▎ 摘 要
In this study, graphene oxide (GO) was modified with N-methyl4-pyridinamine in order to synthesize a novel nitrogencontaining graphene-based material for application as heterogeneous catalyst in organic transformations. To prepare this catalyst system, first, chlorine-functionalized graphene (CFG) was synthesized using reaction of GO and thionyl chloride (SOCl2) and then it was reacted with N-methyl-4-pyridinamine. As a result, aminopyridine fragments connected to the graphene surface covalently via a C-N linker and form graphene grafted N-methyl-4-pyridinamine (G-NMPA) catalyst. The G-NMPA material was characterized using some different techniques and used as a heterogeneous catalyst in acetylation of alcohols. Results of catalyst activity evaluation demonstrate that G-NMPA has high activity in acetylation of alcohols. Furthermore, the catalyst system was reusable at least for 8 times without remarkable decreasing in its catalytic activity.