MaGee, Karen D. M. published the artcileSynthesis, Solid-state Structures, Solution Behaviour and Catalysis Studies of Nickel Complexes of Bis(benzimidazolin-2-ylidene)pyridine Pincer Ligands, SDS of cas: 72721-02-9, the main research area is crystal structure benzimidazolinylidenepyridine pincer nickel preparation catalyst Kumada coupling; mol structure benzimidazolinylidenepyridine pincer nickel preparation catalyst Kumada coupling; aryl halide Kumada Grignard catalyst benzimidazolinylidenepyridine NHC pincer nickel.
N-Heterocyclic carbene-Ni complexes with five- and four-coordinate geometries [(CNC)NiBr2] and [(CNC)NiBr]X (X = PF6 or BPh4) were prepared with the pincer ligands 2,6-bis(N-octylbenzimidazolin-2-ylidene)pyridine and 2,6-bis(N-butyl-5,6-dimethoxybenzimidazolin-2-ylidene)pyridine. The addition of the n-octyl substituent significantly extends the solubility of the complexes and has allowed UV-visible solution studies of the complexes in CH2Cl2 and MeOH. The four- and five-coordinate species exist in equilibrium in solution and this equilibrium was explored by UV-visible studies. The complexes also were characterized by NMR studies, and single crystal x-ray diffraction studies were performed on [(CNC)NiBr2] (CNC = 2,6-bis(N-octylbenzimidazolin-2-ylidene)pyridine) and [(CNC)NiBr]BPh4 (CNC = 2,6-bis(N-butyl-5,6-dimethoxybenzimidazolin-2-ylidene)pyridine). The Ni complexes displayed only moderate activity in Tamao-Kumada-Corriu coupling reactions.
Australian Journal of Chemistry published new progress about Aryl halides Role: RCT (Reactant), RACT (Reactant or Reagent). 72721-02-9 belongs to class imidazoles-derivatives, name is 5,6-Dimethoxy-1H-benzo[d]imidazole, and the molecular formula is C9H10N2O2, SDS of cas: 72721-02-9.
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem