有机化学 ›› 2026, Vol. 46 ›› Issue (9): 3594-3602.DOI: 10.6023/cjoc202607015 上一篇    下一篇

研究论文

锆路易斯酸催化的环状β-二羰基化合物的de Mayo型扩环反应

王钧锋a, 刘芮碹a, 米学玲a,*(), 罗三中b   

  1. a 北京师范大学化学学院 北京 100875
    b 清华大学化学系 基础分子科学中心 北京 100084
  • 收稿日期:2026-07-15 修回日期:2026-07-31 发布日期:2026-08-21
  • 基金资助:
    国家自然科学基金(22393891); 及国家重点研发计划(2023YFA1506401); 及国家重点研发计划(2023YFA1506402)

Zirconium Lewis Acid-Catalyzed de Mayo-Type Ring Expansion of Cyclic β-Dicarbonyls

Junfeng Wanga, Ruixuan Liua, Xueling Mia,*(), Sanzhong Luob   

  1. a College of Chemistry, Beijing Normal University, Beijing 100875
    b Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084
  • Received:2026-07-15 Revised:2026-07-31 Published:2026-08-21
  • Contact:
  • About author:

    Dedicated to the 100th anniversary of the birth of Professor Xikui Jiang.

  • Supported by:
    National Natural Science Foundation of China(22393891); National Key R&D Program of China(2023YFA1506401); National Key R&D Program of China(2023YFA1506402)

报道了锆路易斯酸催化的de Mayo型扩环反应. 反应仅使用低价易得的氯化锆作为催化剂, 无需使用任何外部光敏剂和添加剂. 反应通过环状β-二羰基化合物与烯烃之间的自由基环加成和逆羟醛串联过程进行, 不仅可在室温条件下高效进行, 而且具有良好的底物适用性. 该策略旨在通过易得的起始原料, 合成一系列官能团化的中环骨架.

关键词: de Mayo反应, 扩环反应, 锆路易斯酸催化, β-二羰基化合物

Zirconium-Lewis acid was developed to facilitate a de Mayo-type ring expansion reaction in the absence of external photosensitizers and additives. The reaction proceeds through a [2+2] cycloaddition and retro-aldol reaction sequence between cyclic β-ketocarbonyls and alkenes, which are compatible with various substrates in good yields. Through this strategy, a series of functionalized medium sized-ring skeletons can be constructed starting from readily available starting materials.

Key words: de Mayo reaction, ring expansion, zirconium Lewis acid-catalysis, β-ketocarbonyls