Internal amide-triggered cycloaromatization of maduropeptin-like nine-membered enediyne
Literature Information
Yutaro Norizuki, Kazuo Komano, Itaru Sato, Masahiro Hirama
In the Masamune–Bergman cyclization of a nine-membered non-conjugated enediyne with an internal, maduropeptin-like nucleophile, the exocyclic alkene migrated to form the nine-membered conjugated enediyne, triggered by the intramolecular addition of the amide group; final aromatized products showed up to 85% yield.
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