有机化学 ›› 2024, Vol. 44 ›› Issue (9): 2796-2809.DOI: 10.6023/cjoc202403039 上一篇    下一篇

研究论文

溶剂控制三氟甲烷磺酸钪催化2-(杂)芳基-N-磺酰基吖丁啶开环反应: 烯丙胺/1,3-噁嗪衍生物的合成

朱洁a, 汤思丹a, 阚秀妹a, 凡士柱a, 王鹏飞a, 杨培俊a,b,*()   

  1. a 安徽工程大学化学与环境工程学院 功能配合物材料化学与应用安徽省重点实验室 安徽芜湖 241000
    b 安徽师范大学化学与材料科学学院 分子基材料省级实验室 安徽芜湖 241002
  • 收稿日期:2024-03-26 修回日期:2024-05-14 发布日期:2024-05-30
  • 通讯作者: 杨培俊
  • 基金资助:
    国家自然科学基金(22001007); 安徽工程大学科研基金(2020YQQ025); 安徽省重点分子基材料省级实验室开放基金(fzj22012)

Solvent-Controlled Sc(OTf)3-Catalyzed Ring Opening Reaction of 2-(Hetero)aryl-N-sulfonylazetidines: Synthesis of Allylic Amines/1,3-Oxazinane Derivatives

Jie Zhua, Sidan Tanga, Xiumei Kana, Shizhu Fana, Pengfei Wanga, Peijun Yanga,b()   

  1. a Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000
    b Anhui Laboratory of Molecular-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002
  • Received:2024-03-26 Revised:2024-05-14 Published:2024-05-30
  • Contact: Peijun Yang
  • Supported by:
    National Natural Science Foundation of China(22001007); Anhui Engineering University Scientific Research Foundation(2020YQQ025); Anhui Laboratory Molecular-Based Materials Open Fund(fzj22012)

烯丙胺和1,3-噁嗪烷是有机合成和医药工业中有重要价值的分子骨架. 报道了一种通过溶剂控制稀土金属路易斯酸催化2-(杂)芳基-N-磺酰基吖丁啶与醛环加成合成1,3-噁嗪烷以及自身开环异构化合成烯丙胺. 这两种反应具有底物适用范围广、催化剂用量低、反应条件温和、产率高和区域选择性好等特点, 并通过将产物三步转化为萘替酚、阿拉明和阿拉明SG证明了其实用价值.

关键词: 稀土金属路易斯酸, 溶剂控制, 吖丁啶, 区域选择性, 开环反应

Allylic amines and 1,3-oxazinanes are valuable molecular skeletons in organic synthesis and pharmaceutical industry. A straightforward way to such two types of compounds by solvent-controlled rare-earth metal Lewis acid-catalyzed transformations of 2-(hetero)aryl-N-sulfonylazetidines: the ring-opening isomerization of azetidines to allylic amines and the annulation of azetidines with aldehydes to 1,3-oxazinanes are reported. These two reactions feature scalability, low catalyst loading, mild reaction conditions, excellent yields and regioselectivity with demonstrated utility in three-step product transformations to naftifine, abamine and abamine SG.

Key words: rare-earth metal Lewis acid, solvent control, azetidine, regioselectivity, ring opening reaction