The Synthesis of Primary Amines through Reductive Amination Employing an Iron Catalyst
作者:Christoph Bäumler、Christof Bauer、Rhett Kempe
DOI:10.1002/cssc.202000856
日期:2020.6.19
The reductive amination of ketones and aldehydes by ammonia is a highly attractive method for the synthesis of primary amines. The use of catalysts, especially reusable catalysts, based on earth‐abundant metals is similarly appealing. Here, the iron‐catalyzed synthesis of primary amines through reductive amination was realized. A broad scope and a very good tolerance of functional groups were observed
氨将酮和醛还原胺化是合成伯胺的极具吸引力的方法。同样,使用基于富含地球的金属的催化剂,尤其是可重复使用的催化剂也具有吸引力。在此,通过还原胺化实现了铁催化的伯胺合成。观察到广泛的范围和对官能团的很好的耐受性。酮,包括纯脂肪族的酮,芳基-烷基,二烷基和杂环,以及醛,可以平稳地转化为其相应的伯胺。此外,还演示了胺化药物,生物活性化合物和天然产物。可以容忍许多官能团,例如羟基,甲氧基,二恶唑,磺酰基和硼酸酯取代基。催化剂易于操作,选择性,可重复利用,氨水可作为氮源。关键是使用特定的Fe络合物进行催化剂合成,并使用N掺杂SiC材料作为催化剂载体。