有机化学 ›› 2021, Vol. 41 ›› Issue (11): 4391-4399.DOI: 10.6023/cjoc202106010 上一篇    下一篇

所属专题: 热点论文虚拟合集

研究论文

三氟甲磺酸钪催化嘌呤与邻羟基苄醇反应构建非环核苷

夏超a, 王东超b, 郭海明a,b,*()   

  1. a 河南师范大学环境学院 河南新乡 453007
    b 河南师范大学化学化工学院 绿色化学介质与反应教育部重点实验室 精细化学品绿色制造河南省协同创新中心河南省有机功能分子与药物创新重点实验室 河南新乡 453007
  • 收稿日期:2021-06-05 修回日期:2021-07-16 发布日期:2021-08-17
  • 通讯作者: 郭海明
  • 基金资助:
    国家自然科学基金(22071046); 中原学者(212101510004); 中央引导地方科技发展专项资金(YDZX20204100001786)

Sc(OTf)3-Catalyzed Reaction of Purines with o-Hydroxybenzyl Alcohols for Construction of Acyclic Nucleosides

Chao Xiaa, Dongchao Wangb, Haiming Guoa,b()   

  1. a School of Environment, Henan Normal University, Xinxiang, Henan 453007
    b Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007
  • Received:2021-06-05 Revised:2021-07-16 Published:2021-08-17
  • Contact: Haiming Guo
  • Supported by:
    National Natural Science Foundation of China(22071046); Zhongyuan Scholar(212101510004); National Government Guides Local Special Funds for the Development of Science and Technology(YDZX20204100001786)

通过三氟甲磺酸钪催化, 在温和条件下实现了邻羟基苄醇与嘌呤的烷基化反应. 该C—N键形成的过程可能是通过邻亚甲基苯醌中间体进行的. 以优秀的产率(最高可达96%)高效地合成了一系列非环核苷类似物, 底物范围广. 反应规模放大后, 产率保持不变.

关键词: 嘌呤非环核苷, 邻亚甲基苯醌, 钪催化, 烷基化反应

Efficient alkylation of purines with ortho-hydroxybenzyl alcohols under mild condition has been achieved by Sc(OTf)3 catalysis. This C—N bond formation process is proposed to proceed through an ortho-quinone methide intermediate. The reaction allows for efficient synthesis of various acyclic nucleoside analogs, with excellent yields of up to 96%, across a broad range of substrates and the yields were maintained as the reactions were scaled up.

Key words: purine acyclic nucleosides, ortho-quinone methide, scandium catalysis, alkylation reaction