Coupling photocatalytic water oxidation with reductive transformations of organic molecules

Xinzhe Tian, Yinggang Guo, Wankai An, Yun-Lai Ren (), Yuchen Qin, Caoyuan Niu and Xin Zheng
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Xinzhe Tian: Henan Agricultural University
Yinggang Guo: Henan Agricultural University
Wankai An: Henan Agricultural University
Yun-Lai Ren: Henan Agricultural University
Yuchen Qin: Henan Agricultural University
Caoyuan Niu: Henan Agricultural University
Xin Zheng: Henan Agricultural University

Nature Communications, 2022, vol. 13, issue 1, 1-10

Abstract: Abstract The utilization of readily available and non-toxic water by photocatalytic water splitting is highly attractive in green chemistry. Herein we report that light-induced oxidative half-reaction of water splitting is effectively coupled with reduction of organic compounds, which provides a light-induced avenue to use water as an electron donor to enable reductive transformations of organic substances. The present strategy allows various aryl bromides to undergo smoothly the reductive coupling with Pd/g-C3N4* as the photocatalyst, giving a pollutive reductant-free method for synthesizing biaryl skeletons. Moreover, the use of green visible-light energy endows this process with more advantages including mild conditions and good functional group tolerance. Although this method has some disadvantages such as a use of environmentally unfriendly 1,2-dioxane, an addition of Na2CO3 and so on, it can guide chemists to use water as a reducing agent to develop clean procedures for various organic reactions.

Date: 2022
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DOI: 10.1038/s41467-022-33778-9

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