On the Development of Selective Chelators for Cadmium: Synthesis, Structure and Chelating Properties of 3-((5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl)amino)benzo[d]isothiazole 1,1-dioxide, a Novel Thiadiazolyl Saccharinate.
作者： Luísa Barreira , José A Paixão , Maria L S Cristiano , Bruno Guerreiro , Patrícia S M Amado
DOI: 10.3390/MOLECULES26061501
关键词: Cadmium 、 Chelation 、 Medicinal chemistry 、 Isothiazole 、 Denticity 、 Selectivity 、 Thiadiazoles 、 Trifluoromethyl 、 Chemistry 、 Titration
摘要: Aquatic contamination by heavy metals is a major concern for the serious negative consequences it has plants, animals, and humans. Among most toxic metals, Cd(II) stands out since selective truly efficient methodologies its removal are not known. We report novel multidentate chelating agent comprising heterocycles thiadiazole benzisothiazole. 3-((5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl)amino)benzo[d]isothiazole 1,1-dioxide (AL14) was synthesized from cheap saccharin characterized different techniques, including single crystal X-ray crystallography. Our studies revealed efficiency selectivity of AL14 chelation dissolved (as compared to Cu(II) Fe(II)). Different spectral changes were observed upon addition during UV-Vis titrations, suggesting complexation interactions with both metals.
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