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SYNTHESIS, CHARACTERIZATION AND ANTIFUNGAL ACTIVITY OF 2-[(8-HYDROXYQUINOLINYL)-5-AMINOMETHYL]-3-(4-CHLOROPHENYL)-6-BROMO-3(H)-QUINAZOLIN-4-ONE LIGAND AND ITS TRANSITION METAL CHELATES
oleh: R. T. Vashi, S. B. Patel
| Format: | Article |
|---|---|
| Diterbitkan: | El Oued University 2015-07-01 |
Deskripsi
<p>Synthesis and characterization of 2-[(8-hydroxyquinolinyl)-5-aminomethyl]-3-(4-chlorophenyl)-6-Bromo-3(H)-quinazolin-4-one ligand called HAMQ (HL<sub>10</sub>) was studied<sub>.</sub> To prepare this ligand anthranilic acid was converted into 5-bromo–N-Chloroacetyl anthranilic acid then into 2-[(8-hydroxyquinolinyl) -5-aminomethyl] -3-(4-chrolophenyl) -6-bromo- 3(H)-quinazolin-4-one. This compound was prepared by condensation with 5-amino-8-hydroxyquinoline. New transition metal chelates of Cu<sup>2+</sup>,Ni<sup>2+</sup>, Zn<sup>2+</sup>, Mn<sup>2+</sup> and Co<sup>2+</sup> of this ligand HAMQ were prepared and characterized by reflectance, <sup>1</sup>H-NMR as well as IR spectroscopy, elemental analysis molar conductance and magnetic measurements. The stoichiometry of the complexes has been found to be 1: 2 (Metal: ligand). The data suggested an octahedral geometry around Co<sup>2+</sup>, Ni<sup>2+</sup> and Mn<sup>2+ </sup>complexes, a distorted octahedral geometry around Cu<sup>2+</sup> and a tetrahedral geometry around Zn<sup>2+</sup> have been proposed. The metal complexes were screened for the antifungal activity.</p>