作者:Enrique Alvarez-Manzaneda、Rachid Chahboun、Esteban Alvarez、Antonio Fernández、Ramón Alvarez-Manzaneda、Ali Haidour、Jose Miguel Ramos、Ali Akhaouzan
DOI:10.1039/c1cc14608d
日期:——
The first enantiospecific synthesis of akaol A, a marine sesquiterpene quinol, has been achieved. Key steps of the synthetic sequence are the oxidative degradation of (-)-sclareol to a dinorlabdane ketoester, mediated by the ozone-lead(IV) acetate system, the diastereoselective alpha-methylation of a ketoaldehyde, followed by an intramolecular aldol condensation and the further Diels-Alder cycloaddition
已经实现了第一级对映体合成的akaaka A,一种海洋倍半萜烯喹诺醇。合成序列的关键步骤是(-)-香紫苏醇被臭氧-乙酸铅(IV)系统介导氧化降解为二去甲丹烷酮酸酯,酮醛的非对映选择性α-甲基化,随后分子内羟醛缩合和二烯醇醚的进一步Diels-Alder环加成。