Intramolecular [4+2] cycloaddition of an indolenine
✍ Scribed by Josef Hájíček; Jan Trojánek
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- French
- Weight
- 212 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
An attempt to utilize a new strategy for alkaloid synthesis which features the intramolecular [4+2] cycloaddition of enamines and enamides for the construction of the tetracyclic spiroamine skeleton characteristic of the ~rythrina alkaloids was unsuccessful, unexpectedly giving a bridged cycloadduct
Cyclic 2-thiomethyl-5-amidofurans possessing tethered p-bonds were prepared by a dimethyl(methylthio) sulfonium tetrafluoroborate (DMTSF) induced cyclization of various amido dithioacetals. Upon heating, these systems undergo an intramolecular 4+2-cycloaddition reaction. The initially formed Diels-A