作者:Zhang, Mangang、Li, Hui、Wu, Keqin、Rong, Nianxin、Lin, Shaoquan、Yang, Hua、Yin, Qin
DOI:10.1002/cjoc.202400338
日期:——
offers a direct route to access synthetically valuable α-chiral primary amines, asymmetric transfer hydrogenation of NH imines has been rarely studied, due in large part to the inaccessibility and instability of NH imines. Herein, we report a Rh-catalyzed asymmetric transfer hydrogenation of a kind of novel and stable NH imines which are prepared via condensation of easily available sulfonylated 2’-aminoacetophenones
尽管它提供了获得具有合成价值的α-手性伯胺的直接途径,但NH亚胺的不对称转移氢化却很少被研究,这在很大程度上是由于NH亚胺的不可获取性和不稳定性。在此,我们报道了一种新型稳定的NH亚胺的Rh催化不对称转移氢化反应,该亚胺是通过容易获得的磺酰化2'-氨基苯乙酮与NH 3在甲醇中缩合制备的。通过该方法,合成了对映体富集的手性2-(1-氨基烷基)苯胺,这是一种特殊的药效基团,具有良好的官能团相容性,ee高达99%。使用0.2 mol%催化剂的克级反应已成功进行,凸显了实用性。此外,该产品可以衍生成对映体纯生物活性分子以及用于金属催化的手性三齿配体。