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Citation: LIU Xin-Hua, ZHU Jing, PAN Chun-Xiu, SONG Bao-An. Synthesis and Fungicidal Activity of Novel 5-Arylpyrazole Derivatives[J]. Chinese Journal of Applied Chemistry, ;2007, 24(10): 1162-1166. shu

Synthesis and Fungicidal Activity of Novel 5-Arylpyrazole Derivatives

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a College of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002;
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b MOE Key Laboratory of Green Pesticide and Agriculture Bioengineering, Guiyang

Corresponding author: LIU Xin-Hua,
Received Date: 8 November 2006
Available Online: 21 May 2007
Fund Project: 安徽省高等学校自然科学基金资助项目(2006KJ104B) (2006KJ104B)

4-(2-Chlorophenyl)but-3-en-2-one was prepared Via the condensation of 2-chlorobenzaldehyde and acetone followed by cyclization with hydrazine monohydrate. Eighteen new 5-(2-hydroxyphenyl)-3-methyl(or ethyl)-4,5-dihydro-N-acylpyrazole derivatives were synthesized and characterized by elemental analysis, IR and ¹H NMR. The experimental results show the inhibition rate of compound 3ae against P.oryzae was up to 60.2%, the inhibition rate of compound 3bf against S.Sclerotiorum was up to 56.7%. Conpounds 3aj and 3bj exhibited certain fungicidal activity against H.Oryzae, P.oryza, S.Sclerotiorum, with inhibition rate of up to 50%.
- arylpyrazole,
- synthesis,
- fungicide
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