Outer-Sphere Reactivity Shift of Secondary Phosphine Oxide-Based Nickel Complexes: From Ethylene Hydrophosphinylation to Oligomerization

Rudy Lhermet 1 Emile Moser 1 Erwann Jeanneau 2 Hélène Olivier-Bourbigou 1 Pierre-Alain R. Breuil 1, *
* Corresponding author
1 IFPEN - IFP Energies nouvelles
2 UCBL - Université Claude Bernard Lyon 1
Abstract : A new dimension for secondary phosphine oxide (SPOs) ligands is described in this article. Demonstrated on original p-allylic nickel structures, these self-assembled complexes trigger catalytic hydrophosphinylation reactions. Addition of a Lewis acid B(C6F5)3 switches the reactivity towards migratory insertion and thus ethylene oligomerization through an unprecedented outer-sphere interaction with the coordinated SPO ligand. NMR experiments and X-ray analyses allowed for the observation of the formation of zwitterionic active species as well as their degradation pathway.
Keywords : Homogeneous catalysis • Lewis acid interaction Nickel Outer-pherecoordination Secondary phosphine oxide ligand Cayalysts Stable palladium catalysis Hydrogeznation Dimerization Platinium Olefins
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Journal articles
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https://hal-ifp.archives-ouvertes.fr/hal-01581820
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Submitted on : Tuesday, September 5, 2017 - 10:58:13 AM
Last modification on : Tuesday, November 19, 2019 - 2:37:45 AM

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Rudy Lhermet, Emile Moser, Erwann Jeanneau, Hélène Olivier-Bourbigou, Pierre-Alain R. Breuil. Outer-Sphere Reactivity Shift of Secondary Phosphine Oxide-Based Nickel Complexes: From Ethylene Hydrophosphinylation to Oligomerization. Chemistry - A European Journal, Wiley-VCH Verlag, 2017, 23 (31), pp.7433 - 7437. ⟨10.1002/chem.201701414⟩. ⟨hal-01581820⟩

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