12. Excited radical anions and excited anions in visible light photoredox catalysis

Abstract Over the last decade, visible light photocatalysis has dramatically increased the arsenal of methods for organic synthesis and changed the way we activate molecules for chemical reactions. Polypyridyl transition metal complexes, redox-active organic dyes, and inorganic semiconductors are typically used as photocatalysts for such transformations. This chapter reviews the applications of radical anions and anions as photosensitizers in visible light photoredox catalysis.

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Regioselective C3-H Trifluoromethylation of 2H-Indazole Under Transition-Metal-Free Photoredox Catalysis

10.26434/chemrxiv.7796603.v1 ◽

2019 ◽

Cited By ~ 1

Author(s):

Arumugavel Murugan ◽

Venkata Nagarjuna Babu ◽

Nagaraj Sabarinathan ◽

Sharada Duddu. S

Keyword(s):

Transition Metal ◽

Visible Light ◽

Practical Approach ◽

Hypervalent Iodine ◽

Radical Mechanism ◽

Photoredox Catalysis ◽

Metal Free

Here we report a visible-light-promoted metal-free regioselective C3-H trifluoromehtylation reaction that proceeds via radical mechanism and which supported by control experiments. The combination of photoredox catalysis and hypervalent iodine reagent provides a practical approach for the present trifluoromethylation reaction and synthesis of a library of trifluoromethylated indazoles.

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Faculty Opinions recommendation of Batch to flow deoxygenation using visible light photoredox catalysis.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.718012691.793477212 ◽

2013 ◽

Author(s):

Steven L Castle

Keyword(s):

Visible Light ◽

Photoredox Catalysis

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Enantioselective Radical Functionalization of Imines and Iminium Intermediates via Visible Light Photoredox Catalysis

Synthesis ◽

10.1055/a-1343-6541 ◽

2020 ◽

Author(s):

Jia-Jia Zhao ◽

Hong-Hao Zhang ◽

Shouyun Yu

Keyword(s):

Visible Light ◽

Asymmetric Synthesis ◽

Carbonyl Compounds ◽

Asymmetric Reduction ◽

Chemical Transformations ◽

Photoredox Catalysis ◽

Radical Coupling ◽

Mild Conditions ◽

Iminium Ions ◽

Radical Functionalization

Visible light photoredox catalysis has recently emerged as a powerful tool for the development of new and valuable chemical transformations under mild conditions. Visible-light promoted enantioselective radical transformations of imines and iminium intermediates provide new opportunities for the asymmetric synthesis of amines and asymmetric β-functionalization of unsaturated carbonyl compounds. In this review, the advance in the catalytic asymmetric radical functionalization of imines, as well as iminium intermediates, are summarized. 1 Introduction 2 The enantioselective radical functionalization of imines 2.1 Asymmetric reduction 2.2 Asymmetric cyclization 2.3 Asymmetric addition 2.4 Asymmetric radical coupling 3 The enantioselective radical functionalization of iminium ions 3.1 Asymmetric radical alkylation 3.2 Asymmetric radical acylation 4 Conclusion

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Intermolecular Aminotrifluoromethylation of Alkenes by Visible-Light-Driven Photoredox Catalysis

Organic Letters ◽

10.1021/ol4006272 ◽

2013 ◽

Vol 15 (9) ◽

pp. 2136-2139 ◽

Cited By ~ 237

Author(s):

Yusuke Yasu ◽

Takashi Koike ◽

Munetaka Akita

Keyword(s):

Visible Light ◽

Photoredox Catalysis ◽

Visible Light Driven

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ChemInform Abstract: Photoredox Catalysis with Visible Light.

ChemInform ◽

10.1002/chin.201015242 ◽

2010 ◽

Vol 41 (15) ◽

Author(s):

Kirsten Zeitler

Keyword(s):

Visible Light ◽

Photoredox Catalysis

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Cross dehydrogenative coupling (CDC) of aldehydes with N-hydroxyimides by visible light photoredox catalysis

RSC Advances ◽

10.1039/c5ra05719a ◽

2015 ◽

Vol 5 (56) ◽

pp. 44928-44932 ◽

Cited By ~ 27

Author(s):

Milan Dinda ◽

Chandan Bose ◽

Tridev Ghosh ◽

Soumitra Maity

Keyword(s):

Visible Light ◽

Photoredox Catalysis ◽

Dehydrogenative Coupling

A visible light mediated cross-dehydrogenative-coupling (CDC) reaction has been developed for the synthesis of N-hydroxyester derivatives from aldehydes and N-hydroxyimides.

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