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Chin. J. Org. Chem. ›› 2009, Vol. 29 ›› Issue (08): 1259-1263. Previous Articles     Next Articles

Reports

超声辐射下硫酸催化合成1,1-二乙酸酯

张英群* ; 张美月; 刘伟华 ; 李越敏 ; 刘 敏 ; 王 春   

  1. (河北农业大学理学院 保定 071001)
  • 收稿日期:2008-10-09 修回日期:2009-01-05 发布日期:2009-08-30
  • 通讯作者: 张英群

Synthesis of 1,1-Diacetates via H2SO4 Catalysis under Ultrasonic Irradiation

Zhang, Yingqun* ; Zhang, Meiyue; Liu, Weihua; Li, Yuemin ;Liu, Min ;Wang, Chun

  

  1. College of Sciences, Agricultural University of Hebei, Baoding 071001

  • Received:2008-10-09 Revised:2009-01-05 Published:2009-08-30
  • Contact: Zhang, Yingqun

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A series of 1,1-diacetates were synthesized by the acetalization reactions of aromatic aldehydes with acetic anhydride using H2SO4 as catalyst under ultrasonic irradiation at room temperature. At a molar ratio of 1∶1.6 of aromatic aldehydes to acetic anhydride the reactions were catalyzed by 10 mol% H2SO4 in 25～30 ℃ for 10～15 min in high yields from 85.2% to 98%. The products were identified by 1H NMR and IR spectra.

Key words: H2SO4, 1,1-diacetate, synthesis, ultrasonic irradiation