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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/109582
Synthesis, coordination study, and catalytic Pauson−Khand reactions of QuinoxP*(CO)4‑μ-alkyne dicobalt complexes
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The coordination of the P-stereogenic and sterically demanding bisphosphine QuinoxP* to μ-alkyne dicobalt hexacarbonyl complexes was studied experimentally and computationally. Whereas the coordination occurred exclusively in a chelating fashion, the diastereoselectivity was highly substrate dependent. However, it could be explained from the computed structure and energies of the different coordination modes. The fluxional behavior of these complexes was also studied computationally. Their performance as catalysts for the Pauson−Khand reaction was explored, and outstanding reactivity was observed. Although the asymmetric induction was low to moderate, the stereochemical outcome could be mechanistically rationalized. This report provides promising results in terms of reactivity and mechanistic understanding for further developments of highly active chiral catalysts for intermolecular Pauson−Khand reactions.
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GARÇON, Martí, CABRÉ MONTESINOS, Albert, RIERA I ESCALÉ, Antoni, VERDAGUER I ESPAULELLA, Xavier. Synthesis, coordination study, and catalytic Pauson−Khand reactions of QuinoxP*(CO)4‑μ-alkyne dicobalt complexes. _Organometallics_. 2017. Vol. 36, núm. 1056-1065. [consulta: 20 de gener de 2026]. ISSN: 0276-7333. [Disponible a: https://hdl.handle.net/2445/109582]