Liang Hong-ze
2013
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Journal
Journal of Ningbo University
Abstract
With acidic ionic liquid [(CH2)3SO3Hmin]HSO4 as a catalyst,the mechanism of ethanol-related 4-Nitrobenzoic acid to form ethyl 4-nitrobenzoate is studied.Factors affecting the yields are investigated.Under optimized reaction conditions with molar ratio of: acid:ethanol:ionic liquid being 1:15:1.5,temperature being 85 ℃ and reaction time being 2 h,the yield is found to be able to reach 85.10%.Also found is that the ionic liquid remains catalytically active after 5 cycles of reuse.