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Citation: ZHANG Zheng-Bo, ZHOU San-Yi, NIE Jin, LIU Wen-Ming, LIU Lian. Polymer-Supported Yb(NTf₂)₃ as Catalyst for Esterification and Nitration[J]. Chinese Journal of Applied Chemistry, ;2006, 23(8): 897-901. shu

Polymer-Supported Yb(NTf₂)₃ as Catalyst for Esterification and Nitration

1.
Department of Chemistry, Huazhong University of Science & Technology, Wuhan 430074

Corresponding author: NIE Jin,
Received Date: 28 August 2005
Available Online: 9 November 2005

Polymer-supported Yb(NTf₂)₃ was prepared in this paper.As a novel heterogeneous Lewis acid catalyst,its catalytic activity was investigated for the esterification of benzoic acid with ethanol and nitration of toluene,and its recycling ability was also studied.At 80℃,the yield of esterification of benzoic acid with ethanol could reach 95% by using 10%(molar fraction) catalyst for 6 h;the conversion of toluene in the nitration with 1 equiv.of 65%(mass ratio) nitric acid could be achieved to 99% by using 5%(molar fraction) catalyst for 5 h.
- polymer-supported Yb(NTf₂)₃,
- Lewis acid catalysis,
- esterification,
- nitration,
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Polymer-Supported Yb(NTf₂)₃ as Catalyst for Esterification and Nitration