有机化学 ›› 2024, Vol. 44 ›› Issue (2): 525-532.DOI: 10.6023/cjoc202306022 上一篇    下一篇

研究论文

利用串联的Staudinger/aza-Wittig/芳构化反应合成1,2,4-三取代咪唑衍生物

解海*(), 张雅丽, 秦秀婷, 谷永新*()   

  1. 山西大同大学化学与化工学院 化学传感山西省重点实验室 山西大同 037009
  • 收稿日期:2023-06-26 修回日期:2023-09-25 发布日期:2023-11-07
  • 基金资助:
    大同市应用基础研究项目基金(02030710)

Synthesis of 1,2,4-Trisubstituted Imidazoles via Sequential Staudinger/aza-Wittig/Aromatization Reaction

Hai Xie(), Yali Zhang, Xiuting Qin, Yongxin Gu()   

  1. College of Chemistry and Chemical Engineering, Shanxi Provincial Key Laboratory of Chemical Biosensing, Shanxi Datong University, Datong, Shanxi 037009
  • Received:2023-06-26 Revised:2023-09-25 Published:2023-11-07
  • Contact: xiehai10@126.com; guyongxin515@126.com
  • Supported by:
    Datong Applied Basic Research Project Fund(02030710)

报道了一种合成1,2,4-三取代咪唑衍生物的方法, 即通过含有烯基叠氮基的苯甲酰胺衍生物为关键中间体, 用三苯基膦处理, 发生串联的Staudinger/aza-Wittig/芳构化反应, 合成得到1,2,4-三取代咪唑衍生物. 该反应具有原料廉价易得, 反应条件温和, 无需使用金属催化剂, 操作简便的特点, 这是一种理想、高效的1,2,4-三取代咪唑杂环化合物的合成策略.

关键词: Staudinger反应, aza-Wittig反应, 芳构化反应, 1,2,4-三取代咪唑

An efficient and convenient route for the synthesis of 1,2,4-trisubstituted imidazole derivatives was described. Benzamide derivatives containing alkenylazide as the basic raw materials were treated with triphenyl phosphorus, and subsequently 1,2,4-trisubstituted imidazole derivatives were synthesized by a sequential Staudinger/aza-Wittig/aromatization reaction. The reaction is characterized by cheap and easy to obtain starting materials, mild reaction conditions, metal-free catalysts, and simple operation. It is an ideal and efficient synthesis strategy of 1,2,4-trisubstituted imidazole heterocyclic compounds.

Key words: Staudinger reaction, aza-Wittig reaction, aromatization reaction, 1,2,4-trisubstituted imidazole