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Keywords:

  • aziridines;
  • cycloaddition;
  • flow chemistry;
  • photochemistry;
  • rearrangement
Thumbnail image of graphical abstract

Molecular acrobatics: Irradiation of N-butenyl-substituted pyrroles that bear an electron-withdrawing group leads to complex tricyclic aziridines through an unprecedented photocycloaddition–rearrangement sequence. Gram quantities of these complex products could be produced by using a bespoke flow reactor (see picture, FEP=fluorinated ethylene propylene).