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.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
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)

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

DOI
10.1002/chem.202404133
URN
urn:nbn:de:101:1-2501091329126.234379617677
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:36 MESZ

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Beteiligte

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

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