The Pauson-Khand Mechanism Revisited: Origin of CO in the Final Product

Denis Lesage (1) , Anne Milet (2) , Antony Memboeuf (3) , Jérôme Blu (2) , Andrew E. Greene (2) , Jean-Claude Tabet (1) , Yves Gimbert (2)

1 IPCM - Institut Parisien de Chimie Moléculaire
2 DCM - Département de Chimie Moléculaire
3 CEMCA - Chimie, Electrochimie Moléculaires et Chimie Analytique

The mechanism of the Pauson–Khand reaction has been studied by mass spectrometry and it has been found, through ion-molecule reaction with 13CO, 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.

Mots clés: cobalt; density functional calculations; gas-phase reactions; mass spectrometry; reaction mechanisms

Domaines: Chimie analytique; Chimie

Denis Lesage, Anne Milet, Antony Memboeuf, Jérôme Blu, Andrew E. Greene, et al.. The Pauson-Khand Mechanism Revisited: Origin of CO in the Final Product. Angewandte Chemie International Edition, 2014, 53 (7), pp.1939 - 1942. ⟨10.1002/anie.201307745⟩. ⟨hal-01529572⟩