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4-烷氧/苄氧基苯基四唑和1,3,4-噁二唑类化合物的合成及除草活性

王宝雷, 李正名, 李永红, 王素华   

  1. 南开大学元素有机化学研究所, 元素有机化学国家重点实验室, 天津 300071
  • 收稿日期:2007-04-16 修回日期:1900-01-01 出版日期:2008-01-10 发布日期:2008-01-10
  • 通讯作者: 李正名

Synthesis and Herbicidal Activities of 4-Alkoxy/benzyloxyphenyltetrazoles and 1,3,4-Oxadiazoles

WANG Bao-Lei, LI Zheng-Ming*, LI Yong-Hong, WANG Su-Hua   

  1. Elemento-Organic Chemistry Institute, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
  • Received:2007-04-16 Revised:1900-01-01 Online:2008-01-10 Published:2008-01-10
  • Contact: LI Zheng-Ming

摘要: 以4-氰基苯酚为起始原料, 在4-烷氧基/苄氧基苯甲脒结构基础上, 设计合成了5个4-烷氧基/苄氧基苯基四唑及17个新型2-取代-5-(4-烷氧基/苄氧基)苯基噁二唑类化合物, 通过元素分析、1H NMR和MS对所合成的新化合物进行了结构表征. 初步除草活性测试结果表明, 部分化合物对双子叶油菜和单子叶稗草表现出较好的生长抑制活性.

关键词: 四唑, 噁二唑, 除草活性

Abstract: Tetrazoles and 1,3,4-oxadiazoles are important heterocyclic compounds with a wide range of pharmaceutical and biological activity. Their syntheses and herbicidal activity have been of interest for a long time. In our previous research, a series of 4-alkoxy(benzyloxy)benzamidines were synthsized and showed a favourable herbicidal activity and KARI inhibitory activity. For searching potent herbicidal activity compounds, in this paper, five 4-alkoxy/benzyloxyphenyltetrazoles and seventeen new 2-substituted-5-(4-alkoxy/benzyloxy)phenyloxadiazoles were designed on the basis of the structure of 4-alkoxy(benzyloxy)benzamidine and synthesized via 4-cyanophenol as the starting material. All synthesized novel compounds were confirmed by elemental analysis, 1H NMR and MS. The preliminary herbicidal assay indicates that some of them displayed a good herbicidal activity on di-cotyledonous rape(Brassica campestris) and mono-cotyledonous barnygrass(Echinochloa crusgalli).

Key words: Tetrazole, Oxadiazole, Herbicidal activity

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