Claisen rearrangement
| 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. 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).
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