Facile N–N coupling and copper (II) promoted cleavage of N,N′-linked N-methylbenzimidazole
摘要:
Together with the facile and high yielding formation of N,N'-linked NHC ligand, the complexation of Nmethylbenzimiclazole (1a), N-methylbenzimcliazolium chloride (4a) and N,N,-Iinked NHC ligand, 3,3-dimethyl-1,1-bibenzimidazolium dichloride (2a), with CuO or CuCl2 give a dichloro-bridged binuclear copper(II) species (la), as characterized by IR spectroscopy and X-ray. (C) 2008 Elsevier B.V. All rights reserved.