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Development of a Split Bipolar Electrode System for Electrochemical Fluorination of Triphenylmethane
Author(s) -
Miyamoto Kazuhiro,
Nishiyama Hiroki,
Tomita Ikuyoshi,
Inagi Shinsuke
Publication year - 2019
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201801216
Subject(s) - triphenylmethane , electrode , electrochemistry , materials science , chemistry , organic chemistry
To overcome the problem of electrochemical fluorination methods using a large amount of supporting electrolytes and fluorine sources, we employed a split bipolar electrode (s‐BPE) system, in which electrode reactions occur in a low concentration of supporting electrolyte and electricity is monitored. We optimized the electrochemical parameters for the s‐BPE system using a U‐shaped electrochemical cell and investigated the electrochemical fluorination of triphenylmethane as a model substrate in the presence of potassium fluoride (KF) or cesium fluoride (CsF) as a supporting electrolyte and a fluorine source dissolved by the help of poly(ethylene glycol) (PEG) additive. The fluorination of triphenylphoshine was also examined under the optimized conditions.