Visible‐Light‐Promoted Reduction of Nitroarenes with Formate Salts as Reductants

A visible‐light‐promoted reduction of nitrobenzenes using formate salts as the reductant was developed. A wide range of nitrobenzenes can be converted into aniline products in a transition metal free fashion. Mechanistic studies revealed that radical species (carbon dioxide radical anion and thiol r...

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Bibliographic Details
Published in:Chemistry : a European journal 2024-12, Vol.30 (69), p.e202402870-n/a
Main Authors: Wu, Jun‐Yue, Wan, Yuan‐Cui, Shao, Yu, Zhan, Le‐Wu, Li, Bin‐Dong, Hou, Jing
Format: Article
Language:English
Subjects:
Aniline
Carbon dioxide
Carbon dioxide radical anion
Formate salts
Intermediates
Nitrobenzene
Photo-induced
Reducing agents
Thiol
Transition metals
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Summary:A visible‐light‐promoted reduction of nitrobenzenes using formate salts as the reductant was developed. A wide range of nitrobenzenes can be converted into aniline products in a transition metal free fashion. Mechanistic studies revealed that radical species (carbon dioxide radical anion and thiol radical) are key intermediates for the transformation. We anticipate that this method will provide a valuable and green strategy for the reduction of nitrobenzenes. A visible‐light‐promoted reduction of nitrobenzenes using the formate salt as the reductant is developed. A range of nitrobenzenes can be converted into value‐added anilines under blue light irradiation. Mechanistic studies revealed that arene thiol radicals and CO2⋅− are key intermediates for the transformation. The protocol represents a transition metal free and green example for the realization of such transformations.
ISSN:0947-6539
1521-3765
1521-3765
DOI:10.1002/chem.202402870