Palladium-Catalyzed Alkene Carboamination Reactions of Electron-Poor Nitrogen Nucleophiles
作者:Luke J. Peterson、John P. Wolfe
DOI:10.1002/adsc.201500334
日期:2015.7.6
Modified reaction conditions that facilitate Pd‐catalyzed alkene carboamination reactions of electron‐deficient nitrogen nucleophiles are reported. Pent‐4‐enylamine derivatives bearing N‐tosyl or N‐trifluoroacetyl groups are coupled with aryl triflates to afford substituted pyrrolidines in good yield. These reactions proceed via a mechanism involving anti‐aminopalladation of the alkene, which differs
报道了促进缺电子氮亲核试剂的钯催化烯烃碳胺化反应的改进反应条件。带有N-甲苯磺酰基或N-三氟乙酰基的戊-4-烯胺衍生物与三氟甲磺酸芳基酯偶联,以良好的产率提供取代的吡咯烷。这些反应通过涉及烯烃的反氨基钯化的机制进行,这与之前报道的N-芳基胺和N -Boc-戊烯胺的类似反应不同。还描述了这些条件在 (±)-aphanorphine 的正式合成中的应用。