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Pericyclic Reactions: Aromaticity of Transition States

ChemieOrganische ChemiePericyclische Reaktionen

This learning unit explains the topological method to determine the aromaticity of transition states according to Ewans, Dewar and Zimmermann.


  • Prof. Dr. Rainer Herges
  • Kirsten Klose


  • Dr. Guenter Grethe

Learning objective

  • Expansion of the principle of aromaticity to transition states
  • Topological method of Ewans, Dewar and Zimmermann
  • Examples for aromatic transition states

Important Keywords in this Learning Unit

aromaticity, transition state