New copper(II) and palladium(II) complexes were synthesized by the interaction of metal acetates and azo-, bisazo-5-pyrazolones in a methanolic medium. The mononuclear copper(II) and palladium(II) complexes were obtained ...

New azo- and bisazo-5-pyrazolone dyes have been synthesised by azo coupling of various arylamines and aryl diamines with 5-pyrazolones: 1-methyl-3-phenyl-1H-pyrazol-5(4H)-one, 1-(4-chlorophenyl)-3-isopropyl-1H-pyrazol-5(4H)-one ...