The Pauson-Khand mechanism revisited: origin of CO in the final product.
The mechanism of the Pauson-Khand reaction has been studied by mass spectrometry and it has been found, through ion-molecule reaction with (13) CO, that the carbon monoxide incorporated into the product cyclopentenone is one that has been retained within the complex. Theoretical and kinetic calculations support this finding, which provides a complementary explanation for the effect of Pauson-Khand promoters.
UPMC Univ Paris 06 (IPCM), UMR CNRS-7201, 4 place Jussieu, 75005 Paris (France).
Denis
D
Lesage
Anne
A
Milet
Antony
A
Memboeuf
Jérôme
J
Blu
Andrew E
AE
Greene
Jean-Claude
JC
Tabet
Yves
Y
Gimbert
cobalt; density functional calculations; gas-phase reactions; mass spectrometry; reaction mechanisms