Electrolyte free electro-organic synthesis: The cathodic dimerisation of 4-nitrobenzylbromide in a micro-gap flow cell

P He, P Watts, F Marken, S J Haswell

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46 Citations (Scopus)

Abstract

The electrochemical reduction of 4-nitrobenzylbromide is studied in NN-dimethylformamide solution in the presence and in the absence of intentionally added supporting electrolyte. By conventional voltammetry it is shown that an ECE-type reaction occurs with formation of the dimer 4,4'-dinitrodibenzyl irrespective of the presence of supporting electrolyte. Next, a micro-gap flow cell is characterised and employed for the preparative electro-reduction in the absence of supporting electrolyte. Excellent yields of the dimer are obtained and explained based on a self-propagation mechanism. (c) 2005 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)918-924
Number of pages7
JournalElectrochemistry Communications
Volume7
Issue number9
DOIs
Publication statusPublished - 2005

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