In the Diels Alder reactron the adduct with the endo conflguratlon ~3, m general, 2) much preferred over the adduct having the exo conflguratlon. wooaward
Diels-Alder reaction volumes in the solid state and solution
โ Scribed by V. D. Kiselev; G. G. Iskhakova; E. A. Kashaeva; L. N. Potapova; A. I. Konovalov
- Publisher
- Springer
- Year
- 2004
- Tongue
- English
- Weight
- 247 KB
- Volume
- 53
- Category
- Article
- ISSN
- 1573-9171
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๐ SIMILAR VOLUMES
The Diels-Alder adducts of C60 with 9-methylanthracene were obtained selectively through photoinduced electron transfer process in solid state as an environmentally benign process in solvent-free system.
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 +
## Diels-Alder reactions show high endo/exo selectivities in aqueous suspensions. We have described 1 the very large rate accelerations which occur when some common Diels-Alder reactions are performed in water solution. The principal effect was ascribed to hydrophobic association of the diene wit