Enantioselective Synthesis of β‐Methyl Amines
<i>via</i>
Iridium‐Catalyzed Asymmetric Hydrogenation of
<i>N</i>
‐Sulfonyl Allyl Amines
作者:Albert Cabré、Xavier Verdaguer、Antoni Riera
DOI:10.1002/adsc.201900748
日期:2019.9.17
asymmetric hydrogenation of several N‐sulfonyl allyl amines is reported. All substrates can be easily obtained by the Ir‐catalyzed isomerization of N‐tosylaziridines reported previously. The commercially available threonine‐derived phosphinite (UbaPHOX) iridium complex has been found to be the best catalyst for this catalytic application, affording β‐methyl amines with good to excellent ee values (up
据报道,铱催化了一些N-磺酰基烯丙基胺的不对称加氢反应。通过先前报道的N-甲苯磺酰氮丙啶的Ir催化异构化可以轻松获得所有底物。已发现市售的苏氨酸衍生的次膦酸酯(UbaPHOX)铱络合物是该催化应用的最佳催化剂,可提供具有良好或优异ee值(高达94%)的β-甲胺。Lorcaserin和LY-404187的正式合成证明了这种新方法的合成潜力。