Diphosphorus Release and Heterocumulene Oligomerisation by Nickel Complexes.

ABSTRACT: The generation of diphosphorus molecules P₂ under mild conditions in solution is a useful strategy to generate diphosphines via [4+2] cycloadditions. We recently described the release of P₂ units from the nickel butterfly complex [{(IMes)Ni(CO)}₂(μ²,η²:η²-P₂)] (IMes=1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene) upon addition of CO gas. Herein, we developed an alternative protocol for the same process using heterocumulenes. In addition to formation of P₄ (the dimerisation product of P₂), the reactions afford nickel complexes of novel pincer-type ligands. Aryl isothiocyanates undergo a trimerisation within the coordination sphere of nickel and afford square planar nickel complexes

SUBMITTER: Hierlmeier G 

PROVIDER: S-EPMC9314841 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature