Davies, David L.; Singh, Kuldip; Tamosiunaite, Neringa published the artcile< Steric effects on acetate-assisted cyclometallation of meta-substituted N-phenyl and N-benzyl imidazolium salts at [MCl2Cp*]2 (M = Ir, Rh)>, Recommanded Product: 3-Bromobenzotrifluoride, the main research area is aryl benzyl meta substituted imidazolium cyclometalation preparation half sandwich; iridium rhodium half sandwich cyclometalated aryl benzyl imidazolylidene preparation; crystal mol structure iridium rhodium cyclometalated aryl benzyl imidazolylidene.
Meta-Substituted aryl and benzyl imidazolium salts [3-MeIm-1-(3-RC6H4)][OTf] (H2L-Ar) and [3-MeIm-1-(CH2-3-RC6H4)][OTf] (H2L-CH2Ar) undergo acetate-assisted cyclometalation to provide mixtures of ortho and para substituted cyclometalated complexes [(L-C2,C2′)ClMCp*] and [(L-C2,C6′)ClMCp*], resp. (L = LAr, L-CH2Ar). The effect of the substituents on the isomer ratios is discussed; steric effects are more important in the 6-membered rings derived from the N-benzyl imidazolium salts than 5-membered rings from the N-Ph salts. Comparisons are made to steric effects with some other common directing groups.
Dalton Transactions published new progress about Carbene complexes, N-heterocyclic, transition metal complexes Role: PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation) (cyclometalated). 401-78-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrF3, Recommanded Product: 3-Bromobenzotrifluoride.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary