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Chemistry LibreTexts

Cope Rearrangement

The Cope rearrangement, not to be confused with the Cope elimination, is the conversion of a 1,5-diene to a more stable, constitutionally isomeric 1,5-diene at a very high temperature, eg:

Mechanism

The Cope rearrangement is a pericyclic reaction

see also Claisen rearrangement