Electrogenerated Nickel(I) complexes as catalysts for the intramolecular radical cyclisation of unsaturated α-bromoesters

[Display omitted] The indirect electroreduction of unsaturated α-bromoesters using Ni(II) complexes as electron-transfer mediators is achieved in N, N′-dimethylformamide by constant current electrolysis between a cathode and a sacrificial anode in a diaphragmless cell. Cyclic compounds are obtained...

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Bibliographic Details
Published in:Tetrahedron letters 2004-10, Vol.45 (42), p.7935-7937
Main Authors: Duñach, E., Esteves, A.P., Medeiros, M.J., Olivero, S.
Format: Article
Language:English
Subjects:
Cobalt
Cyclisation
Electrochemical
Nickel
Radical cyclisation
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Summary:[Display omitted] The indirect electroreduction of unsaturated α-bromoesters using Ni(II) complexes as electron-transfer mediators is achieved in N, N′-dimethylformamide by constant current electrolysis between a cathode and a sacrificial anode in a diaphragmless cell. Cyclic compounds are obtained in moderate to good yields in conditions that avoid the usual preparation using organotin reagents.
ISSN:0040-4039
1873-3581
DOI:10.1016/j.tetlet.2004.08.131