Synthesis of a Phenazine-Based 1,2,3-Triazole from Naturally Occurring Naphthoquinone Designed as a Probe for Cd2+ Ions

被引：26

作者：

Jardim, Guilherme A. M. ^{[1
]}

Calado, Hallen D. R. ^{[1
]}

Cury, Luiz A. ^{[2
]}

da Silva Junior, Eufranio N. ^{[1
]}

机构：

[1] Univ Fed Minas Gerais, Dept Chem, Inst Exact Sci, UFMG, BR-31270901 Belo Horizonte, MG, Brazil

[2] Univ Fed Minas Gerais, Dept Phys, Inst Exact Sci, UFMG, BR-31270901 Belo Horizonte, MG, Brazil

来源：

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY | 2015年 / 2015卷 / 04期

关键词：

Sensors; Cadmium; Fluorescent probes; Click chemistry; Quinones; COPPER(II); CADMIUM; METAL; COMPLEXES;

D O I：

10.1002/ejoc.201403011

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The synthesis of a phenazine-based 1,2,3-triazole luminescent probe was successfully accomplished from the available natural product lapachol, which was easily extracted from the heartwood of Tabebuia sp. (Tecoma). Photophysics and fluorescence studies were conducted by using the probe in the presence of metal ions (Cd2+, Ca2+, Co2+, Cu2+, Fe3+, Hg2+, Mg2+, Na+, Ni2+, Ag+, Pb2+, Zr2+, and Zn2+ as their chloride salts with the exceptions of silver and lead that were used as acetates). The probe was able to detect Cd2+ ions in H2O/CH3CN (8.5:1.5 v/v) medium. Studies performed with the sensor in a solution of cadmium chloride resulted in a green color after ultraviolet excitation, but for most metals blue color was observed, which could be detected by the naked eye. This is the first report of a lapachol, an accessible naphthoquinoidal compound, having been used to prepare a probe to detect the heavy metal cadmium.

引用

页码：703 / 709

页数：7

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