Concise Synthesis of Pyrrolidine and Indolizidine Alkaloids by a Highly Convergent Three‐Component Reaction
作者:Guillaume Lapointe、Kurt Schenk、Philippe Renaud
DOI:10.1002/chem.201003137
日期:2011.3.7
The synthesis of pyrrolidine and indolizidine derivatives through radical carboazidation of alkenes with α‐iodoketones, followed by reductive amination, is described. When properly substituted, further lactamization afforded pyrrolizidinones in good yield. This carboazidation/reductive amination sequence was efficiently applied to the total synthesis of three different simple alkaloids, including (±)‐monomorine
描述了通过烯烃与α-碘酮的自由基碳叠氮化反应,然后进行还原胺化反应,合成吡咯烷和吲哚并咪唑衍生物的方法。当适当地被取代时,进一步的内酰胺化以良好的产率提供了吡咯烷二酮。该碳叠氮化/还原胺化序列被有效地应用于包括(±)-monomorine I在内的三种不同简单生物碱的全合成。