## Abstract For Abstract see ChemInform Abstract in Full Text.
Mechanism leading to the observed product of intramolecular aryl Diels–Alder reaction
✍ Scribed by Samuel Chackalamannil; Darı́o Doller; Keith Eagen
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- French
- Weight
- 75 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
A mechanistic investigation into the recently reported intramolecular aryl Diels-Alder reaction was carried out using deuterium labeling. These studies led to the conclusion that the initial Diels-Alder adduct is isomerized to a highly conjugated tetra-ene intermediate which undergoes a stereospecific suprafacial 1,5-dienyl hydrogen shift to give the observed product.
📜 SIMILAR VOLUMES
Tricyclic compounds 4a and 4b possessing a bicyclo[4.3.0] moiety, were successfully synthesized by using the intramolecular Diels -Alder reaction. The siloxy-rather than acyloxy-substituents increased the ratio of the endo-cylcoadducts 10 and 12. The oxygen substitution of 9 influenced conformation
5-Carboxy apoyohimbine ring systems have been prepared via intramolecular Diels-Alder reactions of systems that incorporate electron-deficient dienes and acylamide dienophiles. These mismatched systems cyclise efficiently with exo stereoselectivity.