引用本文:
丁宇, 杨光富. B环取代的新型黄烷酮衍生物的合成及杀菌活性[J]. 应用化学,
2001, 18(10): 785-789.
Citation: DING Yu, YANG Guang-Fu. Syntheses and Fugicidal Activity of Flavanone Derivatives with Substitution in B Cycle[J]. Chinese Journal of Applied Chemistry, 2001, 18(10): 785-789.
Citation: DING Yu, YANG Guang-Fu. Syntheses and Fugicidal Activity of Flavanone Derivatives with Substitution in B Cycle[J]. Chinese Journal of Applied Chemistry, 2001, 18(10): 785-789.
B环取代的新型黄烷酮衍生物的合成及杀菌活性
English
Syntheses and Fugicidal Activity of Flavanone Derivatives with Substitution in B Cycle
Abstract:
In order to study the relationship between the fungicidal activity and the substituents on B cycle of flavanone derivatives, a series of flavanone derivatives containing various subtituents on B cycle were designed and synthesized starting from 2-hydroxylacetophenone. The structures of all compounds synthesized were confirmed by spectroscopic methods and microanalyses. Preliminary bioassays indicated that some compounds e.g. 3b, 3e, 3h and 3j showed excellent fungicidal activities against Rhizoctonia solani, Fusarium oxysporum, Physalospora piricola, Fusarium gramineum and Cercospora beticola at the dosage of 50 μg/L. Preliminary structure-activity relationship analysis indicated that the hydrophobicity and electronic effect of the substituents on B cycle have important effect on the fungicidal activity.
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Key words:
- flavanone
- / phytoalexins
- / synthesis
- / fungicidal activity
- / structure activity relation
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