华南理工大学学报(自然科学版) ›› 2013, Vol. 41 ›› Issue (3): 142-146.doi: 10.3969/j.issn.1000-565X.2013.03.021

• 化学化工 • 上一篇    

磺酰脲受体的合成及阴离子识别性能

瞿金清1 万文1 勇雪1 苏铭健1 严轶琛2 刘瑞源2   

  1. 1.华南理工大学 化学与化工学院,广东 广州 510640; 2.南方医科大学 药学院,广东 广州 510515
  • 收稿日期:2012-08-23 修回日期:2012-11-28 出版日期:2013-03-25 发布日期:2013-02-01
  • 通信作者: 瞿金清(1970-),男,教授,博士生导师,主要从事精细化学品的合成与应用研究. E-mail:cejqqu@scut.edu.cn
  • 作者简介:瞿金清(1970-),男,教授,博士生导师,主要从事精细化学品的合成与应用研究.
  • 基金资助:

    国家自然科学基金资助项目( 21074073, 51173050, 21244007)

Synthesis and Anion Recognition Properties of Sulfonylurea Receptor

Qu Jin-qing1 Wan Wen1 Yong Xue1 Su Ming-jian1 Yan Yi-chen2 Liu Rui-yuan2   

  1. 1.School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China;2.School of Pharmaceutical Sciences,Southern Medical University,Guangzhou 510515,Guangdong,China
  • Received:2012-08-23 Revised:2012-11-28 Online:2013-03-25 Published:2013-02-01
  • Contact: 瞿金清(1970-),男,教授,博士生导师,主要从事精细化学品的合成与应用研究. E-mail:cejqqu@scut.edu.cn
  • About author:瞿金清(1970-),男,教授,博士生导师,主要从事精细化学品的合成与应用研究.
  • Supported by:

    国家自然科学基金资助项目( 21074073, 51173050, 21244007)

摘要: 合成了一种新型的磺酰脲阴离子受体双-( 4'-硝基苯基) 磺酰脲,通过观察引入阴离子后受体溶液颜色的变化,实现了阴离子的裸眼检测,其中引入F- 变为棕黄色,引入CH3CO2- 变为淡黄色,引入其他阴离子( 如NO3- 、Br- 、Cl- 、HSO4- ) 受体溶液颜色则无明显的变化.通过紫外- 可见分光光度滴定法确定了受体与一价阴离子的结合能力,计算结果表明,磺酰脲基对F- 和CH3CO2- 有较高的亲和力; Jobs 工作曲线表明受体与F- 形成摩尔比为1∶2 的配合物. 最后通过测定甲醇对受体分子和F- 配合物的紫外吸收光谱的影响,证明了受体分子与阴离子之间以氢键方式相结合.

关键词: 磺酰脲, 受体, 阴离子识别, 裸眼检测

Abstract:

A novel sulfonylurea anion receptor,namely bis-( 4'-nitro phenyl) sulfonylurea,was synthesized andapplied to the naked-eye detection of anions by observing the color change of receptor solution after the addition ofanions,and obvious color change of the solution,namely F- -induced brown yellow or CH3CO2- -induced lightyellow,was observed.However,the color slightly changed when such other anions as NO3- ,Br- ,Cl- and HSO4- were introduced in the solution.Afterwards,the binding ability of the receptor with mono-anions was tested bymeans of UV-vis spectrophotometry titration method,with rather strong affinity of sulfonylurea to F- and CH3CO2-being revealed. Jobs plot indicates that the receptor and F- groups form a kind of complex with 1:2 stoichiometry.Moreover,the UV absorption spectra of methanol for the complex confirm that the receptor binds with anions withthe help of hydrogen bond.

Key words: sulfonylurea, receptor, anion recognition, naked-eye detection

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