Enantioselective Double Michael Addition/Cyclization with an Oxygen-Centered Nucleophile as the First Step in a Concise Synthesis of Natural (+)-Asteriscanolide
作者:Leo A. Paquette、Jinsung Tae、Mark P. Arrington、Aladin H. Sadoun
DOI:10.1021/ja994053w
日期:2000.3.1
The total synthesis of (+)-asteriscanolide (1) starting from 2-bromo-4,4-dimethylcyclopentenone has been accomplished. The synthetic route features two key steps. The first step is an unprecedented Michael−Michael reaction sequence that involves a heteronucleophile and proceeds with complete asymmetric induction. The two five-membered rings of the target molecule are thereby generated enantioselectively