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Nature of the transition state in some Diels-Alder reactions

✍ Scribed by Dewar, Michael J. S.; Pyron, R. Scott.

Book ID
126394023
Publisher
American Chemical Society
Year
1970
Tongue
English
Weight
749 KB
Volume
92
Category
Article
ISSN
0002-7863

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Endo and exo transition states in the Di
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We have recently determined kinetic parameters for the unimolecular Diels-Alder retrogressions of exe and w-dicyclopentadiene to monomer (1). The activation enthalpies and entropies are aH f (E) 37.4 2 0.3 kcal/mole, hSS (E) + 1.1 2 0.6 e.u., hH + (&) 33.0 2 0.5 kcal/mole, and hSS (endo) \_ -1.9 +