Base-Catalyzed Diels−Alder Reactions of 2<i>H</i>-Pyran-2,5-diones: A Mild Approach to Basiliolide B
作者:Xiongfei Zhou、Wanqing Wu、Xiaozu Liu、Chi-Sing Lee
DOI:10.1021/ol8022787
日期:2008.12.18
A new class of base-catalyzed Diels-Alder reactions of 2H-pyran-2,5-diones has been developed using catalytic amount of dicyclohexylmethylamine in tert-butyl alcohol. This method has been successfully employed for construction of the tricyclic core of basiliolide B at room temperature with good yields and exclusive endo selectivity.