Phosphorus, Sulfur and Silicon and the Related Elements p. 219 - 251 (2000)
Update date:2022-08-24
Topics:
Awad, Ibrahim M.A.
A Series of novel azo-sulfa drugs of piperidino-, morpholino-, mono-, and bis-piperazino-N-dithiocarbamyl-azo dyes (Ia-h - IV a-h) are synthesiezed via a reaction of 4-[(4′-heterocyclo-substituted) suflamoyl and/or sulfonyl] benzenediazonium salts with N-piperidino-, N-morpholino-, mono-, and bis- N-piperazino- dithiocarbamate sodium salts in acid medium to afford the corresponding azo dye legands. Interaction of these ligands with metal salts: iron(III), copper(II) and mercuric(II) chlorides in ethanolic solution afforded the corresponding metal chelates (I′a-h - ′IVa-h), (I″a-h - ″IVa-h) and (I?a-h - ≈IVa-h). Ligands and their metal chelates are characterized by microanalysis, IR, UV-Vis H-NMR spectroscopy and are screened in vitro for their antimicrobial activities. Chelation of ligands induces a remarkable increase in their antimicrobial activity.
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