有机化学 ›› 2017, Vol. 37 ›› Issue (3): 630-635.DOI: 10.6023/cjoc201610028 上一篇    下一篇

研究论文

钯催化咖啡因C-H键直接烷氧基羰基化反应生成8-酯基咖啡因衍生物

苏吕a, 肖含兵a, 苑雨萌a, 张晓凤a, 林深a, 黄秋锋a,b   

  1. a 福建师范大学化学与化工学院 福州 350007;
    b 福建省高分子材料重点实验室 福州 350007
  • 收稿日期:2016-10-17 修回日期:2016-12-08 发布日期:2016-12-12
  • 通讯作者: 黄秋锋,E-mail:qiufenghuang@fjnu.edu.cn E-mail:qiufenghuang@fjnu.edu.cn
  • 基金资助:

    国家自然科学基金(Nos.2110322,6152010615)和福建省教育厅K类基金(No.JK2014010)资助项目.

Palladium-Catalyzed C-H Alkoxycarbonylation of Caffeines: Synthesis of 8-Ester-substituted Caffeines

Su Lüa, Xiao Hanbinga, Yuan Yumenga, Zhang Xiaofenga, Lin Shena, Huang Qiufenga,b   

  1. a College of Chemistry & Chemical Engineering, Fujian Normal University, Fuzhou 350007;
    b Fujian Key Laboratory of Polymer Materials, Fuzhou 350007
  • Received:2016-10-17 Revised:2016-12-08 Published:2016-12-12
  • Contact: 10.6023/cjoc201610028 E-mail:qiufenghuang@fjnu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 2110322, 6152010615) and the Foundation of Fujian Educational Committee (No. JK2014010).

咖啡因羰基衍生物在药物活性及生物荧光方面表现优异性能,其简便合成方法备受关注.从咖啡因C-H键直接出发,研究了过渡金属钯配合物催化咖啡因C-H键与醇的氧化羰基化反应.以PdCl2(PPh32为催化剂,以醋酸铜为氧化剂的反应体系下,不同咖啡因衍生物与不同醇均能进行氧化羰基化反应,得到了一系列8-酯基咖啡因衍生物.反应所用CO为一个大气压,操作简便,溴、烯烃和苯环等官能团都与体系有很好的兼容性.

关键词: 钯, C-H键活化, 羰基化, 咖啡因, 一氧化碳

Carbonyl-substituted caffeine derivatives have attracted much attention due to their potent pharmaceutical activity and interesting fluorescent properties. An efficient synthesis of 8-ester-substituted caffeines through palladium-catalyzed C-H alkoxycarbonylation was developed. The reaction was carried out in the presence of PdCl2(PPh3)2 and Cu(OAc)2 under 101 kPa CO atmosphere in 1,4-dioxane, providing diversified 8-ester-substituted caffeines in reasonable to good yields. The approach was characterized by using atmospheric pressure of carbon monoxide and broad functional group tolerance.

Key words: palladium, C-H bond acitivation, carbonylation, caffeine, carbon monoxide