Enantioselective Modular Synthesis of Cyclohexenones: Total Syntheses of (+)-Crypto- and (+)-Infectocaryone
作者:Géraldine Franck、Kerstin Brödner、Günter Helmchen
DOI:10.1021/ol101588j
日期:2010.9.3
A modular synthesis of cyclohexenones is described and applied to the first enantioselective total syntheses of (+)-crypto- and (+)-infectocaryone. Key steps in the synthesis of cyclohexenones are an iridium-catalyzed allylic alkylation, nucleophilic allylation, and ring-closing metathesis. On the way to (+)-cryptocaryone, a catch and release strategy involving an iodolactonization/elimination and
描述了环己烯酮的模块化合成,并将其应用于(+)-密码-和(+)-感染三烯酮的第一对映选择性总合成。合成环己酮的关键步骤是铱催化的烯丙基烷基化,亲核烯丙基化和闭环易位。在通往(+)-隐香酮的途中,采用了一种捕获和释放策略,该策略涉及碘内酯化/消除和区域选择性C-酰化。