4 research outputs found
Crystal structure of di-[mu]-ethoxy-di-1,3-bis[benzimidazol-2-yl]propane-dicopper(II)perchlorate ethanol-solvate, (Cu(CââHââNâ)(CHâCHâO))â(ClOâ)â(CâHâ OH)â
No full textCrystal structure of 1,3-bis(1-methylbenzimidazol-2-yl)-propane(acetonitrile)copper(I)hexafluorophosphate, Cu(CââHââNâ)(CHâCN)(PFâ)
No full textA Minimalist Approach to C-H Activation by Copper
No full textThe complex [Cuâ(1)â]ÂČâș (1â=â1,3âbis(1âmethylâ1Hâbenzimidazolâ2âyl)benzene) undergoes slow oxidation by dioxygen in DMF solution to give the hydroxylated product [Cuâ(2âH)â]ÂČâș (2â=â2,6âbis(1âmethylâ1Hâbenzimidazolâ2âyl)phenol) characterized by an Xâray crystalâstructure analysis. The oxidation occurs much faster when CuII is mixed with 1 in the presence of HâOâ, with 80% hydroxylation observed within a few minutes. The mononuclear complex formed with 1âmethylâ2âphenylâ1Hâbenzimidazole (3) shows no hydroxylation under these conditions. It is concluded that the hydroxylation requires the presence of a ligand capable of stabilizing a binuclear species, but no special coordinative activation of the copper is required
