Prediction of suitable catalyst by 1H NMR: asymmetric synthesis of multisubstituted biaryls by chiral phosphoric acid catalyzed asymmetric bromination
作者:Keiji Mori、Yuki Ichikawa、Manato Kobayashi、Yukihiro Shibata、Masahiro Yamanaka、Takahiko Akiyama
DOI:10.1039/c3sc52142g
日期:——
We describe herein the “1H NMR-assisted catalyst screening method,” which enables us to find the suitable catalyst easily and predict enantioselectivity with the same accuracy as the computational method. Based on this method, we constructed multisubstituted biaryls that occur frequently in many biologically active compounds, chiral ligands, and organocatalysts, with excellent enantioselectivities via chiral phosphoric acid-catalyzed asymmetric bromination.
我们在此介绍 "1H NMR 辅助催化剂筛选方法",该方法使我们能够轻松找到合适的催化剂,并以与计算方法相同的精度预测对映体选择性。基于这种方法,我们通过手性磷酸催化的不对称溴化反应,构建了在许多生物活性化合物、手性配体和有机催化剂中经常出现的多取代双芳基,并获得了优异的对映选择性。