Electrochemical reduction of benzoyl chloride to benzil in ionic liquid BMIMBF 4

A new electrochemical procedure for the electrocatalytic dimerisation of benzoyl chloride in ionic liquid, 1‐butyl‐3‐methylimidazoliumtetrafluoborate, to benzil was investigated for the first time. The electrochemical behavior of benzoyl chlorides in BMIMBF 4 was studied by cyclic voltammetry with a...

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Bibliographic Details
Published in:Journal of physical organic chemistry 2012-06, Vol.25 (6), p.506-510
Main Authors: Feng, Qiuju, Huang, Kelong, Liu, Suqin, Wang, Hongmei, Yan, Wenbin
Format: Article
Language:English
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Summary:A new electrochemical procedure for the electrocatalytic dimerisation of benzoyl chloride in ionic liquid, 1‐butyl‐3‐methylimidazoliumtetrafluoborate, to benzil was investigated for the first time. The electrochemical behavior of benzoyl chlorides in BMIMBF 4 was studied by cyclic voltammetry with a reduction peak at −1.2 V (vs Ag). The electrolysis experiments were carried out in an undivided cell under mild conditions without any toxic solvents, catalysts and supporting electrolytes, creating benzil at a moderate yield (51%). The results showed that the yields were strongly affected by various factors: temperature, working potential, electrode material. Moreover, the ionic liquid was successfully recycled for this reaction. Copyright © 2011 John Wiley & Sons, Ltd.
ISSN:0894-3230
1099-1395
DOI:10.1002/poc.1946