TEMPO-Promoted Pauson−Khand Reaction. Single-Electron Activation of Cobalt−Carbonyl Bonds?

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....

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Veröffentlicht in:Organic letters 2005-07, Vol.7 (14), p.3033-3036
Hauptverfasser: Lagunas, Anna, Mairata i Payeras, Antoni, Jimeno, Ciril, Pericàs, Miquel A
Format: Artikel
Sprache:eng
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Zusammenfassung: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.
ISSN:1523-7060
1523-7052
DOI:10.1021/ol051146b