文章摘要
朱英红,张安伦,曹志成,刘建超,廖艳梅.有机媒质作用下芳香醛的间接电合成[J].精细化工,2018,35(12):
有机媒质作用下芳香醛的间接电合成
Indirect Electro-synthesis of Aromatic Aldehyde Under Organic Mediators
投稿时间:2018-02-13  修订日期:2018-04-29
DOI:
中文关键词: 芳香醛  有机媒质  间接电氧化  选择性电氧化  氧化还原可逆性
英文关键词: aromatic aldehyde  organic mediator  indirect electro-oxidation  selective electro-oxidation  reversibility
基金项目:973前期研究项目(2012CB722604)和国家重点研发计划项目(2017YFB0307503)
作者单位E-mail
朱英红 浙江工业大学 yhzhuchem@zjut.edu.cn 
张安伦 浙江工业大学  
曹志成 浙江工业大学  
刘建超 浙江工业大学  
廖艳梅 浙江工业大学  
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中文摘要:
      合成了含硝基的芳基咪唑(M)、三苯胺(P)和咔唑(C)三种有机媒质,通过循环伏安法(CV)测试了这三种有机媒质的电化学性能,发现不同的有机框架对媒质的氧化还原电位和电化学可逆性有很大的影响。在室温下通过CV和恒电位电解研究了P和C 对对甲氧基甲苯(p-MT)的电催化氧化性能,在1mmol/L的P作用下,加入10%的水(体积分数),1.2V下,p-MT电化学氧化成对甲氧基苯甲醛(p-MBA)的产率可达83%。而对氧化电位较高的对甲氧基苯甲醇(p-MBzOH)电催化氧化成p-MBA均表现出很好电催化活性和选择性。通过对同一种反应底物选择性电氧化为p-MBA的性能比较,发现氧化还原电位较低的P适合于具有较低氧化电位的p-MT,而氧化还原电位较高的C更适合于具有较高氧化电位的p-MBzOH。
英文摘要:
      Three kinds of organic mediators based on arylimidazole (M), triphenylamine (P) and carbazole (C) were synthesized and their electrochemical redox reversibility were characterized through CV. Their redox potentials and electrochemical reversibility were greatly effected by the organic framework of the mediator. The electro-oxidation activity of p-MT under P and C, respectively, were studied through CV and controlled potential electrolysis at room temperature. When 10% H2O was added,the yield of p-MBA was 83% on the electro-oxidation of p-MT under 1mmol/L P at 1.2V. And the excellent electro-catalytic activity and selectivity on the electro-oxidation of p-MBzOH to p-MBA were showed. Compared the activity of P and C on the selectively electro-oxidation synthesis of p-MBA,P with lower redox potential was suit for p-MT with lower oxidation potential, while C with higher redox potential was suit for p-MBzOH with higher oxidation potential.
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