Synthesis and complex formation of substituted amino-2-naphthylglyoximes of unsymmetrical vic-dioximes

anti-2-Naphthylchloroglyoxime has been synthesized by chlorination of anti-2-naphthylglyoxime. Reaction with aryl-or arylalkylamines in EtOH between 15°C and 20°C gives unsymmetrical vic-dioximes, namely, anilino-2-naphthylglyoxime (L1H2), benzylamino-2-naphthylglyoxime (L2H2), p-toluidino-2-naphthylglyoxime (L3H2) 1-naphthylamino-2-naphthylglyoxime (L4H2). The Ni(II) and Cu(II) complexes of these ligands are square-planar while the Co(II) complexes are octahedral with water molecules as axial ligands. 1H NMR, IR and elemental analyses data of the complexes and ligands are discussed