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Design, Synthesis and QSAR of Novel 4-(3-trifluoro methylphenyl)-6-methyl-2-arylpyridazin-3(2H)-ones
zhu you-quan 1 * #,hu xu hong 2,zhang jin 2,yuan yan-wei 2,xu han 2,zou xiao-mao 2,hu fang-zhong 2,yang hua-zheng 2
1.State Key Laboratory of Elemento-organic Chemistry, Institute of Elemento-organic Chemistry,Nankai University
2.tate Key Laboratory of Elemento-organic Chemistry, Institute of Elemento-organic Chemistry,Nankai University
*Correspondence author
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Funding: 国家自然科学基金,教育部博士点基金(No.20772066,20070055040)
Opened online:29 December 2009
Accepted by: none
Citation: zhu you-quan,hu xu hong,zhang jin.Design, Synthesis and QSAR of Novel 4-(3-trifluoro methylphenyl)-6-methyl-2-arylpyridazin-3(2H)-ones[OL]. [29 December 2009] http://en.paper.edu.cn/en_releasepaper/content/38239
 
 
A series of novel 4-(3-trifluoromethylphenyl)-6-methyl-2-arylpyridazin-3(2H)-ones derivatives were designed, synthesized and evaluated for their bioactivities. Some of them provided > 80 % inhibition of chlorophyll of Spirodela polyrrhiza at 10 μg/ml and and exhibited good herbicidal activities against Digitaria Adscendens at pre-emergence treatment at a dosage of 150 g/ha. Quantitative structure–activity relationship studies were performed on these compounds using physicochemical parameters (electronic, steric) as independent and chlorophyll inhibiting activity as dependent parameter, where chlorophyll inhibiting activity correlated best (r>0.8) with steric(Es ), indicator(HM), van der Waals volume (VN), electronic parameter(σm, σp) in this set of molecules.
Keywords:trifluoromethylphenyl;pyridazinone;quantitative structure-activity relationship (QSAR);inhibition of chlorophyll
 
 
 

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