Abstract
Reduction-and-oxidation (redox) reactions are one of the most utilized approaches for the synthesis of value-added compounds. With the growing awareness of green chemistry, researchers have searched for new and sustainable pathways for performing redox reactions. From this, a new field has gained tremendous attention, namely photoredox catalysis. Here, molecules can be easily oxidized or reduced with the use of one of Nature’s biggest resources: visible light. This tutorial paper gives the basics of photoredox catalysis along with limited examples to encourage further research in this blooming research area.
1 Introduction
2 Redox Chemistry
3 Photochemistry
3.1 Laws of Photochemistry
3.2 Principles
3.3 Examples
4 Photoredox Catalysis
4.1 General Principles
4.2 Classification of Redox Processes
4.3 Other Mechanistic Considerations
4.4 Stern–Volmer Plots
4.5 Photophysical Properties
4.6 Redox Potentials
5 Photocatalysts
5.1 Metal-Based Photocatalysts
5.2 Organic Dyes
5.3 Semiconductors
6 Dual Catalysis
7 Conclusions
Key words
photoredox catalysis - oxidation - reductions - photocatalysts - organic synthesis
