Addition and Oxidation Reactivity of a Pentacoordinate Nickelacyclobutane

Abstract: Nickelacyclobutanes are reactive intermediates in catalytic cycles including cyclopropanation and insertion reactions. The stoichiometric study of these intermediates has shown that their reactivity is highly influenced by the coordination environment of the nickel center. A pentacoordinated nickelacyclobutane embedded in a diphosphine pincer ligand has been shown to selectively undergo various reactions with exogenous ligands, including [2+2] cycloreversion and carbene transfer to an isocyanide. Herein, we investigate the reactivity of the pentacoordinated nickelacyclobutane towards addition and oxidation reactions. Addition reactions lead to ring‐opening to form stable square planar Ni (II) compounds, while metal oxidation enhances [2+2] cycloreversion. DFT calculations are used to shed light on the different mechanisms.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Addition and Oxidation Reactivity of a Pentacoordinate Nickelacyclobutane ; day:08 ; month:01 ; year:2025 ; extent:9
Chemistry - a European journal ; (08.01.2025) (gesamt 9)

Creator
Sansores‐Paredes, María L. G.
Lutz, Martin
Moret, Marc‐Etienne

DOI
10.1002/chem.202404133
URN
urn:nbn:de:101:1-2501091329126.234379617677
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:36 AM CEST

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Associated

  • Sansores‐Paredes, María L. G.
  • Lutz, Martin
  • Moret, Marc‐Etienne

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