Chinese Journal of Organic Chemistry ›› 2025, Vol. 45 ›› Issue (4): 1369-1378.DOI: 10.6023/cjoc202406026 Previous Articles     Next Articles

ARTICLES

β-二羰基化合物与靛红衍生的α,β-不饱和酮之间的Michael加成/半缩酮化串联反应构建3,4'-吡喃-螺环氧化吲哚类化合物

张明美, 沙风, 伍新燕*()   

  1. 华东理工大学化学与分子工程学院 结构可控先进功能材料及其制备教育部重点实验室 上海 200237
  • 收稿日期:2024-06-20 修回日期:2024-09-15 发布日期:2024-10-10
  • 基金资助:
    海拙道投资管理有限公司资助项目

Michael Addition/Hemiketalization Cascade Reaction Between β-Dicarbonyl Compounds and Isatin-Derived α,β-Unsaturated Ketones to Construct 3,4'-Pyran-spirooxindoles

Mingmei Zhang, Feng Sha, Xin-Yan Wu()   

  1. Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237
  • Received:2024-06-20 Revised:2024-09-15 Published:2024-10-10
  • Contact: * E-mail: xinyanwu@ecust.edu.cn
  • Supported by:
    Shanghai Zhuodao Investment Management Co., Ltd.

3,4'-Pyran-spirooxindole is a structural unit existing in many natural products and bioactive synthetic compounds. The synthesis of multifunctionalized 3,4'-pyran-spirooxindole derivatives has rarely been reported. Herein a Michael addition/hemiketalization cascade reaction between β-dicarbonyl compounds and isatin-derived α,β-unsaturated ketones catalyzed by 4-dimethylaminopyridine (DMAP) is presented. A variety of multifunctionalized 3,4'-pyran-spirooxindoles were obtained in high yields (up to 99%) with excellent diastereoselectivities (dr>20∶1) under mild conditions. This methodology provides a simple and convenient method for the syntheses of multifunctionalized 3,4'-pyran-spirooxindoles.

Key words: cascade reaction, catalysis, Michael addition, pyran, spirooxindole