Synthesis of the tricyclic skeleton of aberrarone†
Abstract
A synthesis of the 6–5–5 tricyclic skeleton of the diterpenoid aberrarone is reported. The synthesis strategically features an intermolecular Diels–Alder reaction to construct the cis-hydrindane moiety and a cross-coupling–isomerization–intramolecular Alder–ene cyclization cascade to efficiently assemble the 6–5–5 tricyclic skeleton of aberrarone.