有机化学 ›› 2025, Vol. 45 ›› Issue (8): 2932-2937.DOI: 10.6023/cjoc202501009 上一篇    下一篇

研究论文

Brønsted酸催化烯丙醇的伯胺化反应

王小燕, 徐长明*()   

  1. 兰州交通大学化学化工学院 兰州 730070
  • 收稿日期:2025-01-13 修回日期:2025-03-04 发布日期:2025-03-31
  • 基金资助:
    国家自然科学基金(22061025); 甘肃省自然科学基金(20JR10RA220); 兰州交通大学“百人计划”资助项目.

Brønsted Acid-Catalyzed Primary Amination of Allylic Alcohols

Xiaoyan Wang, Changming Xu*()   

  1. School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou 730070
  • Received:2025-01-13 Revised:2025-03-04 Published:2025-03-31
  • Contact: *E-mail:xucm@mial.lzjtu.cn
  • Supported by:
    National Natural Science Foundation of China(22061025); Natural Science Foundation of Gansu Province(20JR10RA220); Foundation of a Hundred Youth Talents Training Program of Lanzhou Jiaotong University.

探索了Brønsted酸催化的烯丙醇与氨基磺酸(NH3SO3)在室温下的伯胺化反应, 以高达97%的产率得到烯丙基伯胺. 反应可能的机理为烯丙醇经Brønsted酸质子化后脱水, 形成烯丙基碳正离子, 再与原位生成的氨气反应获得烯丙基伯胺. 该方法为合成克级规模烯丙基伯胺类化合物提供了一种温和、无过渡金属参与且对环境友好的新方法.

关键词: 烯丙醇, 氨基磺酸, 伯胺化, Brønsted酸

A Brønsted acid-catalyzed primary amination reaction of allylic alcohols with sulfamic acid (NH3SO3) is described, giving primary allylic amines with up to 97% yield. The possible reaction mechanism was that allylic alcohol was protonated by Brønsted acid, followed by dehydration led to the formation of allylic carbocation, which reacted with ammonia gas generated in situ to obtain primary allylic amine. This method provides a new approach for synthesizing gram-scale primary allylic amines under mild, transition metal-free and environmentally friendly conditions.

Key words: allylic alcohols, sulfamic acid, primary amination, Brønsted acid