Spectral and theoretical study of 2-methyl-3-{[(Z)-3-methyl-5-oxo-1-phenylpyrazol-4-ylidene)methyl]amino}quinazolin-4-one and its complexes with metal ions M(II)

Abstract

2-Methyl-3-{[(Z)-3-methyl-5-oxo-1-phenylpyrazol-4-ylidene)methyl]amino}quinazolin-4-one was synthesized by condensation of 5-hydroxy-4-formyl-3-methyl-1-phenylpyrazole with N-amino-2-methylquinazolin-4-one and its structure and properties were studied by IR, 1H, 13C NMR, 2D 1H NMR (COSY) and electronic spectroscopy and mass-spectrometry. By the reaction of compound (III) with Cd(II), Zn(II), and Pb(II) acetates the intracomplex compounds of 1: 2 composition (metal: ligand) were obtained.