TEMPO-promoted Pauson-Khand reaction. Single-electron activation of cobalt-carbonyl bonds?
[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.
Institute of Chemical Research of Catalonia (ICIQ), Tarragona, Spain.
Anna
A
Lagunas
Antoni
A
Mairata I Payeras
Ciril
C
Jimeno
Miquel A
MA
Pericàs