Syntheses of the Hexahydroindene Cores of Indanomycin and Stawamycin by Combinations of Iridium-Catalyzed Asymmetric Allylic Alkylations and Intramolecular Diels-Alder Reactions
Short and concise syntheses of the hexahydroindene cores of the antibiotics indanomycin (X‐14547 A) and stawamycin are presented. Key methods used are an asymmetric iridium‐catalyzed allylic alkylation, a modified Julia olefination, a Suzuki–Miyaura coupling, and an intramolecular Diels–Alder reaction.