有机化学 ›› 2006, Vol. 26 ›› Issue (01): 110-115. 上一篇    下一篇

研究简报

(αE,E)-α-(甲氧亚氨基)-2-[1-(芳香醛酮肟氧基)甲基]苯乙酸甲酯的立体选择性合成及生物活性研究

李焰*,1,2,张洪权1,周叶兵1,刘杰1,陈祖兴1,刘钊杰2   

  1. (1湖北大学化学与材料科学学院 武汉 430062)
    (2华中师范大学国家教育部农药化学重点实验室 武汉 430079)
  • 收稿日期:2005-03-24 修回日期:2005-07-12 发布日期:2005-12-31
  • 通讯作者: 李焰

Stereoselective Synthesis and Biological Properties of (αE,E)-α-Me- th-oxymino-2-[(1-arylalkylidene)aminooxymethyl]-benzeneacetates

LI Yan*,1,2,ZHANG Hong-Quan1,ZHOU Ye-Bing1,LIU Jie1
CHEN Zu-Xin1,LIU Zhao-Jie2   

  1. (1 Faculty of Chemistry and Material Science, Hubei University, Wuhan 430062)
    (2 Key Laboratory of Pesticide and Chemical Biology of the Ministry of Education of China,
    Central China Normal University, Wuhan 430079)
  • Received:2005-03-24 Revised:2005-07-12 Published:2005-12-31
  • Contact: LI Yan

使用邻甲苯基重氮盐与乙醛酸甲酯肟偶联反应高立体选择性合成出 (E)-2-(羟基亚氨基)-2-邻甲基苯乙酸甲酯,经硫酸二甲酯的甲基化反应可得到重要的中间体(E)-2-(甲氧亚氨基)-2-邻甲基苯乙酸甲酯, 再经NBS溴化后与 (E)-芳香醛酮肟进行醚化反应最终得到目标物(αE,E)-α-(甲氧亚氨基)-2-[1-(芳香醛酮肟氧基)甲基]苯乙酸甲酯, 这些化合物多数具有很好的广谱杀菌活性.

关键词: (E)-2-(甲氧亚氨基)-2-苯乙酸甲酯, 杀菌剂, 立体选择性偶联反应, strobilurin

In this paper, E-toluene-2-α-hydroxyiminoacetate was stereoselectively obtained by the coupling reaction of toluene-2-diazonium chloride with methyl glyoxylate oxime ester in the presence of CuSO4/Na2SO3, and then methylated with dimethyl sulfate using sodium hydride as base to yield the key intermediate methyl E-2-methoxyimino-2-o-tolylacetate. The intermediate was brominated by NBS and then eth-erified with E-aryloxime to afford (αE,E)-α-methoxyimino-2-[(1-arylalkylidene)aminooxymethyl]-benze- neacetates. Most of the compounds all possess high activities against a wide variety of fungi.

Key words: fungicide, stereoselective coupling reaction, strobilurin, E-2-methoxyimino-2-o-tolylacetate