Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (11): 1289-1294.DOI: 10.11944/j.issn.1000-0518.2016.11.160026

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Synthesis of Pyridines via Copper-catalyzed Reaction of Oxime Acetates with Benzyl Alcohols

SHI Yun(),REN Chaojie,ZHANG Ning   

  1. College of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou 730000,China
  • Received:2016-01-15 Accepted:2016-05-11 Published:2016-11-01 Online:2016-11-01
  • Contact: SHI Yun
  • Supported by:
    Supported by National Natural Science Foundation of China(No.21101663), Gansu Province Youth Science and Technology Fund Project(No.1107RJYA080)

Abstract:

Pyridine derivatives were synthesized in a one-pot reaction from oxime acetates and benzyl alcohols in the presence of copper(Ⅱ) trifluoromethanesulfonate [Cu(OTf)2] catalyst. The effect of catalysts and their dosage, raw material ratios, solvents, and temperatures on the yield were investigated. The target compound 2,4,6-trisubstituted pyridine was obtained in 88% yield under the optimum condition. The molecular structures of products were analyzed by mass spectrometry and nuclear magnetic resonance spectroscopy(1H NMR and 13C NMR). The method has several advantages:commerically available materials, easy operation, mild reaction conditions, good yields and a wide range of functional group tolerance.

Key words: oxime acetate, benzyl alcohol, copper-catalyzed, pyridine derivative, one-pot reaction