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Hydrodehalogenation of Aryl Halides through Direct Electrolysis
Author(s) -
Ke Jie,
Wang Hongling,
Zhou Liejin,
Mou Chengli,
Zhang Jingjie,
Pan Lutai,
Chi Yonggui Robin
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201901082
Subject(s) - aryl , halide , chemistry , electrochemistry , electrolysis , catalysis , biphenyl , anode , metal , combinatorial chemistry , inorganic chemistry , organic chemistry , alkyl , electrode , electrolyte
A catalyst‐ and metal‐free electrochemical hydrodehalogenation of aryl halides is disclosed. Our reaction by a flexible protocol is operated in an undivided cell equipped with an inexpensive graphite rod anode and cathode. Trialkylamines n Bu 3 N/Et 3 N behave as effective reductants and hydrogen atom donors for this electrochemical reductive reaction. Various aryl and heteroaryl bromides worked effectively. The typically less reactive aryl chlorides and fluorides can also be smoothly converted. The utility of our method is demonstrated by detoxification of harmful pesticides and hydrodebromination of a dibrominated biphenyl (analogues of flame‐retardants) in gram scale.