科研之友
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摘要
Seven 7-hydroxycoumarin (C) acylation derivatives (C1-C7) were synthesized to determine the differences in antifeedant effects between these derivatives and tutin against Mythimna separata. The structural assignments of these semisynthetic compounds were examined based on their IR, ESIMS, and H-1- and C-13-NMR spectral data. Compounds C2-C7, tutin, andrographolide and azadirachtin showed different antifeedant activities. Compared with tutin and andrographolide, the derivatives C3, C4, C5 and C7 presented greater antifeedant activities. It was concluded that the optimal insecticidal agent is C4 (7-methanesulfonyloxycoumarin).
- 出版日期2012
- 单位西北农林科技大学
