Citation: Bahador Karami, Mahtab Kiani, Mohsen Ahmad Hoseini. In(OTf)₃ as a powerful and recyclable catalyst for Pechmann condensation without solvent[J]. Chinese Journal of Catalysis, ;2014, 35(7): 1206-1211. doi: 10.1016/S1872-2067(14)60090-5 shu

In(OTf)₃ as a powerful and recyclable catalyst for Pechmann condensation without solvent

1.
Department of Chemistry, Yasouj University, Yasouj 75918-74831, Iran

Corresponding author: Bahador Karami,
Received Date: 15 December 2013
Available Online: 21 March 2014

In(OTf)₃ plays the role of a Lewis acid catalyst in the Pechmann condensation of phenols with β-ketoesters under solvent-free conditions to give coumarin derivatives. This novel and inexpensive method has advantages such as short reaction time, excellent product yields, and avoids the use of organic solvents in agreement with green chemistry principles. Catalyst loadings can be as low as 1 mol% to give high yields of the corresponding coumarins at 80℃. The catalyst can be recovered after the reaction, and reused with only a slight decrease in the yield.
- In(OTf)₃,
- Lewis acid catalyst,
- Pechmann condensation,
- Coumarin,
- Solvent-free condition
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

In(OTf)3 as a powerful and recyclable catalyst for Pechmann condensation without solvent

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通讯作者: 陈斌, bchen63@163.com

In(OTf)₃ as a powerful and recyclable catalyst for Pechmann condensation without solvent