SDS of cas: 70-23-5. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Ethyl 3-bromo-2-oxopropanoate, is researched, Molecular C5H7BrO3, CAS is 70-23-5, about A new fluorescent probe based on imidazole[2,1-b]benzothiazole for sensitive and selective detection of Cu2+. Author is Wang, Hanyu; Zhao, Songfang; Xu, Yuankang; Li, Linlin; Li, Bing; Pei, Meishan; Zhang, Guangyou.
A simple fluorescent chemosensor WS1 (N’-[(Z)-1H-indazol-3-ylmethylidene]imidazo [2,1-b] [1,3]benzothiazole-2-carbohydrazide) based on imidazole [2,1-b]benzothiazole was designed and synthesized. The probe showed specific recognition towards Cu2+ through colorimetric and “”turn-off”” fluorescence response in MeOH/H2O (9:1 V/V) buffer solution (10 mM Tris, pH = 7.4) with detection limit of 4.32 × 10-8 M. In addition, WS1 was a reversible fluorescence probe for the detection of Cu2+, the fluorescence intensity recovered to the similar state of free WS1 as PPi was added. And it showed a favorable potency for actual water monitoring. The proposed binding mode of WS1 with Cu2+ was verified by DFT calculation using Gaussian 09.
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Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem