Tandem Catalysis of Amines Using Porous Graphene Oxide

Porous graphene oxide can be used
as a metal-free catalyst in the presence of air for oxidative coupling
of primary amines. Herein, we explore a GO-catalyzed carbon–carbon
or/and carbon–heteroatom bond formation strategy to functionalize
primary amines in tandem to produce a series of valuable products,
i.e., α-aminophosphonates, α-aminonitriles, and polycyclic
heterocompounds. Furthermore, when decorated with nano-Pd, the Pd-coated
porous graphene oxide can be used as a bifunctional catalyst for tandem
oxidation and hydrogenation reactions in the N-alkylation
of primary amines, achieving good to excellent yields under mild conditions.