Photocatalyzed Oxygenation Reactions with Organic Dyes: State of the Art and Future Perspectives

Oxygen atom incorporation into organic molecules is one of the most powerful strategies to increase their pharmacological activity and obtain valuable intermediates in synthesis. Traditional oxidizing agents perform very well, but environmental impact low selectivity constitute significant limitations. On contrary, visible-light-promoted oxygenations represent a sustainable method for compounds, since only molecular oxygen photocatalyst are required. Therefore, photocatalytic oxygenation reactions exhibit high atom-economy eco-compatibility. This mini-review collects analyzes recent literature on organo-photocatalysis applications promote selective substrates. In particular, acridinium salts, Eosin Y, Rose Bengal, cyano-arenes, flavinium quinone-based dyes widely used as photocatalysts several transformations alkanes, alkenes, alkynes, aromatic amines, phosphines, silanes, thioethers. this context, organo-photocatalysts proved be highly efficient catalytic terms, showing similar or even superior performances with respect metal-based counterparts, while maintaining impact. addition, given mild reaction conditions, photo-oxygenation processes often display remarkable selectivity, which striking feature late-stage functionalization complex molecules.