High Active Palladium Composite and Catalytic Applications on the Synthesis of Substituted Aminopyridine Derivatives Through Borrowing Hydrogen Strategy

摘要

An unsymmetrical 2-(diphenylphosphino) aminobenzothiazole (DPA) was used to synthesize a heterogeneous and recyclable palladium composite through co-doping C3N4. The resulting palladium composite (DPA-Pd@g-C3N4) was carefully characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, N-2 sorption isotherms, thermogravimetricanalysis and energy dispersive X-ray spectroscopy. In addition, the composite DPA-Pd@g-C3N4 was successfully applied to the synthesis of N-substituted aminopyridine derivatives from the reaction of 2-aminopyridine and benzyl alcohols through borrowing hydrogen strategy. @@@ [GRAPHICS] @@@ .

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