Organocatalytic Atroposelective Construction of Axially Chiral <i>N</i>-Aryl Benzimidazoles Involving Carbon–Carbon Bond Cleavage
作者:Ningning Man、Zhenbang Lou、Yuming Li、Haijun Yang、Yufen Zhao、Hua Fu
DOI:10.1021/acs.orglett.0c02214
日期:2020.8.21
Axially chiral compounds widely occur in natural products, biologically active molecules, ligands, and catalysts, and their efficient and enantioselective synthesis is highly desirable. Herein, we report a novel method for the atroposelective construction of axially chiral N-aryl benzimidazoles with chiral phosphoric acid as the organocatalyst via reaction of N1-(aryl)benzene-1,2-diamines with multicarbonyl
轴向手性化合物广泛存在于天然产物,生物活性分子,配体和催化剂中,非常需要它们的有效和对映选择性合成。在这里,我们报告了一种新型的轴向手性N-芳基苯并咪唑与手性磷酸作为有机催化剂通过N 1-(芳基苯-1,2-二胺与多羰基化合物反应)的对映选择性构建的新方法。本方法以高收率(高达89%)提供了优异的对映选择性(高达98%ee)的目标产物。