
Journal of the Chemical Society. Perkin transactions II p. 1011 - 1014 (1986)
Update date:2022-09-26
Topics:
Turecek, Frantisek
Havlas, Zdenek
The mechanism of the retro-Diels-Alder reaction of substituted bicyclo<2.2.1>hept-2-ene cation-radicals can be related to the energetics of the fragmentation.Concerted synchronous or asynchronous mechanisms are operative in reactions which occur at their thermochemical thresholds.The reverse process, the Diels-Alder reaction of a cation-radical with a molecule, has a negligible activation energy for symmetrical and slightly unsymmetrical systems, <(Z)-1,2-dihydroxyethene>+* + cyclopentadiene,
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