高等学校化学学报 ›› 2016, Vol. 37 ›› Issue (3): 486.doi: 10.7503/cjcu20150729

• 有机化学 • 上一篇    下一篇

含有双氰基环丙烷甲酰胺类化合物的合成及生物活性

徐高飞, 刘艳红, 杨新玲, 王道全, 袁德凯()   

  1. 中国农业大学理学院应用化学系, 北京 100193
  • 收稿日期:2015-09-17 出版日期:2016-03-10 发布日期:2016-01-24
  • 基金资助:
    国家自然科学基金(批准号: 20902107)资助

Synthesis and Biological Activity of Novel Dicyano-containning Cyclopropane-1-carboxamides

XU Gaofei, LIU Yanhong, YANG Xinling, WANG Daoquan, YUAN Dekai*()   

  1. Department of Applied Chemistry, Science College, China Agricultural University, Beijing 100193, China
  • Received:2015-09-17 Online:2016-03-10 Published:2016-01-24
  • Contact: YUAN Dekai E-mail:yuandekai@aliyun.com
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.20902107)

摘要:

以含氰基及环丙烷的酰胺类杀菌剂为先导, 设计合成了结构全新的双氰基环丙烷甲酰胺类化合物. 通过Strecker反应获得中间体2-氨基-2-(取代)苯基乙(丙)腈(1a~1n), 以氰乙酸乙酯和1,2-二溴乙烷环经环化、 水解得到1-氰基环丙烷-1-甲酸(3), 由化合物3和1经缩合反应得到目标化合物4a~4n, 其结构均经NMR和HRMS表征. 生物活性测试结果表明, 在离体条件下, 50 μg/mL的化合物4f对瓜果腐霉和稻瘟菌的抑制活性分别为55.3%和67.1%; 盆栽实验中, 400 μg/mL的化合物4f对黄瓜霜霉病和小麦白粉病的抑制活性分别为50%和85%, 化合物4m对玉米锈病的抑制活性达100%; 5 μg/mL的化合物4c, 4d, 4g, 4j和4m对蚊幼虫的致死率均>60%, 600 μg/mL的化合物 4h和4j对粘虫的致死率分别为66.7%和50%.

关键词: 双氰基环丙烷甲酰胺, Strecker反应, 缩合, 生物活性

Abstract:

A series of novel dicyano-contained cyclopropanecarboxamide derivatives were designed and synthesized using fungicides containing cyano or cyclopropyl as leading structures. Intermediates 2-amino-2-(substituted) phenylacetonitriles or propionitriles 1a—1n were prepared via Strecker reaction. 1-Cyano-cyclopro-pyl-1-carboxylic(3) was obtained from ethyl cyanacetate and 1,2-dibrimoethane via cyclization and hydrolysis. 14 title compounds were obtained via the condensation of intermediates 1 and 3. The structures of all title compounds were confirmed by 1H NMR and HRMS. Compound 4f showed good fungicidal activity against Pythium aphanidermatum and Pyricularia oryzae with inhibiton rates of 55.3% and 67.1% at 50 μg/mL in vitro and against Pseudoperonospora cubensis and Erysiphe graminis with inhibiton rates of 50% and 85% at 400 μg/mL in vivo. Compound 4m could give total control against Puccinia sorghi at 400 μg/mL in vivo. In addition, compounds 4c, 4d, 4g, 4j and 4m showed good larvicidal activity against mosquitoes(Culex pipiens pallens) at 5 μg/mL with the lethal rate above 60%; compounds 4h and 4j possessed larvicidal activity against armyworms(Mythimna separata) at 600 μg/mL with the lethal rate of 66.7% and 50%.

Key words: Dicyano-containning cyclopropane-1-carboxamide, Strecker reaction, Condensation, Biological activity

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