作者:Zhang, Shiyun、Hu, Yue、Li, Meichao、Xie, Yinjun
DOI:10.1021/acs.orglett.4c02365
日期:——
approach for the synthesis of primary amines via reductive amination using H2 as a reductant and aqueous ammonia as a nitrogen source, catalyzed by amorphous Co particles. The highly active Co particles were prepared in situ by simply mixing commercially available CoCl2 and NaBH4/NaHBEt3 without any ligand or support. This reaction system features mild conditions (80 °C, 1–10 bar), high selectivity (99%)
在此,我们提出了通过还原胺化合成伯胺的最简单方法,使用H 2作为还原剂和氨水作为氮源,在无定形Co颗粒的催化下。通过简单地将市售CoCl 2和NaBH 4 /NaHBEt 3混合而原位制备高活性Co颗粒,无需任何配体或载体。该反应体系具有条件温和(80℃,1~10bar)、选择性高(99%)、底物范围广、操作简单、催化剂易于分离等特点。该反应在伯胺生产中的成功大规模应用表明了其潜在的工业利益。