Hydroxylamine Derivatives as Nitrogen‐Radical Precursors in Visible‐Light Photochemistry

In recent years, hydroxylamines derivatives have been exploited as nitrogen‐radical precursors in visible‐light photochemistry. Their ability to serve as electrophores in redox chemistry has propelled the development of many novel transformations. Fundamental mechanistic aspects as well as the importance in the preparation of nitrogen‐containing molecules will be highlighted. Visible‐light photocatalysis enables the formation of nitrogen radicals from simple hydroxylamine derivatives. This Concept article highlights the most notable developments in the field. Relevant applications in the synthesis and late‐stage modification of complex molecules are included along with the underpinning mechanistic analysis.