizone. The activity of this catalyst was examined for the synthesis of various biaryls via the C–C coupling reaction of aryl halides and sodium tetraphenylborate or phenylboronic acid under mild reaction conditions. Fe3O4/SiO2–DTZ–Pd was characterized by transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, energy dispersive X-ray spectroscopy, vibrating sample magnetometer, and scanning electron microscopy.
