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

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.
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Chemistry - A European Journal, Wiley-VCH Verlag, 2017, 23 (31), pp.7433 - 7437. 〈10.1002/chem.201701414〉
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https://hal-ifp.archives-ouvertes.fr/hal-01581820
Contributeur : Françoise Bertrand <>
Soumis le : mardi 5 septembre 2017 - 10:58:13
Dernière modification le : mardi 15 mai 2018 - 14:50:03

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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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