Pyrene is one of the most attractive polycyclic aromatic hydrocarbons (PAHs) in photochemistry. Based on their redox properties, pyrenes have potential as photosensitizers. In this review, we summarize recent developments in pyrene-catalyzed photoinduced organic reactions occurring via energy transfer or single-electron transfer based on the excited state of the pyrene. 1 Introduction 2 Photolysis Involving N-O Bond Cleavage or Decarboxylation 3 (Cyclo)addition Reactions with Styrenes 4 Transformations via Cleavage of C-F, C-I, C-S and C-N Bonds 5 Reactions Based on Sensitization-Initiated Electron Transfer (SenI-ET) 6 Miscellaneous Transformations 7 Conclusion.
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