P(III)/P(V)-Catalyzed Methylamination of Arylboronic Acids and Esters: Reductive C–N Coupling with Nitromethane as a Methylamine Surrogate
作者:Gen Li、Ziyang Qin、Alexander T. Radosevich
DOI:10.1021/jacs.0c08035
日期:2020.9.23
installation of the methylamino group to (hetero)aromatic boronic acids and esters. This method also provides for a unified synthetic approach to isotopically-labeled N-methylanilines from various stable isotopologues of nitromethane (i.e. CD3NO2, CH315NO2 and 13CH3NO2), revealing this easy-to-handle compound as an versatile precursor for the direct installation of the methylamino group.
报道了通过有机磷催化的 CN 与芳基硼酸衍生物偶联直接还原 N-芳基化硝基甲烷。该方法通过小环有机磷基催化剂(1,2,2,3,4,4-六甲基磷烷 P-氧化物)和温和的末端还原剂氢硅烷的作用来驱动甲氨基的选择性安装,以(杂)芳族硼酸和酯。该方法还为从硝基甲烷的各种稳定同位素体(即 CD3NO2、CH315NO2 和 13CH3NO2)中同位素标记的 N-甲基苯胺提供了一种统一的合成方法,揭示了这种易于处理的化合物是直接安装甲基氨基的通用前体团体。