Photocatalyzed Formation of Heterocycles

  • Stefano Crespi
  • Maurizio Fagnoni
Part of the Topics in Heterocyclic Chemistry book series (TOPICS, volume 54)


Among the several approaches available for the formation of heterocycles, in the last years photocatalysis has become a unique tool. This peculiar strategy relies on the photocatalyzed formation of ground-state high-energy intermediates (e.g., radicals or radical ions) that furnishes the desired compounds upon a cyclization step, mostly involving an unsaturated or an aromatic moiety. The photocatalyzed approach is especially well suited for the formation of five- and six-membered rings containing oxygen and nitrogen, as detailed in the following.


Electron transfer Photocatalysis Radical ions Radicals Visible light 


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.PhotoGreen Lab, Department of ChemistryUniversity of PaviaPaviaItaly

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