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HERO ID
7904851
Reference Type
Journal Article
Title
Visible-light-initiated one-pot clean synthesis of nitrone from nitrobenzene and benzyl alcohol over CdS photocatalyst
Author(s)
Yu, W; Guo, X; Song, C; Zhao, Z
Year
2019
Is Peer Reviewed?
Yes
Journal
Journal of Catalysis
ISSN:
0021-9517
EISSN:
1090-2694
Publisher
Academic Press Inc.
Volume
370
Page Numbers
97-106
Language
English
DOI
10.1016/j.jcat.2018.12.011
Web of Science Id
WOS:000460493700012
Abstract
The controlled visible-light mediated conversion of nitroaromatics to versatile nitrogen-containing intermediates is of great significance but still remains a challenge. Herein, we report for the first time a facile visible-light-initiated one-pot strategy for clean and efficient synthesis of nitrone from nitrobenzene and benzyl alcohol. It integrates the controlled photocatalytic reduction of nitrobenzene to phenylhydroxylamine by photogenerated electrons with the selective photocatalytic oxidation of benzyl alcohol to benzaldehyde by photoinduced holes over a low-cost CdS photocatalyst with a suitable reduction capability, followed by spontaneous condensation of the as-formed hydroxylamine and aldehyde at ambient pressure and room temperature. Furthermore, by modulating cocatalyst and illumination time, for the conversion of the same reactants, the other two useful nitrogen-containing compounds, imine and secondary amine, were also successfully synthesized. The reaction mechanisms for flexible synthesis of the three target products are proposed. © 2018 Elsevier Inc.
Keywords
One-pot strategy; Clean synthesis; Nitrone; Imine and secondary amine; Nitrobenzene and benzyl alcohol; Photocatalysis
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