Sunday, January 15

Notes on Pericyclic Reactions

Pericyclic reactions are concerted reactions involving cyclic flow of electrons through single transition states.
In organic chemistry, a pericyclic reaction is a type of organic reaction wherein the transition state of the molecule has a cyclic geometry, and the reaction progresses in a concerted fashion. Pericyclic reactions are usually rearrangement reactions.

They can be broadly classifies into:
  1. Sigmatropic
  2. Electrocyclic.
  3. Cycloaddition.
  4. Group Transfer


Topics Covered in these notes are:

  • Huckel Molecular Orbitals for linear pi system.
  • Correlation Diagrams
  • Woodward-Hoffmann Rules
  • Cycloadditions
  • Electrocyclic Reactions
  • Sigmatropic Rearrangements
  • FMO Methods & Dewar's Method
  • Wittig Rearrangements
  • Sommet-Hauser Rearrangements
  • Meisenheimer Rearrangement
  • Cope Rearrangements
  • Claisen Rearranagements
  • Ireland-Claisen Rearrangements
  • Johnson Orthoester Claisen
  • Eschenmoser-Claisen
  • Carrol Rearrangement
  • Ene Reactions
  • Conia Ene Reaction

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