Metal-Free, Visible Light-Promoted Aerobic Aldehydes Oxidation

被引:0
作者
Zine Eddine Hamami
Laurent Vanoye
Pascal Fongarland
Claude de Bellefon
Alain Favre-Reguillon
机构
[1] Univ Lyon,Laboratoire de Génie des Procédés Catalytiques (UMR 5285), CPE Lyon
[2] Conservatoire National des Arts et Métiers,undefined
[3] CASER-SITI-CG,undefined
来源
Journal of Flow Chemistry | 2016年 / 6卷
关键词
photooxidation; aldehydes; LED;
D O I
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中图分类号
学科分类号
摘要
An efficient and metal-free method for the oxidation of aldehydes to the corresponding carboxylic acids has been developed. In a simple continuous-flow photochemical reactor, the use of camphorquinone (CQ) irradiated with a white light-emitting diode (LED) source enhanced the autoxidation of aldehydes. Under 5 bar of oxygen, visible light, and 0.3 mol% of CQ, the rate of oxidation was increased from 6 times with 2-ethylhexanal to 30 times for n-nonanal. The large interfacial area generated by a segmented flow apparatus associated with radicals formed by photooxidation of CQ ensures metal-free high throughput of carboxylic acids under safe conditions.
引用
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页码:206 / 210
页数:4
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