Microwave-accelerated esterification of salicylic acid using Brönsted acidic ionic liquids as catalysts
详细信息 查看全文
- 作者：Hua Shi ; Wenshuai Zhu ; Huaming Li ; Hua Liu ; Ming Zhang ; Yongsheng Yan ; Zhigao Wang
- 关键词：Salicylic acid ; Esterification ; Ionic liquid ; Microwave irradiation ; Brö ; nsted acidity
- 刊名：Catalysis Communications
- 出版年：2010
- 出版时间：10 March 2010
- 年：2010
- 卷：11
- 期：7
- 页码：588-591
- 全文大小：188 K
文摘
A variety of Brönsted acidic ionic liquids were screened as catalysts for the esterification of salicylic acid. The experimental results indicated that SO3H-functionalized ionic liquids with performed high catalytic activity under microwave irradiation, and the yields can reach 91.9–93.6 % . Furthermore, ionic liquids can be easily separated by simple decantation and have a fair reusability. The Brönsted acidity–catalytic activity relationships were also investigated and the results showed that the activity of the acidic ionic liquids is in excellent agreement with their acidity order.