Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (6): 1158.

• Articles • Previous Articles     Next Articles

Synthesis of β-Indolylketones Catalyzed by BrΦnsted Acidic Ionic Liquid [HSO3-bpy][HSO4]

YU Chuan-Ji, LIU Chen-Jiang*   

  1. Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education, School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China
  • Received:2009-08-31 Online:2010-06-10 Published:2010-06-10
  • Contact: LIU Chen-Jiang. E-mail: pxylcj@126.com
  • Supported by:

    国家自然科学基金(批准号: 20862016)资助.

Abstract:

The BrΦnsted acidic ionic liquid [HSO3-bpy][HSO4] was reported as an efficient catalyst for the Michael addition reaction of indoles to α,β-unsaturated ketones. The reactions were carried out at 80 ℃ in acetonitrile for 3 h with stirring. Satisfactory results were obtained, with excellent yields and a simple experimental procedure. In addition, the ionic liquid was environmentally friendly and reused for three times without any noticeable decrease in the catalytic activity.

Key words: Brnsted acidic ionic liquid; α,β-Unsaturated ketone; β-Indolylketone

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