有机化学 ›› 2023, Vol. 43 ›› Issue (7): 2462-2475.DOI: 10.6023/cjoc202301008 上一篇    下一篇

研究论文

新型嘧啶并[5,4-e][1,2,4]三唑并[1,5-c]嘧啶衍生物的合成与除草活性

林海a, 聂会祥a, 赵安林a, 王涛a,*(), 罗劲b,*()   

  1. a江西师范大学化学化工学院 江西省化学生物学重点实验室 南昌 330022
    b江西师范大学分析测试中心 南昌 330022
  • 收稿日期:2023-01-08 修回日期:2023-03-01 发布日期:2023-03-30
  • 通讯作者: 王涛, 罗劲
  • 基金资助:
    国家自然科学基金(21562026); 国家自然科学基金(21762025); 江西师范大学青年英才资助项目.

Synthesis and Herbicidal Activity of Novel Pyrimido[5,4-e]-[1,2,4]triazolo[1,5-c]pyrimidine Derivatives

Hai Lina, Huixiang Niea, Anlin Zhaoa, Tao Wanga(), Jin Luob()   

  1. aJiangxi Province Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022
    bAnalytical and Testing Center, Jiangxi Normal University, Nanchang 330022
  • Received:2023-01-08 Revised:2023-03-01 Published:2023-03-30
  • Contact: Tao Wang, Jin Luo
  • Supported by:
    National Natural Science Foundation of China(21562026); National Natural Science Foundation of China(21762025); Young Talents Program of Jiangxi Normal University.

为了寻找结构新颖且具有优异除草活性的含氮稠杂环化合物, 以2-烷硫基-5-氰基-6-硫甲基嘧啶-4-胺为原料合成了42个新型的嘧啶并[5,4-e][1,2,4]三唑并[1,5-c]嘧啶衍生物消旋体(Ι-1~Ι-42), 其结构经熔点、1H NMR、13C NMR、红外吸收光谱法(IR)和高分辨质谱(HRMS)确证. 初步的除草活性测试表明, 在浓度为100 mg/L时, 大部分化合物对单子叶植物(小麦、稗草和高粱)和双子叶植物(萝卜、油菜和黄瓜)表现出显著的除草活性, 特别是化合物Ι-13, Ι-14, Ι-23, Ι-25Ι-30~Ι-42对6种供试植物的根和茎长抑制率都达到了100%.

关键词: 嘧啶并[5,4-e][1,2,4]三唑并[1,5-c]嘧啶, 合成, 除草活性

To discover N-containing fused heterocyclic compounds with novel structure and excellent herbicidal activity, forty-two pyrimido[5,4-e][1,2,4]triazolo[1,5-c]pyrimidine derivatives (Ι-1~Ι-42) were synthesied using 2-(alkylthio)-5- carbonitrile-6-(methylthio)pyrimidine-4-aminos as starting materials. Their structures were clearly confirmed by melting point, 1H NMR, 13C NMR, infrared absorption spectroscopy (IR), and high-resolution mass spectra (HRMS). The preliminary bioassay indicated that many target compounds exhibited remarkable herbicidal activities against the monocotyledons (Triticum aestivum L., Echinochloa crusgalli, and Sorghum bicolor) and dicotyledons (Raphanus sativus, Brassica campestris, and Cucumis sativus) at the concentration of 100 mg/L. Especially, compounds Ι-13, Ι-14, Ι-23, Ι-25 and Ι-30~Ι-42 showed excellent herbicidal activities against the roots and stalks of the six test plant at 100 mg/L with 100% inhibition rates.

Key words: pyrimido[5,4-e][1,2,4]triazolo[1,5-c]pyrimidine, synthesis, herbicidal activity