高等学校化学学报 ›› 2023, Vol. 44 ›› Issue (6): 20220671.doi: 10.7503/cjcu20220671

• 有机化学 • 上一篇    下一篇

连续流动下多组分串联合成结构对称N-芳基-4-吡啶酮

杨棋1, 李伟强1, 黄顺桃1, 李靖鹏1, 刘腾2(), 黄超1()   

  1. 1.云南民族大学生物基材料绿色制备技术国家地方联合工程研究中心, 化学与环境学院, 昆明 650503
    2.曲靖师范学院化学与环境科学学院, 曲靖 655011
  • 收稿日期:2022-10-14 出版日期:2023-06-10 发布日期:2022-12-06
  • 通讯作者: 刘腾,黄超 E-mail:15288404381@163.com;huangchao@ynu.edu.cn
  • 基金资助:
    国家自然科学基金(21662046);云南省教育厅科研基金(2021Y667);云南地方高校科研基金(202101BA070001-049)

Continuous Flow Synthesis of Structurally Symmetrical N-aryl 4-Pyridinones via a Multicomponent Tandem Reaction

YANG Qi1, LI Weiqiang1, HUANG Shuntao1, LI Jingpeng1, LIU Teng2(), HUANG Chao1()   

  1. 1.National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials,School of Chemistry and Environment,Yunnan Minzu University,Kunming 650503,China
    2.College of Chemistry and Environmental Science,Qujing Normal University,Qujing 655011,China
  • Received:2022-10-14 Online:2023-06-10 Published:2022-12-06
  • Contact: LIU Teng, HUANG Chao E-mail:15288404381@163.com;huangchao@ynu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21662046);the Scientific Research Fund of Yunnan Provincial Department of Education, China(2021Y667);the Yunnan Local Colleges Research Projects of China(202101BA070001-049)

摘要:

报道了一种从多个简单易得原料出发, 在单反应线圈连续流动下简洁高效合成结构对称的N-芳基- 4-吡啶酮衍生物的合成方法. 该路线以廉价易得的芳香胺、 原甲酸三乙酯及3-氧代戊烷二酸二烷基酯为原料, 乙醇为反应溶剂, 在无催化剂条件下, 经连续流动20~90 min串联环化反应, 合成了24个N-芳基-4-吡啶酮衍生物. 该方法操作简洁、 产率高, 且产物仅需重结晶, 无需柱层析分离, 为结构对称N-芳基-4-吡啶酮类化合物的制备提供了新方案.

关键词: 连续流动技术, 多组分反应, N-芳基4-吡啶酮, 串联反应

Abstract:

A concise and efficient approach involving multicomponent tandem reaction to the synthesis of structurally symmetrical N-aryl-4-pyridinone derivatives utilized by continuous flow technology was developed. N-aryl-4-pyridones(24 examples) were synthesized using this practice protocol. The significant benefits of this method are three cheap and easily available raw materials, such as aromatic amines, triethyl orthoformate and 3-oxo-pentanedioic acid dialkyl ester, ethanol as solvent, catalyst-free reaction under mild conditions, short reaction times(20—90 min). It is worth noting that compared with the traditional batch reaction, this method has simple operation and high yield, and the product only needs to be recrystallized without column chromatography separation, which provides a new scheme for the preparation of symmetrical N-aryl-4-pyridone compounds.

Key words: Continuous flow technology, Multicomponent reaction, N-Aryl-4-pyridinone, Cascade reaction

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