化工进展 ›› 2019, Vol. 38 ›› Issue (12): 5519-5524.DOI: 10.16085/j.issn.1000-6613.2019-0523

• 生物与医药化工 • 上一篇    下一篇

基于点击反应的单宁衍生物的合成及其性能

袁花(),钟鑫,廖若雪,阳思,邹金岑,彭志远()   

  1. 吉首大学化学化工学院,湖南 吉首 416000
  • 收稿日期:2019-04-04 出版日期:2019-12-05 发布日期:2019-12-05
  • 通讯作者: 彭志远
  • 作者简介:袁花(1995—),女,硕士研究生,研究方向为环境催化与吸附材料。E-mail:787147050@qq.com
  • 基金资助:
    国家自然科学基金(31760196);吉首大学研究生创新项目(JGY201849);吉首大学锰锌钒产业技术合作创新中心项目;吉首大学校级科研项目(Jdy19016)

Synthesis and properties of tannin derivatives based on click reaction

Hua YUAN(),Xin ZHONG,Ruoxue LIAO,Si YANG,Jincen ZOU,Zhiyuan PENG()   

  1. School of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, Hunan, China
  • Received:2019-04-04 Online:2019-12-05 Published:2019-12-05
  • Contact: Zhiyuan PENG

摘要:

植物单宁与溴丙炔反应制备的炔化单宁与对十二烷基苯磺酰叠氮通过点击反应合成单宁衍生物。采用红外光谱仪和元素分析仪对单宁衍生物的结构进行表征,并研究其表面张力、抗氧化能力以及对细菌的抑制作用等性能。结果表明,在单宁分子的结构中引入长链烷基后,改善其亲脂性,制备出的单宁衍生物能显著降低水溶液的表面张力,当单宁衍生物质量浓度为0.8mg/mL时,可降低水溶液的表面张力至28.94mN/m;单宁衍生物对1,1-二苯基-2-苦基苯肼基自由基具有较强的清除能力,当单宁衍生物质量浓度为0.25mg/mL时,对1,1-二苯基-2-苦基苯肼基自由基的最大清除率可达97.08%;由于单宁脂溶性的增加及具有抗菌性能的三氮唑基团的引入,单宁衍生物对大肠杆菌和金黄色葡萄球菌的抑制作用明显增强。

关键词: 单宁, 点击反应, 单宁衍生物, 对十二烷基苯磺酰叠氮

Abstract:

Tannin derivatives were prepared by the click reaction of p-dodecylbenzene sulfonyl azide and alkynylated tannin synthesized by the substitute reaction of tannins with bromopropyne. The tannin derivatives structure was characterized by FTIR and elemental analyzer, and the surface tension, antioxidant ability and inhibitory functions on bacteria of tannin derivatives were studied. The experimental results showed that the tannin derivatives can significantly reduce the surface tension of water due to the introduction of the long-chain alkyl groups and the improvement of tannin lipophilicity. The lowest surface tension of the tannin derivatives can be up to 28.94mN/m at 0.8mg/mL, the tannin derivatives had strong scavenging ability to the 1,1-diphenyl-2-picrylphenylhydrazinyl radical which the maximum scavenging rate of 97.08% at 0.25mg/mL, the tannin derivatives exhibited stronger antibacterial activity against Escherichiacoli and Staphylococcusaureus because of the improvement of tannin liposolubility and the introduction of antibacterial triazol groups.

Key words: tannins, click reaction, tannin derivatives, p-dodecylbenzene sulfonyl azide

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