We herein report the synthetic efforts toward the tricyclic core of rhamnofolane-type diterpenoids, featuring a 5-exo/ring-expansion/6-exo radical cascade sequence. Furthermore, direct stereoselective editing of a sterically hindered allylic C–H bond enables the otherwise challenging conversion of cis-fused systems to their trans-fused analogs, providing a versatile platform for accessing this natural product family.
Z. Wang, Z. Zhang, X. Xie, S. Qin, S. Fu and B. Liu, Org. Chem. Front., 2026, Advance Article , DOI: 10.1039/D5QO01699A
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