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Intramolecular [4+2] Cycloaddition Reactions of Conjugated Enynes

✍ Scribed by Danheiser, Rick L.; Gould, Alexandra E.; de la Pradilla, Roberto Fernandez; Helgason, Anna L.

Book ID: 120308792
Publisher: American Chemical Society
Year: 1994
Tongue: English
Weight: 252 KB
Volume: 59
Category: Article
ISSN: 0022-3263
DOI: 10.1021/jo00098a002

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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