期刊
CHEMICAL SOCIETY REVIEWS
卷 50, 期 11, 页码 6320-6332出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1cs00262g
关键词
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资金
- JSPS KAKENHI [JP17H06449, JP18K05135, JP18H01971, JP21H04681]
- JST, PRESTO [JPMJPR19T2]
- Kanazawa University SAKIGAKE project 2020
Visible-light-mediated chemical processes have been extensively studied, leading to cutting-edge synthetic chemistry by controlling radical generation and excited-state transformations. While photoredox chemistry is important, it often involves photocatalysts and redox processes, complicating reactions. A breakthrough in this field is the development of a system free of photocatalysts, providing more straightforward and energetically efficient methods.
Visible-light-mediated chemical processes have been vigorously studied and have led to state-of-the-art synthetic chemistry since they enable the control of radical generation and excited-state-based transformations. The essential process is the generation of a radical species via single electron transfer (SET) between the substrate and catalyst. While photoredox chemistry is an important methodology, these systems essentially require photocatalysts and involve redox processes of the catalyst in the catalytic cycle, which often complicates the reaction. Hence, a seminal contribution in the area of photoredox chemistry is the development of a system free of a photoredox catalyst. In this tutorial review, we summarise the chronology of C-centred radicals, including photoredox chemistry, and shed light on the direct excitation strategy that enables the generation of radical species without exogenous photocatalysts. This strategy provides more straightforward methods, which are energetically efficient in principle, with the potential to open a new window into organic synthesis.
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