KMnO_4氧化相转移催化合成对硝基苯甲酸  

Synthesis of p-Nitrobenzoic Acid by KMnO_4 as Oxidant in Presence of Phase Transfer Catalyst PEG

作　　者：邵啸[1] 刘显明[1] 

机构地区：[1]南京理工大学泰州科技学院化工学院,江苏泰州225300

出　　处：《化工技术与开发》2013年第7期18-20,共3页Technology & Development of Chemical Industry

基　　金：南京理工大学泰州科技学院"梦兰神彩实践创新奖励基金"项目

摘　　要：以PEG为相转移催化剂,KMnO4为氧化剂,在酸性条件下实现对硝基甲苯的氧化,探讨了相转移催化剂用量、反应温度、反应时间、KMnO4用量等反应条件对目标化合物收率的影响。结果表明,在酸性介质中,以KMnO4、PEG-200为氧化催化体系,KMnO4与对硝基甲苯摩尔比为3∶1,在90℃条件下,反应时间3h,对硝基苯甲酸收率最高达到47.25%。p-Nitrobenzoic acid was prepared with KMnO4 as oxidant, PEG as phase transfer catalyst under several different conditions. The molar amount of PEG to KMnO4, reaction temperature, reaction time, etc, on the yields of target compounds were investigated. The result showed that the yields of target compounds could be reached to 92.5% with reacting temperature at 90℃, reacting time by 3h, mole ratio of KMnO4 to p-nitrotoluene was 3 ： 1 in neulral medium under the oxidative catalysis system of K_MnO4, PEG-200.

关 键 词：聚乙二醇 KMNO4 相转移催化 对硝基甲苯 对硝基苯甲酸 

分 类 号：O625.615[理学—有机化学] O625.611[理学—化学]