Efficient Entry to the Pyrroloquinoline Core of<i>Martinella</i>Alkaloids via Novel Base-catalyzed Mukaiyama–Mannich Reaction
作者:Shuhei Ikeda、Masatoshi Shibuya、Naoki Kanoh、Yoshiharu Iwabuchi
DOI:10.1246/cl.2008.962
日期:2008.9.5
An efficient enantiocontrolled entry to Martinella alkaloids was achieved based on the unexpected discovery that a catalytic amount of KH/dicyclohexyl-18-crown-6 induced an intramolecular Mukaiyama-Mannich reaction of imine 3, leading to a cascade sequence involving a novel silyl group migration to furnish the pyrroloquinoline core 6.
基于意外发现,催化量的 KH/dicyclohexyl-18-crown-6 诱导亚胺 3 的分子内 Mukaiyama-Mannich 反应,导致涉及新的甲硅烷基迁移的级联序列,实现了对 Martinella 生物碱的有效对映控制提供吡咯并喹啉核心 6.