有机化学    

研究论文

3-氯-1,2-苯并异噻唑亲核开环合成2-氰基芳基硫醚与抑菌活性研究

刘一霖†,a, 马琪琛†,a, 朱鑫鑫a, 罗江浩a, 王方*,b, 李萌杨*,a, 林潇斌*,a,c   

  1. a西北农林科技大学化学与药学院 陕西杨凌 412100;
    b延安大学化学与化工学院 陕西延安 716000;
    c西北农林科技大学陕西省植物源农药研究与开发重点实验室 陕西杨凌 412100
  • 收稿日期:2026-06-19 修回日期:2026-07-28 发布日期:2026-09-11
  • 基金资助:
    “三秦英才引进计划”青年项目资助项目.

Nucleophilic Ring-Opening of 3-Chloro-1,2-benzisothiazoles to Synthesize 2-Cyanoaryl Sulfides and Antifungal Activity Studies

Liu Yilin†,a, Ma Qichen†,a, Zhu Xinxina, Luo Jianghaoa, Wang Fang*,b, Li Mengyang*,a, Lin Xiaobin*,a,c   

  1. aCollege of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100;
    bSchool of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000;
    cShaanxi Key Laboratory of Botanical Pesticide R & D, Institute of Pesticide Science, Northwest A&F University, Yangling, Shaanxi 712100
  • Received:2026-06-19 Revised:2026-07-28 Published:2026-09-11
  • About author:†The authors contributed equally to this work.
  • Supported by:
    The “Sanqin Yingcai” Introduction Program for Young Talents.

本研究建立了一种碱促进的3-氯-1,2-苯并异噻唑亲核开环反应合成2-氰基芳基硫醚的方法。该方法条件温和、操作简便,以碳酸铯为碱,无需金属催化剂,即可实现吲哚、2-萘酚和硝基甲烷三类亲核试剂对3-氯-1,2-苯并异噻唑的开环反应,以最高99%收率合成27例2-氰基芳基硫醚类化合物。部分所得化合物表现出较好的抑菌活性,其中化合物3d对植物病原菌B. cinerea(灰霉菌)具有优异的抑制效果(EC50 = 0.445 μg/mL),充分显示出该合成方法及相关产物良好的应用前景。

关键词: 碱促进亲核开环, 2-氰基芳基硫醚, 3-氯-1,2-苯并异噻唑, 抑菌活性

A base-promoted nucleophilic ring-opening reaction of 3-chloro-1,2-benzisothiazole for the synthesis of 2-cyanoaryl sulfides was developed. This method proceeds under mild conditions with operational simplicity. Using Cs2CO3 as the base and without the need for any metal catalyst, the ring-opening reactions of 3-chloro-1,2-benzisothiazole with three types of nucleophiles—namely indoles, 2-naphthols, and nitromethane—were achieved, affording 27 examples of 2-cyanoaryl sulfides in up to 99% yield. Some of the obtained compounds exhibited good antifungal activity; notably, compound 3d displayed excellent inhibitory activity against the phytopathogenic fungus Botrytis cinerea (B. cinerea), with an EC50 value of 0.445 μg/mL. These results fully demonstrate the promising application prospects of this synthetic method and the resulting products.

Key words: Base-promoted nucleophilic ring-opening, 2-Cyanoaryl sulfide, 3-Chloro-1,2-benzisothiazole, Antifungal activity