Chinese Journal of Organic Chemistry ›› 2025, Vol. 45 ›› Issue (7): 2552-2565.DOI: 10.6023/cjoc202410010 Previous Articles     Next Articles

ARTICLES

Brønsted碱促进的o-羟基席夫碱与乙烯基磺酰氟通过Michael-Mannich-SuFEx串联反应构建磺基色烯并[4,3‑b]吡咯烷化合物

张放a, 谢佩a, 张启超a, 武磊芳b,*(), 何林a, 杜广芬a,*()   

  1. a 石河子大学化学化工学院 化工绿色过程省部共建国家重点实验室培育基地 新疆石河子 832000
    b 石河子大学分析测试中心 新疆石河子 832000
  • 收稿日期:2024-11-27 修回日期:2024-12-11 发布日期:2025-01-17
  • 基金资助:
    新疆天山英才计划(2023TSYCCX0122); 石河子大学国际合作(GJHZ202204); 石河子大学引导(2022ZD021); 石河子大学引导(2022ZD067)

Brønsted Base-Catalyzed Assembly of Sulfochromeno[4,3-b]-pyrrolidines via Michael-Mannich-SuFEx Tandem Reaction of o-Hydroxy Schiff Bases and Vinylsulfonyl Fluorides

Fang Zhanga, Pei Xiea, Qichao Zhanga, Leifang Wub,*(), Lin Hea, Guangfen Dua,*()   

  1. a School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi, Xinjiang 832000
    b Analysis and Testing Center of Shihezi University, Shihezi, Xinjiang 832000
  • Received:2024-11-27 Revised:2024-12-11 Published:2025-01-17
  • Contact: *E-mail: duguangfen@shzu.edu.cn; 719591324@qq.com
  • Supported by:
    Tianshan Talent Research Project of Xinjiang(2023TSYCCX0122); International Cooperation Project of Shihezi University(GJHZ202204); Guidance Project of Shihezi University(2022ZD021); Guidance Project of Shihezi University(2022ZD067)

A method for the efficient synthesis of sulfochromeno[4,3-b]pyrrole compounds through the Michael-Mannich- SuFEx tandem reaction under mild conditions is introduced. Using o-hydroxy Schiff base and 2-substituted vinylsulfonyl fluoride as substrates, the yield was as high as 99%, the diastereoselectivity exceeded 95:5, and a total of 37 target compounds were synthesized. 19F NMR monitoring and density functional theory (DFT) studies showed that the reaction went through three stages of Michael-Mannich-SuFEx. Antibacterial tests show that some compounds have inhibitory effects on Cytospora chrysosperma.

Key words: SuFEx chemsitry, vinylsulfonyl fluoride, o-hydroxy Schiff base, sulfochromeno[4,3-b]pyrrolidines