Organophotocatalytic oxidation of alcohols to carboxylic acids

被引：10
|
作者：
Tambe, Shrikant D. [1 ]
Cho, Eun Jin [1 ]
机构：
[1] Chung Ang Univ, Dept Chem, 84 Heukseok Ro, Seoul 156756, South Korea
来源：
BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 2022年 / 43卷 / 11期
基金：
新加坡国家研究基金会;
关键词：
aerobic oxidation; alcohol; carboxylic acid; photocatalysis; visible light; AEROBIC OXIDATION; SELECTIVE PHOTOOXIDATION; PHOTOREDOX CATALYSIS; AMINES;
D O I：
10.1002/bkcs.12610
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A sustainable photochemical protocol for the oxidation of alcohols to ketones and carboxylic acids has been developed by using 2,4,6-triphenylpyrylium tetrafluoroborate (TPPT) as organophotocatalyst and molecular oxygen as oxidant under visible light irradiation. The key reactive oxygen species, superoxide (O-2(center dot-)) for the first oxidation step from alcohol to aldehyde and singlet oxygen (O-1(2)) for the second oxidation step from aldehyde to carboxylic acid, were generated successfully by electron transfer and energy transfer pathways, respectively. A range of primary and secondary alcohols were converted to the corresponding carboxylic acids or ketones, and the optimized reaction conditions were applied to the synthesis of benzocoumarin.
引用
收藏
页码：1226 / 1230
页数：5
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