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Chemcial Industry and Engineering 2019, Vol. 36 Issue (6) :30-36    DOI: 10.13353/j.issn.1004.9533.20181074
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Synthesis of Butylparaben Catalyzed by AlCl3/SBA-15
Liu Xinyun1,2, Li Linlin1, Fu Hai1, Gong Wei1, Chen Zhuo1, Yin Xiaogang1
1. School of Chemistry and Materials Science, Guizhou Normal University, Guizhou Key Laboratory of Functional Materials Chemistry, Guiyang 550001, China;
2. School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025

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Abstract Five kinds of SBA-15 supported Lewis acid catalysts were prepared with mesoporous molecular sieve SBA-15 as the supporter. The structure of the catalyst was characterized by Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TG), N2 adsorption-desorption curve and specific surface area test (BET). It was found that Lewis acid was successfully loaded onto SBA-15. The effects of catalyst containing different Lewis acids, catalyst loading, molar ratio of starting materials, reaction time and reaction temperature on the yields of the esterification reaction to prepare butylparaben were investigated. The optimal reaction conditions are identified as the following:the molar ratio of AlCl3/SBA-15 is 2:1, the molar ratio of alcohol to acid is 3:1, the molar ratio of AlCl3/SBA-15 to p-hydroxybenzoic acid is 2:1. Under these reaction conditions at 135℃ for 3 h, the yield of butylparaben was up to 96.8%.
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Articles by authors
Liu Xinyun
Li Linlin
Fu Hai
Gong Wei
Chen Zhuo
Yin Xiaogang
Keywordsmesoporous molecular sieve SBA-15;   Lewis acid;   butylparaben     
Received 2018-12-08;
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Liu Xinyun, Li Linlin, Fu Hai, Gong Wei, Chen Zhuo, Yin Xiaogang.Synthesis of Butylparaben Catalyzed by AlCl3/SBA-15[J]  Chemcial Industry and Engineering, 2019,V36(6): 30-36
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