Abstract
A simple route for the synthesis of a new octahedral nickel(II) complex (1) containing 4-chloro-benzoic acid pyridin-2-ylmethylene-hydrazide ligand (HL, where H represents the dissociable proton) has been described. The characterization of the complex having the formula [Ni(μ3-O,N,N-L)2] has been established by elemental analysis, ESI-MS, spectral methods and single crystal X-ray crystallography. Further, the new complex was found to act as an active homogeneous catalyst for the Suzuki–Miyaura reaction of substituted aryl bromides (mono and dibromides) with various arylboronic acids having different electronic effects under optimized conditions of solvent, base and catalyst loading. The biphenyl and triphenyl derivatives were obtained in moderate to excellent isolated yields.
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