高等学校化学学报 ›› 2021, Vol. 42 ›› Issue (12): 3641.doi: 10.7503/cjcu20210486

• 有机化学 • 上一篇    下一篇

以四氢呋喃为醛基砌块合成(E)⁃α⁃羟乙基⁃α,β⁃不饱和醛

濮伟雯1, 史永森1, 刘建峰1, 柯德宏2, 吴孝兰2, 许胜1()   

  1. 1.华东理工大学化学与分子工程学院, 上海 200237
    2.国药集团化学试剂有限公司, 上海 200002
  • 收稿日期:2021-07-12 出版日期:2021-12-10 发布日期:2021-08-31
  • 通讯作者: 许胜 E-mail:xusheng@ecust.edu.cn
  • 基金资助:
    国家重点研发计划项目(2017YFB0306701)

Synthesis of (E)-α-Hydroxyethyl-αβ-unsaturated Aldehydes with Tetrahydrofuran as Carbonyl Source

PU Weiwen1, SHI Yongsen1, LIU Jianfeng1, KE Dehong2, WU Xiaolan2, XU Sheng1()   

  1. 1.School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China
    2.Sinopharm Chemical Reagent Co. ,Ltd. ,Shanghai 200002,China
  • Received:2021-07-12 Online:2021-12-10 Published:2021-08-31
  • Contact: XU Sheng E-mail:xusheng@ecust.edu.cn
  • Supported by:
    the National Key Research and Development Program of China(2017YFBO306701)

摘要:

以四氢呋喃(THF)为醛基砌块, 铜为催化剂, 过氧化叔丁醇(TBHP)为氧化剂, 将THF氧化为2-羟基四氢呋喃, 继而开环异构化为4-羟基丁醛, 在酸催化下与乙醇胺作用形成亚胺中间体(M); 以苄醇为底物, 通过铜催化氧化反应得到苯甲醛, 进而与M反应得到立体专一的(E)-α-羟乙基-α, β-不饱和醛; 利用二维相关谱确认了产物构型. 对反应底物进行了拓展, 结果表明, 该方法能够有效合成官能化的α, β-不饱和醛. 本文发展的合成方法具有底物范围广及合成工艺简单等优势.

关键词: 铜催化, 四氢呋喃, 多米诺反应, (E)-α-羟乙基-α, β?不饱和醛

Abstract:

In this paper, THF was used as carbonyl source and tert-butyl hydroperoxide(TBHP) was used as oxidant to oxidize THF to 2-hydroxytetrahydrofuran, and then isomerization to 4-hydroxybutyraldehyde by ring-opening reaction, then it reacted with ethanolamine under acid catalysis to form imine intermediate(M). On the other hand, benzaldehyde was obtained from benzyl alcohol by copper catalyzed oxidation reaction, and then reacted with M to obtain stereospecific(E)-α-hydroxyethyl-α,β-unsaturated aldehydes, which was further derivatized to obtain the α-functionalized α,β-unsaturated aldehydes. The configuration of the product was confirmed by COSY(homonuclear chemical shift correlation spectroscopy). Our method has the advantages of low cost and simple synthesis process.

Key words: Copper catalysis, Tetrahydrofuran, Domino reaction, E)-α-Hydroxyethyl-α, β-unsaturated aldehyde

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