The direct reductive N-arylation of nitromethane by organophosphorus-catalyzed reductive C-N coupling with arylboronic acid derivatives is reported. This method operates by the action of a small ring organophosphorus-based catalyst (1,2,2,3,4,4-hexamethylphosphetane P-oxide) together with a mild terminal reductant hydrosilane to drive the selective 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.

中文翻译：

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P(III)/P(V)-催化芳基硼酸和酯的甲基胺化：还原性 C-N 偶联硝基甲烷作为甲基胺替代物

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。