应用化学 ›› 2011, Vol. 28 ›› Issue (10): 1173-1178.DOI: 10.3724/SP.J.1095.2011.00633

• 研究论文 • 上一篇    下一篇

N-[2-(4,6-二甲氧基嘧啶-2-氧基)苯亚甲基]-2-芳氧乙酰腙的合成与除草活性

宋红1,2,毛会玉1,2,石德清1*   

  1. (1.农药与化学生物学教育部重点实验室,华中师范大学化学学院 武汉 430079;
    2.武汉生物工程学院 阳逻)
  • 收稿日期:2010-10-25 修回日期:2011-01-06 出版日期:2011-10-10 发布日期:2011-10-10
  • 通讯作者: 石德清,教授; Tel:027-67867958; Fax:027-67862041; E-mail:chshidq@mail.ccnu.edu.cn; 研究方向:杂环与杂原子化学、农药化学
  • 基金资助:
    国家自然科学基金(20872046)和湖北省自然科学基金(2008CDB086)资助项目

Synthesis and Herbicidal Activity of N-[2-(4,6-dimethoxypyrimidin-2-yloxy)benzylidene]-2-aryloxyacetohydrazides

SONG Hong1,2, MAO Huiyu1,2, SHI Deqing1*   

  1. (1.Key Laboratory of Pesticide and Chemical Biology of Ministry of Education,
    College of Chemistry,Central China Normal University,Wuhan 430079;
    2.Wuhan Bioengineering Institute,Yangluo District,Wuhan)
  • Received:2010-10-25 Revised:2011-01-06 Published:2011-10-10 Online:2011-10-10

摘要:

通过2-(4,6-二甲氧基嘧啶-2-氧基)苯甲醛(1)与芳氧乙酰肼2的缩合反应,合成了10个含嘧啶结构的芳氧乙酰腙化合物3,其结构经1H NMR、IR、EI-MS或ESI-MS和元素分析测试技术确证。 除草活性测试(活体盆栽)结果表明,大部分目标化合物在1.5 kg/hm2浓度下, 无论苗前或苗后处理对苋菜均显示出很强抑制活性,化合物3e和3h的抑制率分别为100%和97.7%,而化合物3a、3b、3d、3e、3f和3h苗后处理对苋菜的抑制率均超过97%,对马唐的除草活性最差。 苯环4-位取代基性质对除草活性有规律性影响。

关键词: 嘧啶水杨酸, 芳氧乙酰肼, 除草活性

Abstract:

A series of novel N-[2-(4,6-dimethoxypyrimidin-2-yloxy)benzylidene]-2-aryloxyacetohydrazides 3 was synthesized by the condensation reactions of 2-(4,6-dimethoxypyrimidin-2-yloxy)benzaldehyde 1 with various 2-aryloxyacetohydrazides 2. Their structures were characterized by IR, 1H NMR, EI-MS, ESI-MS and elemental analysis. The results of bioassay(in vivo) indicated that most of the title compounds 3 possessed good herbicidal activities against Amaranthus retroflexus in both pre-emergence and post-emergence treatments at the dose of 1.5 kg/hm2.

Key words: Pyrimidinyl carboxylic acid, 2-aryloxyacetohydrazide, herbicidal activity

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