1-萘胺氧化合成1,4-萘醌  

Synthesis of 1,4-Naphthoquinone by Oxidation of 1-Naphthylamine

作　　者：张天永[1] 杜晶[1] 李彬[1] 王晓[1] 

机构地区：[1]天津大学化工学院精细化工系,天津300072

出　　处：《应用化学》2013年第5期500-505,共6页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金(21103121);教育部博士点基金(20110032120011)资助项目

摘　　要：研究了在乙酸中,用H2O2氧化1-萘胺合成1,4-萘醌的新方法。考察了反应温度、反应时间、1-萘胺与H2O2摩尔比、硫酸和H2O2质量分数等因素对产品收率的影响。得到较优的反应条件为:1-萘胺与H2O2摩尔比为1∶10、H2O2质量分数为5%、硫酸质量分数为45%、反应温度为80℃、反应时间为3 h。在此条件下,1,4-萘醌的收率为52.2%。该方法具有操作简单、反应时间短和产物易分离等优点。A new process was developed to oxidize 1-naphthylamine by H202 in acetic acid for preparing 1,4- naphthoquinone. The effects of the reaction temperature, the oxidation time, molar ratio of 1-naphthylamine to H2O2, the concentration of sulfuric acid and the concentration of H2O2 on the product yield were investigated. The optimal reaction conditions for preparing 1,4-naphthoquinone with yield higher than 52. 2% are as followings ：the molar ratio of 1-naphthylamine to H2 O2 is 1：10, the mass concentration of H2O2 is 5%, the mass concentration of sulfuric acid is 45%, reaction temperature is 80 ℃, and reaction time is 3 h. This method has the advantages such as simplicity, easy separation of the product and short reaction time.

关 键 词：萘胺 萘醌 H2O2 氧化 

分 类 号：O625.4[理学—有机化学]