Visible-Light-Induced Aerobic Oxidation of Alcohols in a Coupled Photocatalytic System of Dye-Sensitized TiO2 and TEMPO

被引:442
作者
Zhang, Miao [1 ]
Chen, Chuncheng [1 ]
Ma, Wanhong [1 ]
Zhao, Jincai [1 ]
机构
[1] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Photochem, Beijing 100190, Peoples R China
关键词
photooxidation; radical reactions; TEMPO; TiO2; visible light;
D O I
10.1002/anie.200803630
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) Like a differential gear: Upon irradiation with visible light, excited dye molecules inject electrons into TiO2 and form dye radicals, which can oxidize TEMPO to TEMPO+, which in turn oxidizes alcohols in the presence of O2 selectively to corresponding aldehydes. One reason for the selectivity is that the irradiation is downshifted to visible light. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:9730 / 9733
页数:4
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