Thiadiazole-containing oxadiazole compound as well as preparation method and application thereof
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A technology containing oxadiazoles and thiadiazoles, which is applied in the field of oxadiazoles
Inactive Publication Date: 2014-07-02
YANCHENG INST OF TECH
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[0003] However, there is no synthesis of 2-(4-methyl-1,2,3-thiadiazol-5-yl)-5-(substituted alky
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[0030] Yield 88%, melting point 63-64°C; 1 H NMR (CDCl 3 , 400MHz), δ: 3.06(s, 3H, Het-Me), 4.53(s, 2H, SCH 2 ), 7.04(t, J=7.46Hz, 1H, ArH), 7.19(d, J=9.27Hz, 1H, ArH), 7.29-7.35(m, 2H, ArH). MS (ESI), m / z: 309(M+1).
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Abstract
The invention discloses a thiadiazole-containing oxadiazole compound shown in a formula (I), a preparation method of the compound and application of the compound to control of barnyard grass and rape. The compound is a novel compound with herbicidal activity, and provides a foundation for research and development of novel pesticides.
Description
(1) Technical field [0001] The invention relates to a thiadiazole-containing oxadiazole compound, namely 2-(4-methyl-1,2,3-thiadiazol-5-yl)-5-(substituted alkylthio)-1, 3,4-oxadiazole derivatives and their preparation and application. (2) Background technology [0002] Heterocyclic compounds have become the mainstream in the development of new pesticides, and in heterocyclic compounds, nitrogen-containing heterocycles are the main ones. 1,3,4-Oxadiazole compounds also have very important biological activities, including anti-inflammatory, anti-cancer, anti-viral, antibacterial and herbicidal activities. For example, the synthetic 2-substituted pyrazole-5-methylthio-1,3,4-oxadiazole exhibits good inhibitory activity against rice sheath blight at 100 mg / L; 2-methyl-5- Substituted benzylthio-1,3,4-oxadiazoles had better inhibitory effect on rapeseed at 100ppm. [0003] However, there is no synthesis of 2-(4-methyl-1,2,3-thiadiazol-5-yl)-5-(substituted alkylthio)-1,3,4-oxadia...
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