Synthesis and fungicidal activity against Rhizoctonia solani of 2-alkyl (alkylthio)-5-pyrazolyl-1,3,4-oxadiazoles (thiadiazoles)

被引：247

作者：

Chen, HS ^{[1
]}

Li, ZM ^{[1
]}

Han, YF ^{[1
]}

机构：

[1] Nankai Univ, Inst Elementoorgan Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2000年 / 48卷 / 11期

关键词：

pyrazolyl-1,3,4-oxadiazole; pyrazolyl-1,3,4-thiadiazole; fungicide; rice sheath blight; Rhizoctonia solani;

D O I：

10.1021/jf991065s

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Some series of 2-alkyl (alkythio)-5-((4-chloro)-3-ethyl-1-methyl-1H-pyrazole-5-yl)-1,3,4-oxadiazoles (thiadiazoles) were prepared as potential fungicides. Their fungicidal activity was evaluated against rice sheath blight, which is a major disease of rice in China. Structure-activity relationships for the screened compounds were evaluated and discussed. It was found that 5-(4-chloro-3-ethyl-1-methyl-1H-pyrazole-5-yl)-1,3,4-thiadiazole-2-thione has the higher fungicidal activity.

引用

页码：5312 / 5315

页数：4