AbstractApplication of bioisostere plays an important role in drug discovery. α‐Aminoboronic acid is the familiar bioisostere of α‐amino acid. Developing reactions for the synthesis of a wide variety of α‐aminoboronic acid is one important task for synthetic chemistry. Herein, we report the development of nucleophilic C‐borylation chemistry for N‐arylimines catalyzed by nickel. The reaction proceeds through the insertion of a borylnickel species into the C=N bond to afford the corresponding α‐aminoboronate, which was isolated as acetamide after trapping with acetic anhydride. N‐Benzyl imine is also tolerated by the developed reaction.
摘要 生物异构体的应用在药物发现中发挥着重要作用。α-氨基硼酸是人们熟悉的α-氨基酸的生物异构体。开发合成各种α-氨基硼酸的反应是合成化学的一项重要任务。在此,我们报告了在镍催化下开发 N-芳基亚胺的亲核 C-Borylation 化学反应。反应通过硼镍物种插入 C=N 键进行,得到相应的 α-氨基硼酸酯,用乙酸酐捕集后分离出乙酰胺。N-Benzyl imine 也可以通过所开发的反应进行处理。