Reductive Molybdenum-Catalyzed Direct Amination of Boronic Acids with Nitro Compounds
作者:Samuel Suárez-Pantiga、Raquel Hernández-Ruiz、Cintia Virumbrales、María R. Pedrosa、Roberto Sanz
DOI:10.1002/anie.201812806
日期:2019.2.11
The synthesis of aromatic amines is of utmost importance in a wide range of chemical contexts. We report a direct amination of boronic acids with nitro compounds to yield (hetero)aryl amines. The novel combination of a dioxomolybdenum(VI) catalyst and triphenylphosphine as inexpensive reductant has revealed to be decisive to achieve this new C−N coupling. Our methodology has proven to be scalable,
在广泛的化学领域中,芳族胺的合成至关重要。我们报道了硼酸与硝基化合物的直接胺化反应,生成(杂)芳基胺。二氧钼(VI)催化剂和三苯膦作为廉价的还原剂的新颖组合已显示出实现这种新的C-N偶联的决定性作用。我们的方法论已被证明是可扩展的,耐空气和湿气的,高度化学选择性的,并且可以同时结合脂肪族和芳香族硝基化合物。此外,这种芳香族仲胺的一般且分步经济的合成方法可耐受芳基卤化物和羰基化合物,因此与其他芳香族胺合成物具有正交性。