化学研究
化學研究
화학연구
CHEMICAL RESEARCHES
2011年
3期
35-39
,共5页
张新慧%蒋君%颜博%鲁帅%董犇%朱卫民%薛华珍%杨贯羽
張新慧%蔣君%顏博%魯帥%董犇%硃衛民%薛華珍%楊貫羽
장신혜%장군%안박%로수%동분%주위민%설화진%양관우
对硝基甲苯%N-羟基邻苯二甲酰亚胺%二氧化锰%对硝基苯甲酸%催化氧化
對硝基甲苯%N-羥基鄰苯二甲酰亞胺%二氧化錳%對硝基苯甲痠%催化氧化
대초기갑분%N-간기린분이갑선아알%이양화맹%대초기분갑산%최화양화
p-nitrotoluene%N-hydroxyphthalimide%manganese dioxide%p-nitrobenzoic acid%catalyzed oxidation
采用N-羟基邻苯二甲酰亚胺(NHPI)和二氧化锰(MnO2)作为催化剂催化对硝基甲苯的氧化反应以制备对硝基苯甲酸;对反应条件进行了优化.结果表明,采用10%(与原料的摩尔比)NHPI和10%(与原料的摩尔比)MnO2作为催化剂,在110℃、氧气压力0.4 MPa下反应4 h,对硝基甲苯的转化率为97%,对硝基苯甲酸的分离产率为89%.
採用N-羥基鄰苯二甲酰亞胺(NHPI)和二氧化錳(MnO2)作為催化劑催化對硝基甲苯的氧化反應以製備對硝基苯甲痠;對反應條件進行瞭優化.結果錶明,採用10%(與原料的摩爾比)NHPI和10%(與原料的摩爾比)MnO2作為催化劑,在110℃、氧氣壓力0.4 MPa下反應4 h,對硝基甲苯的轉化率為97%,對硝基苯甲痠的分離產率為89%.
채용N-간기린분이갑선아알(NHPI)화이양화맹(MnO2)작위최화제최화대초기갑분적양화반응이제비대초기분갑산;대반응조건진행료우화.결과표명,채용10%(여원료적마이비)NHPI화10%(여원료적마이비)MnO2작위최화제,재110℃、양기압력0.4 MPa하반응4 h,대초기갑분적전화솔위97%,대초기분갑산적분리산솔위89%.
p-Nitrobenzoic acid was prepared by using manganese dioxide (MnO2) and Nhydroxyphthalimide (NHPI) as catalysts to efficiently catalyze the oxidation of p-nitrotoluene.The conditions of the oxidation reaction were optimized. It was found that in the presence of 10% (molar ratio) NHPI and 10% (molar ratio) MnO2 as the catalysts, p-nitrotoluene was converted at a rate of 97% and p-nitrobenzoic acid was harvested at an isolated yield of 89% after 4 h of catalyzed oxidation at 110 ℃ under an oxygen pressure of 0.4 MPa.
