<b>Synthesis, spectral characterizations and antimicrobial activity of some Schiff bases of 4-chloro-2-aminophenol</b>

oleh: A. Seher Birteksöz, Aydin Tavman, Demet Gürbüz, Adem Cinarli

Format: Article
Diterbitkan: Chemical Society of Ethiopia 2011-12-01

Deskripsi

A series of 4-chloro-2-[(arylmethylidene)amino]phenols (<b>1</b>–<b>11</b>) including methoxy group were synthesized using appropriate synthetic route. The structures of the Schiff bases were characterized by FT-IR, UV-Vis, ESI-MS, <sup>1</sup>H and <sup>13</sup>C-NMR spectroscopic techniques and analytical methods. A relation is observed between melting points and existence of intramolecular hydrogen bonding. IR spectra of the compounds including and not including hydrogen bonding were compared. The compounds <b>2</b> and <b>4</b> show the characteristic UV bands attributed to the NH-forms. According to the <sup>1</sup>H-NMR spectral data the compound <b>2</b> has the strongest intramolecular hydrogen bonding and the compound <b>6</b> shows two isomeric structure. On the other hand, antibacterial and antifungal activities of the compounds were investigated. Most of the compounds show selective activity toward <i>S. epidermidis</i> and <i>C. albicans</i>.