Abstract Half sandwich ruthenium (II) complexes were synthesized from [RuCl 2 (η 6-p- cymene)] 2 and N-substituted benzimidazole. All new compounds were characterized by elemental analysis, 1 H NMR, 13 C NMR, and IR spectroscopy. Aminoarenes were readily converted into secondary amines by the reaction at 150 C with benzyl alcohol and in the presence of a catalytic amount of novel ruthenium complexes. All of [RuCl 2 (η 6-p- ...