Claisen rearrangement

Definition

The Claisen rearrangement is a chemical reaction where an allyl vinyl ether is transformed into a γ,δ-unsaturated carbonyl compound through a [3,3]-sigmatropic shift. This reaction involves the movement of sigma bonds and the reorganization of electrons without the formation of free intermediates.

Related terms

Sigmatropic Rearrangement: A type of organic reaction involving the migration of σ-bonds along with π-bonds in a concerted mechanism.

Pericyclic Reaction: A class of reactions that proceed via a cyclic redistribution of bonding electrons through a concerted process without intermediates.

Allyl Vinyl Ether: A compound used as starting material in Claisen rearrangements, characterized by having an allyl group (a three-carbon chain with a double bond) attached to an ether linkage