A novel biomimetic synthesis of (S)-(−)-zearalenone: via macrocyclization and transannular aromatization
作者:Hideki Miyatake-Ondozabal、Anthony G.M. Barrett
DOI:10.1016/j.tet.2010.05.084
日期:2010.8
efficiently trapped intramolecularly by a secondary alcohol to provide a macrocyclic triketo-lactone. Following ketal hydrolysis, transannular aromatization gave the resorcylate natural product, (S)-(−)-zearalenone.
加热时,羟基-酮-二恶英经历了逆Diels-Alder断裂,所得的α,γ-二酮-烯酮被仲醇有效地分子内捕获,从而提供了大环的三酮-内酯。缩酮水解后,环过芳香化生成了间苯二酚天然产物(S)-(-)-玉米赤霉烯酮。