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N,N-Dimethylation of nitrobenzenes with CO2 and water by electrocatalysis

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Abstract

We have proposed a strategy for the synthesis of N,N-dimethylanilines from nitrobenzene and its derivatives, CO2, and water via an electrochemical reaction under ambient conditions. H+ generated from H2O was used as the hydrogen source. Pd/Co–N/carbon, in which the Pd nanoparticles were supported on Co–N/carbon, was designed and used as the electrocatalyst. It was found that the electrocatalyst was very efficient for the reaction in MeCN solution with 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Bmim]Tf2N) as the supporting electrolyte and 1-amino-methylphosphonic acid (AMPA) as the thermal co-catalyst. A series of control experiments showed that Pd/Co–N/carbon and AMPA cooperated very well in accelerating the reaction. This synthetic route has some obvious advantages, such as using CO2 and water as the reactants, ambient reaction conditions, and high yields of the desired products. This opens up a way to synthesize chemicals by the combination of an electrocatalyst and a thermal catalyst with organic compounds, CO2, and water as the reactants.

Graphical abstract: N,N-Dimethylation of nitrobenzenes with CO2 and water by electrocatalysis

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Publication details

The article was received on 08 Mar 2017, accepted on 07 Jun 2017 and first published on 07 Jun 2017


Article type: Edge Article
DOI: 10.1039/C7SC01058C
Citation: Chem. Sci., 2017, Advance Article
  • Open access: Creative Commons BY license
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    N,N-Dimethylation of nitrobenzenes with CO2 and water by electrocatalysis

    X. Sun, Q. Zhu, J. Hu, X. Kang, J. Ma, H. Liu and B. Han, Chem. Sci., 2017, Advance Article , DOI: 10.1039/C7SC01058C

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