• 文献标题:   Graphene Grafted N-Methyl-4-pyridinamine (G-NMPA): An Efficient Heterogeneous Organocatalyst for Acetylation of Alcohols
  • 文献类型:   Article
  • 作  者:   PANAHI F, FAREGHIALAMDARI R, DANGOLANI SK, KHALAFINEZHAD A, GOLESTANZADEH M
  • 作者关键词:   acetylation, 4dialkylaminopyridine, graphene, heterogeneous catalyst, organocatalyst
  • 出版物名称:   CHEMISTRYSELECT
  • ISSN:   2365-6549
  • 通讯作者地址:   Amirkabir Univ Technol
  • 被引频次:   5
  • DOI:   10.1002/slct.201601578
  • 出版年:   2017

▎ 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.