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相转移催化合成对溴苯甲酸的研究
引用本文:刘荣,戚小露,支三军.相转移催化合成对溴苯甲酸的研究[J].淮阴师范学院学报(自然科学版),2011,10(4):316-318.
作者姓名:刘荣  戚小露  支三军
作者单位:1. 江苏科圣化工机械有限公司,江苏淮安,223002
2. 淮阴师范学院化学化工学院,江苏淮安,223300
摘    要:研究了以水为溶剂,三乙基苄基氯化胺(TEBA)为催化剂,对溴甲苯为原料,高锰酸钾为氧化剂,在酸性和碱性条件下合成对溴苯甲酸的反应.考察了催化剂用量、反应物摩尔比、反应温度、反应时间等对反应的影响.最优条件为:以水为溶剂,n(对溴甲苯)∶n(KMnO4)∶n(Na2CO3)为1.0∶2.5∶1.0,TEBA(5%)为催化...

关 键 词:相转移催化  对溴苯甲酸  合成

The Synthesis of 4-Bromobenzoic Acid with Phase Transfer Catalyst
LIU Rong,QI Xiao-lu,ZHI San-jun.The Synthesis of 4-Bromobenzoic Acid with Phase Transfer Catalyst[J].Journal of Huaiyin Teachers College(Natrual Science Edition),2011,10(4):316-318.
Authors:LIU Rong  QI Xiao-lu  ZHI San-jun
Institution:LIU Rong1,QI Xiao-lu2,ZHI San-jun2(1.Jiangsu Kesheng Chemical Machinery Co.,Ltd.,Huaian Jiangsu 223002,China)(2.School of Chemistry and Chemical Engineering,Huaiyin Normal University,Huaian Jiangsu 223300,China)
Abstract:Research on synthesis of 4-bromobenzoic acid was investigated with 4-bromotoluene as raw material,potassium permanganate as the oxidant,TEBA as catalyst,in acid or alkali conditions.A series of experiments were inspected to study the influence on the reaction.Optimization: with water as solvent,TEBA(5%) as catalyst,n(4-bromotoluene)∶n(KMnO4)∶n(Na2CO3)=1.0∶2.5∶1.0,at 95℃ for 2.5 h,4-bromobenzoic acid was obtained in the yield of 82.4%.
Keywords:phase transfer catalyst  4-bromobenzoic acid  synthesis  
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