有机化学 ›› 2015, Vol. 35 ›› Issue (1): 159-166.DOI: 10.6023/cjoc201408006 上一篇    下一篇

研究论文

N-(2-氟-4-氯-5-取代苯基)异吲哚-1,3-二酮衍生物的合成及除草活性

张浩a, 李奇博a, 刘克昌a, 刘瑞全a, 李青阳a, 汪清民b, 刘尚钟a   

  1. a 中国农业大学理学院应用化学系 北京 100193;
    b 南开大学元素有机化学国家重点实验室 天津 300071
  • 收稿日期:2014-05-12 修回日期:2014-08-01 发布日期:2014-09-16
  • 通讯作者: 汪清民, 刘尚钟 E-mail:chemlab.lnnu@163.com
  • 基金资助:

    辽宁省自然科学基金(No. 20102126)资助项目.

Synthesis and Herbicidal Activity of N-(4-Chloro-2-fluoro-5- substituted phenyl)isoindole-1,3-dione Derivatives

Zhang Haoa, Li Qiboa, Liu Kechanga, Liu Ruiquana, Li Qingyanga, Wang Qingminb, Liu Shangzhonga   

  1. a Department of Applied chemistry, College of Science, China Agricultural University, Beijing 100193;
    b State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071
  • Received:2014-05-12 Revised:2014-08-01 Published:2014-09-16
  • Supported by:

    Project supported by the Natural Science Foundation of Liaoning Province (No. 20102126).

为了发现新的农药先导化合物, 以氯酰亚酞和苯氧羧酸酯结构为基础, 通过活性亚结构拼接方法, 设计合成了一系列新型的N-(2-氟-4氯-5-取代苯基)异吲哚-1,3-二酮衍生物6a6f7a7k. 目标化合物以2-氯-4-氟-5-硝基苯酚为原料, 经4步反应制得, 其结构经过1H NMR, 13C NMR, HRMS确证. 初步生物活性测试结果表明, 大部分化合物在1500 g/ha剂量下, 对双子叶杂草苘麻、反枝苋具有优异的芽前芽后除草活性. 进一步活性筛选发现, 化合物6d在750g/ha剂量下对苘麻、反枝苋具有100%抑制活性,化合物7a, 7i在22.5 g/ha剂量下对苘麻的芽后抑制率大于80%, 远高于对照药剂三氟羧草醚.

关键词: 原卟啉原氧化酶抑制剂, N-苯基异吲哚-1,3-二酮, 苯氧羧酸酯, 除草活性

In order to find new herbicidal leading compounds, a series of N-(4-chloro-2-fluoro-5-substituted phenyl)-isoindole-1,3-dione derivatives (6a6f, 7a7k) were designed and synthesized via the strategy of linking active sub-structures which are chlorophthalim and phenoxy carboxylic ester. The target compounds were synthesized from starting material 2-chloro-4-fluoro-5-nitrophenol in four steps, and their structures were confirmed by 1H NMR, 13C NMR and HRMS. The preliminary bioassay results indicated that most compounds exhibited excellent herbicidal activities at 1500 g/ha in both pre- and post-emergence treatments against Abutilon theophrasti and Amaranthus retroflexus. On the basis of advanced screening tests, compound 6d exhibited 100% inhibitory effect against Abutilon theophrasti and Amaranthus retroflexus at 750 g/ha, compounds 7a and 7i were much more effective against Abutilon theophrasti than commercial acifluorfen with 80%~86% inhibitory activity at 22.5 g/ha.

Key words: protoporphyrinogen oxidase inhibitor, N-phenyl isoindole-1,3-dione, phenoxy carboxylic ester, herbicidal activity