共查询到20条相似文献,搜索用时 31 毫秒
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Duane R. Romer Brian L. Aldrich R. Garth Pews Richard W. Walter 《Pest management science》1995,43(4):263-266
A series of eleven 1,4-dithiino[2,3-b]quinoxaline-2,3-dicarbonitriles was prepared by reaction of 2,3-dichloroquinoxalines with disodium (2)-2,3-dimercapto-2-butenedinitrile in N,N-dimethylformamide. These products were tested for in-vitro fungicidal activity by a Minimum Inhibitory Concentration (MIC) method. Several of these compounds showed broad-spectrum fungicidal activity. The activity exhibited by these compounds was greatly dependent upon the substituents of the quinoxaline ring, with the nitro-substituted derivatives showing the highest levels of antifungal activity. None of the compounds prepared, however, showed fungicidal activity comparable to that of the commercial fungicides screened. 相似文献
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Lamberth C Cederbaum F Jeanguenat A Kempf HJ Zeller M Zeun R 《Pest management science》2006,62(5):446-451
Novel types of anti-oomycetic compounds have been designed and prepared. The synthetic approach to these mandelamides is outlined. Biological data demonstrate their high efficacy against important plant diseases such as tomato and potato late blight (Phytophthora infestans De Bary) and grape downy mildew (Plasmopara viticola Berliner & de Toni). Structure-activity relationship studies are discussed. The new development product mandipropamid is presented. 相似文献
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Novel analogues of mandipropamid have been designed and prepared. The synthetic approach to these stretched and heterocyclic mandelamides is outlined. Biological data demonstrate their high efficacy against important plant diseases like tomato and potato late blight (Phytophthora infestans De Bary) and grape downy mildew (Plasmopara viticola Berliner & de Toni). Structure-activity relationship studies are discussed. 相似文献
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Michael Elliott Andrew W. Farnham Norman F. Janes Bhupinder P. S. Khambay 《Pest management science》1982,13(4):407-414
Seventy-three α-substituted 3-phenoxybenzyl esters were synthesised, mostly using one of two general routes, based on the Grignard and related reactions. Esters with simpler (smaller and more polar) α-substituents were generally more insecticidally active; correlations based on substituent volume and substituent polarity parameters were about equally significant. 相似文献
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Christoph Lüthy Helmut Zondler Thomas Rapold Gottfried Seifert Bernhard Urwyler Thomas Heinis Hans Christian Steinrücken James Allen 《Pest management science》2001,57(3):205-224
A series of novel types of 7‐(4,6‐dimethoxypyrimidin‐2‐yl)oxy ‐ and ‐thio‐3‐methyl‐1 (3H)‐isobenzofuranones were discovered at Dr R Maag AG. From the thio‐isobenzofuranyl series, CGA 279 233—BSI‐proposed common name pyriftalid—was chosen for further development as a grass herbicide for use in rice. General synthetic approaches to these new phthalic acid‐derived compounds are given, with emphasis on the synthesis of pyriftalid and its physico‐chemical behaviour. © 2001 Society of Chemical Industry 相似文献
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通过取代苯异氰酸酯与1,2-苯并异噻唑啉-2(3H)-酮(BIT)反应,制备了13个2-(苯并异噻唑啉-3-酮-2-基)甲酰胺类化合物,其中9个未见文献报道。所有化合物的结构均经IR、1H NMR和元素分析确认。初步的抑菌活性测定结果表明,部分目标化合物对供试病原菌具有很好的抑菌活性,尤其对于枯草芽孢杆菌Bacillus subtilis和芒果蒂腐病菌Botryodiplodia theobromae,大部分化合物在50 mg/L下的抑制率在80%~100%之间。 相似文献
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