有机化学 ›› 2022, Vol. 42 ›› Issue (1): 242-248.DOI: 10.6023/cjoc202106023 上一篇    下一篇

研究论文

铑催化定位基促进芳环C—H键和碳酸亚乙烯酯的缩合得到异香豆素

王璐a, 邵莺a, 陈帆b, 钱鹏程b,*(), 成江a,b,*()   

  1. a 常州大学石油化工学院 江苏常州 213164
    b 温州大学化学与材料工程学院 浙江温州 325035
  • 收稿日期:2021-06-10 修回日期:2021-07-14 发布日期:2021-09-02
  • 通讯作者: 钱鹏程, 成江
  • 基金资助:
    国家自然科学基金(21971025); 先进催化与绿色制造协同创新中心资助项目; 江苏省先进催化材料与技术重点实验室(BM2012110); 温州市科技局基金(W20170003)

Rhodium-Catalyzed Directing Group-Assisted Annulation of Arene C—H Bond with Vinylene Carbonate toward Isocoumarins

Lu Wanga, Ying Shaoa, Fan Chenb, Pengcheng Qianb(), Jiang Chenga,b()   

  1. a School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164
    b College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035
  • Received:2021-06-10 Revised:2021-07-14 Published:2021-09-02
  • Contact: Pengcheng Qian, Jiang Cheng
  • Supported by:
    National Natural Science Foundation of China(21971025); Advanced Catalysis and Green Manufacturing Collaborative Innovation Center; “Innovation & Entrepreneurship Talents” Introduction Plan of Jiangsu Province, the Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology(BM2012110); Foundation of Wenzhou Science & Technology Bureau(W20170003)

异香豆素是一种重要的药物分子, 目前已经开发了许多合成途径, 主要集中在苯甲酸或其他物质与炔烃的环化.亚磺酰基苯甲酰胺在螯合辅助的芳烃邻位C—H官能化中可以轻松地制备, 碳酸亚乙烯酯可以建立无氧化剂的催化体系, 使碳酸作为唯一的副产物. 在铑催化剂的存在下, 亚磺酰基苯甲酰胺和碳酸亚乙烯酯之间形成了环化, 通过导向基团辅助的邻位C—H偶联和分子内醇解, 以中等至良好的产率获得未取代的异香豆素.

关键词: 铑, 亚磺酰基苯甲酰胺, 碳酸亚乙烯酯

Isocoumarins are an important pharmaceutical compounds. Many synthetic pathways have been developed, mainly focusing on the cyclization of benzoic acid or other with alkynes. Sulfinylidene benzamides were facilely prepared and developed in the chelation-assisted arene ortho-C—H functionalization, and vinylene carbonate can establish an oxidant-free catalytic system, giving carbonic acid as a sole side product. In the presence of rhodium catalyst, an annulation between sulfinylidene benzamides and vinylene carbonate was developed, proceeding with directing group-assisted ortho-C—H coupling and intramolecular alcoholysis toward nonsubstituted isocoumarins in moderate to good yields.

Key words: rhodium, sulfinylidene benzamides, vinylene carbonate