Copper (II) complexes of piperazine-derived tetradentate ligands and their chiral diazabicyclic analogues for catalytic phenol oxidative C–C coupling

I Castillo, V Pérez, I Monsalvo, P Demare…

Index: Castillo, Ivan; Perez, Viridiana; Monsalvo, Ivan; Demare; Regla, Ignacio Inorganic Chemistry Communications, 2013 , vol. 38, p. 1 - 4

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Citation Number: 2

Abstract

Abstract Reaction of the chiral ligands (1S, 4S)-2, 5-bis (6-methylpyridyl)-diazabicyclo [2.2. 1] heptane (L 1) and (1S, 4S)-2, 5-bis (1-methyl-2-methylbenzimidazolyl)-diazabicyclo [2.2. 1] heptane (L 2) with CuCl 2 results in the hydroxo-bridged dicopper complexes [(L 1) Cu 2 (μ-OH)(H 2 O) Cl 3](3), and [(L 2) Cu 2 (μ-OH)(H 2 O) Cl 3](4). Both chiral complexes were characterized spectroscopically, and 3 in the solid state by X-ray crystallography, ...