Biomimetic spirocyclisation using novel intramolecular radical oxygenation; a model for the biosynthesis of the interiorin lignans
Abstract
Novel intramolecular radical spirocyclisation reactions in aromatic nuclei, 22→23 and 30→31, are presented, which mimic a key step in the proposed biosynthesis of the interiorins 1–4 and kadsulignans 5, 6.