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化学学报
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化学学报 ›› 2009, Vol. 67 ›› Issue (7): 645-650. 上一篇    下一篇

研究论文

新型受体呋喃并[3’,4’:5,6]吡啶并[2,3-c]吡唑的合成及对阴离子的识别研究

史达清*,a 李 燕b 石春玲c 王海营a

  

  1. (a苏州大学材料与化学化工学部 江苏省有机合成重点实验室 苏州 215123)
    (b徐州师范大学化学化工学院 徐州 221116)
    (c东南大学化学化工学院 制药工程研究所 南京 210096)

  • 投稿日期:2008-10-06 修回日期:2008-11-12 发布日期:2009-04-14
  • 通讯作者: 史达清

Synthesis of New Anion Receptors Based on Furo[3’,4’:5,6] pyrido[2,3-c]pyrazole and Their Anion Recognition

Shi, Daqing *,a Li, Yan b Shi, Chunling c Wang, Haiying a   

  1. (a Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials
    Science, Suzhou University, Suzhou 215123)
    (b College of Chemistry and Chemical Engineering, Xuzhou Normal University, Xuzhou 221116)
    (c College of Chemistry and Chemistry Engineering, Institute of Pharmaceutical Engineering,
    Southeast University, Nanjing 210096)
  • Received:2008-10-06 Revised:2008-11-12 Published:2009-04-14
  • Contact: Shi, Daqing

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设计并合成了5种呋喃并[3’,4’:5,6]吡啶并[2,3-c]吡唑受体分子, 利用紫外-可见吸收光谱考察了其与F－, Cl－, Br－, AcO－, 等阴离子的作用. 结果表明该类受体分子与阴离子形成氢键配合物, 导致呋喃并吡啶并吡唑受体的光谱发生变化. 测定了配合物的结合比和稳定常数, 发现受体化合物对F－, AcO－离子具有良好的选择性, 对其它多种阴离子无影响. Job曲线表明受体分子与阴离子间形成1∶1型的配合物.

关键词: 呋喃并[3’,4’:5,6]吡啶并[2,3-c]吡唑, 阴离子识别, 氢键作用

Five new receptors containing furo[3’,4’:5,6]pyrido[2,3-c]pyrazole core were synthesized. The properties of the receptors with anions such as F－, Cl－, Br－, AcO－, and were examined by UV-Vis spectroscopy. The results showed that the receptors have good selectivity to F－ and AcO－. However, no obvious changes were observed on the other anions. The Job plot indicated that a 1∶1 stoichiometry complex was formed between the receptors and anions. The results also showed hydrogen-bonding interaction was formed between the receptors and anions.

Key words: furo[3’,4’:5,6]pyrido[2,3-c]pyrazole, anion recognition, hydrogen-bonding interaction