Case Study of N-ⁱ Pr versus N-Mes Substituted NHC Ligands in Nickel Chemistry: The Coordination and Cyclotrimerization of Alkynes at [Ni(NHC)₂ ].

ABSTRACT: A case study on the effect of the employment of two different NHC ligands in complexes [Ni(NHC)₂ ] (NHC=ⁱ Pr₂ Im^Me 1^Me , Mes₂ Im 2) and their behavior towards alkynes is reported. The reaction of a mixture of [Ni₂ (ⁱ Pr₂ Im^Me )₄ (μ-(η²  : η² )-COD)] B/ [Ni(ⁱ Pr₂ Im^Me )₂ (η⁴ -COD)] B' or [Ni(Mes₂ Im)₂ ] 2, respectively, with alkynes afforded complexes [Ni(NHC)₂ (η² -alkyne)] (NHC=ⁱ Pr₂ Im^Me : alkyne=MeC≡CMe 3, H₇ C₃ C≡CC₃ H₇ 4, PhC≡CPh 5, MeOOCC≡CCOOMe 6, Me₃ SiC≡CSi

SUBMITTER: Tendera L 

PROVIDER: S-EPMC9299202 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature