Chesnokov, V. V.; Shevchenko, M. A.; Soliev, S. B.; Tafeenko, V. A.; Chernyshev, V. M. published their research in Russian Chemical Bulletin in 2021. The article was titled 《Complexes LNi(Cp)X with alkylamino-substituted N-heterocyclic carbene ligands (L) and their catalytic activity in the Suzuki-Miyaura reaction》.SDS of cas: 141556-45-8 The article contains the following contents:
New nickel(II) complexes of the general formula LNi(Cp)X (L is an N-heterocyclic carbene (NHC) ligand of the 1,2,4-triazole or imidazole series; Cp is the cyclopentadienyl anion; X = Cl, I) are reported. In these complexes, the NHC ligands (L) contain an alkylamino group at the 3 or 4 position of the heterocycle. The synthesized complexes and structurally similar complexes without an alkylamino group were tested for catalytic activity in the Suzuki-Miyaura reaction. The introduction of an alkylamino group into the NHC ligand leads to the enhancement of the catalytic activity of complexes with N,N’-diaryl-substituted NHC ligands of the imidazole series and a decrease in the activity of the complexes with N,N’-dialkyl-substituted NHC ligands of the 1,2,4-triazole series. In the experimental materials used by the author, we found 1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8SDS of cas: 141556-45-8)
1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8) is a ligand for arylation of aldehydes and for carbene catalyzed intermolecular arylation of C-H bonds. It is used as a phosphine-free ligand in various metal-catalyzed coupling reactions, often with advantageous results in difficult cases.SDS of cas: 141556-45-8
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem