Claisen rearrangement | |
---|---|
Named after | Rainer Ludwig Claisen |
Reaction type | Rearrangement reaction |
Identifiers | |
Organic Chemistry Portal | claisen-rearrangement |
RSC ontology ID | RXNO:0000148 |
The Claisen rearrangement is a powerful carbon–carbon bond-forming chemical reaction discovered by Rainer Ludwig Claisen.[1] The heating of an allyl vinyl ether will initiate a [3,3]-sigmatropic rearrangement to give a γ,δ-unsaturated carbonyl, driven by exergonically favored carbonyl CO bond formation (Δ(ΔfH) = −327 kcal/mol (−1,370 kJ/mol).[2][3][4][5]
Claisen
was invoked but never defined (see the help page).