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Erschienen in:
1992 | OriginalPaper | Buchkapitel
Degenerate Rearrangements
verfasst von : E. Amitai Halevi
Erschienen in: Orbital Symmetry and Reaction Mechanism
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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In their discussion of sigmatropic rearrangements, Woodward and Hoffmann state: “For the analysis of these reactions correlation diagrams are not relevant since it is only the transition state and not the reactants or products which may possess molecular symmetry elements.” [1, p. 114] This is something of an overstatement. For example, they could hardly have meant it to apply to 1,5-hexadiene, which is no less symmetrical than any transition state that can be assumed for its Cope rearrangement.