New arylhydrazone derivatives of β-diketones, 2-(4-bromophenylhydrazono)-5, 5- dimethylcyclohexane-1, 3-dione (1), 5-(4-bromophenylhydrazono) pyrimidine-2, 4, 6 (1H, 3H, 5H)-trione (2) and (E)-2-(4-bromophenylhydrazono)-1-phenylbutane-1, 3-dione (3), were prepared by coupling of β-diketone with the respective para-bromophenyldiazonium chloride, and characterized by IR, 1H and 13C NMR spectra. The IR and NMR spectral ...