Citation: Guo Liang Feng. An efficient synthesis of 2,2-bis (1H-indol-3-yl)-2H-acenaphthen-1-one catalyzed by recyclable solid superacid SO₄^2-/TiO₂ under grinding condition[J]. Chinese Chemical Letters, ;2010, 21(9): 1057-1061. doi: 10.1016/j.cclet.2010.05.009 shu

An efficient synthesis of 2,2-bis (1H-indol-3-yl)-2H-acenaphthen-1-one catalyzed by recyclable solid superacid SO₄^2-/TiO₂ under grinding condition

Guo Liang Feng

School of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China

Received Date: 7 January 2010

Fund Project: This work was financially supported by the research foundation of Hebei University of Science and Technology.

An efficient synthesis of symmetrical 2, 2-bis(1H-indol-3-yl)-2H-acenaphthen-1-one is achieved via a reaction of acenaphthe-nequinone and indoles catalyzed by solid superacid SO₄^2-/TiO₂ under solvent-free conditions at room temperature by grinding, which provides an efficient route to the synthesis of symmetrical 2, 2-bis(1H-indol-3-yl)-2H-acenaphthen-1-one. This procedure offers several advantages including solvent-free conditions, excellent yields of products, simple work-up as well as reuse of catalysts which makes it a useful and attractive protocol for the synthesis of these compounds.
- Acenaphthenequinone,
- Indole,
- Solid superacid SO₄^2-/TiO₂,
- 2,2-Bis (1H-indol-3-yl)-2H-acenaphthen-1-one
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