Cascade Polyketide and Polyene Cyclizations: Biomimetic Total Synthesis of Hongoquercin B
2014
Barrett, Tim N. | Barrett, Anthony G. M.
The total synthesis of hongoquercin B was carried out in 9 steps from trans,trans-farnesyl acetate using a palladium catalyzed decarboxylative π-farnesyl rearrangement of a diketo-dioxinone ester, aromatization and cationic diene-epoxide cyclization as key steps. This cascade tetracyclization simplifies the synthesis of terpenoid resorcylate natural products.
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