四丁基溴化铵催化氧化β-甲基萘的研究  

Study on Catalytic Oxidation of β-methylnaphthalene with Tetrabutyl Ammonium Bromide

作　　者：康士刚[1] 赵雪飞[2] 

机构地区：[1]安徽工业大学化学与化工学院安徽省教育厅煤的洁净转化与综合利用重点实验室,安徽马鞍山243002 [2]辽宁科技大学化工学院,辽宁鞍山114044

出　　处：《化工技术与开发》2012年第3期7-9,34,共4页Technology & Development of Chemical Industry

摘　　要：利用溴酸钾在冰醋酸溶剂下氧化β-甲基萘制备β-甲基萘醌。考察了催化剂种类、反应温度、反应时间、氧化剂与原料的摩尔比等因素对目标产物收率的影响,从而获得了较优的反应条件:相转移催化剂为四丁基溴化铵,反应温度80℃,反应时间5h,氧化剂与原料的摩尔比2.5∶1。在以上较优条件下,β-甲基萘转化率为81.46%,β-甲基萘醌的选择率59.07%。β-methynaphthoquinone was obtained in acetic acid by oxidation of β-methylnaphthalene with KBrO3.The effects of catalysts,temperature,time and mole ratio of oxidant to β-methylnaphthalene on the reaction had been investigated.The optimal conditions were determined as followed: phase transfer catalyst tetrabutyl ammonium bromide,reaction temperature 80℃,reaction time 5h and mole ratio of oxidant to β-methylnaphthalene 2.5:1.The conversion of β-methylnaphthalene was 81.46% and the selectivity of β-methynaphthoquinone was 59.07% under above conditions.

关 键 词：Β-甲基萘 Β-甲基萘醌 催化氧化 

分 类 号：TQ463.4[化学工程—制药化工]