Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (12): 3641.doi: 10.7503/cjcu20210486

• Organic Chemistry • Previous Articles     Next Articles

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)

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

CLC Number: 

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