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Electrochemical reduction of benzoyl chloride to benzil in ionic liquid BMIMBF 4
Author(s) -
Feng Qiuju,
Huang Kelong,
Liu Suqin,
Wang Hongmei,
Yan Wenbin
Publication year - 2012
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.1946
Subject(s) - benzil , chemistry , ionic liquid , electrolysis , benzoyl chloride , electrochemistry , cyclic voltammetry , chloride , supporting electrolyte , electrolyte , inorganic chemistry , yield (engineering) , bulk electrolysis , ionic bonding , catalysis , electrode , organic chemistry , ion , metallurgy , materials science
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.