Synthesis of E-beta-farnesene analogues containing five-membered azaheterocycles and their biological activity
文献类型: 外文期刊
第一作者: Ling Yun
作者: Ling Yun;Yang Xin-Ling;Chen Fu-Heng;Rui Chang-Hui;Fan Xian-Lin
作者机构:
关键词: azaheterocycle;EBF analogue;synthesis;biological activity
期刊名称:CHINESE JOURNAL OF ORGANIC CHEMISTRY ( 影响因子:1.652; 五年影响因子:1.2 )
ISSN: 0253-2786
年卷期: 2008 年 28 卷 4 期
页码:
收录情况: SCI
摘要: In order to find novel leading compounds used to control aphids, eight E-beta-farnesene (EBF) analogues were synthesized from the skeletal structure of EBF, the main component of aphid alarm pheromones, where the conjugate double bond was superseded by nitrogen heterocyclic compounds such as N-nitroimidazolidin-2-imine, thiazolidine-2-thione, oxazolidin-2-one, etc. The structures of all the target compounds were confirmed by (1)H NMR, IR spectra and elemental analysis, and the different reaction and biological activities of these compounds were also discussed. The results of biological tests indicated that most compounds showed insecticidal activity against Lipaphis erysimi, especially the inhibition rate of 4e was higher than that of thiacloprid at testing five concentrations. The interesting phenomenon is that at a lower concentration (e.g. 62.5 mu g/mL), the inhibition rate of most compounds is better than that of thiacloprid despite that they are worse than thiacloprid at 1000 mu g/mL.
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