节点文献

相转移催化氧化合成氯代苯甲酸

Phase Transfer Catalytic Synthesis of Chlorobenzoic Acid Using Quaternary Ammonium Salt A-1 as a Catalyst

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 聂西度李晓如

【Author】 NIE Xi-du 1,2, LI Xiao-ru 1 (1. Department of Chemistry, Hengyang Branch of Hunan University, Hengyang 421101, China; 2. College of Chemisty and Chemical Engineering Central South University, Changsha 410083, China)

【机构】 湖南大学衡阳分校化学系中南大学化学化工学院 湖南衡阳421101中南大学化学化工学院湖南长沙410083湖南长沙410083

【摘要】 研究了以季铵盐A 1作催化剂 ,KMnO4作氧化剂 ,催化氧化邻、对位氯代甲苯合成邻、对位氯代苯甲酸的反应。优化反应条件为 :氯代甲苯 5 0mmol,n(氯代甲苯 )∶n(KMnO4)∶n(A 1)∶n(H2 O) =1.0 0∶2 .6 0∶0 .0 5∶30 0 ,反应温度 93℃ ,反应时间 2 .5h ,pH =7。邻、对位氯代苯甲酸的产率分别为 76 .4 % ,76 .9%。

【Abstract】 The catalytic synthesis of o-,p-chlorobenzoic aicd using quaternary ammonium salt A-1 as a phase transfer catalyst(PTC)was reported. The optimal reaction conditions were determined as follows: chloroluene was 50mmol, n(chlorotoluene) ∶n(KMnO 4) ∶n(A-1) ∶ n(H 2O) was 1.00 ∶2.60 ∶0.05 ∶300, the reaction temperature was 93℃, the reaction time was 2.5h, pH was about 7. The yields of o-,p-chlorobenzoic acid were 76.9% and 76.4%, respectively.

  • 【文献出处】 合成化学 ,Chinese Journal of Synthetic Chemistry , 编辑部邮箱 ,2004年04期
  • 【分类号】O625.51
  • 【被引频次】4
  • 【下载频次】209
节点文献中: 

本文链接的文献网络图示:

本文的引文网络