BTP‐Rh@g‐C3N4 as an efficient recyclable catalyst for dehydrogenation and borrowing hydrogen reactions

Abstract

AbstractHighly active catalysts play an important role in modern catalysis. A novel and efficient ligand benzotriazole‐pyrimidine (BTP) and the corresponding rhodium composite on C3N4 were successfully synthesized. The resulting rhodium composite was fully characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), x‐ray diffraction (XRD), thermogravimetric analysis (TGA), and x‐ray photoelectron spectroscopy (XPS). The obtained composite exhibited good catalytic activity and good recovery performance in the synthesis of quinoxaline from 2‐aminobenzyl alcohol and benzonitrile, and more than 20 quinoxalines were obtained in good yields. Additionally, it also showed that rhodium composite could achieved good catalytic performance in the synthesis of functionalized ketone through borrowing hydrogen strategy.