Ionic liquids for the electroreductive radical cyclization of unsaturated bromo derivatives catalyzed by Nickel(II) complexes

M. J. Neto, E. Duñach, J. M S S Esperança, A. P. Esteves, M. J. Medeiros, M. M. Silva

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Abstract

Room temperature ionic liquids, such as N,N,N-trimethyl-N-(2-hydroxyethyl)ammonium bis(trifluoromethylsulfonyl)imide, [N1 1 1 2(OH)][NTf2] and 1-ethyl-3-methylimidazolium ethylsulfate, [C2mim][C2SO4], have been used for the electroreductive intramolecular cyclization of unsaturated bromo derivatives 1 in Ni(II)-catalyzed reactions. Controlled-potential electrolyses led to five-membered-ring compounds in moderate to good yields. Cyclic voltammetry in these ionic liquid systems was also investigated.

Original languageEnglish
Pages (from-to)G21-G25
JournalJournal Of The Electrochemical Society
Volume163
Issue number3
DOIs
Publication statusPublished - 2016

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