Free radical annulation of cyclopentane ring
✍ Scribed by Živorad Čeković; Radomir Saičić
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- French
- Weight
- 231 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
A general procedure for cyclopentane synthesis based on free-radical cyclization of thioacetals is described. This permits the rapid assembly, by intramolecular annulation, of various ring systems bearing useful functionality for use in total synthesis.
tation in 3 (AAG' > 6 kcal/mol). 8n-"Antiaromaticity" in the cycloheptatrienide ion, on the other hand, cannot be of much significance energetically, since the difference in barriers for 1 and 2 is only 3.5 kcal/mol. According to the Xray structure analysis, 1 . 2 T H F has a "pentadienide ion" stru