Published in
American Chemical Society, Organic Letters, 14(7), p. 3033-3036, 2005
DOI: 10.1021/ol051146b
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TEMPO-Promoted Pauson−Khand Reaction. Single-Electron Activation of Cobalt−Carbonyl Bonds?
Journal article published in 2005 by
Anna Lagunas,
Antoni Mairata I. Payeras,
Ciril Jimeno,
Miquel A. Pericàs 
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Abstract
[reaction: see text] The Pauson-Khand reaction is notably accelerated by TEMPO. According to DFT calculations, TEMPO could trigger a radical, low-energy pathway for the reaction by facilitating the decarbonylation of doublet complexes arising either from a CO/nitroxide exchange or from nitroxide addition to a CO ligand.