Design, synthesis, biological activity and density function theory study of pyrazole derivatives containing 1,3,4-thiadiazole moiety
Xiaoming Ding , Zhiwen Zhai , Luping Lv , Zhaohui Sun , Xinghai Liu
Front. Chem. Sci. Eng. ›› 2017, Vol. 11 ›› Issue (3) : 379 -386.
Design, synthesis, biological activity and density function theory study of pyrazole derivatives containing 1,3,4-thiadiazole moiety
A variety of pyrazole derivatives containing 1,3,4-thiadiazole moiety were synthesized under microwave irradiation, and their structures were confirmed by 1H NMR and HRMS. They were evaluated for herbicidal and antifungal activities, and the results indicated that two compounds with a phenyl group (6a) and 4-tert-butylphenyl group (6n) possess good herbicidal activity for dicotyledon Brassica campestris and Raphanus sativus with the inhibition of 90% for root and 80%–90% for stalk at 100 ppm respectively. The structure-activity relationship of compounds 6a and 6n was also studied by density function theory method.
pyrazole / 1,3,4-thiadiazole / antifungal activity / herbicidal activity / density function theory
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Higher Education Press and Springer-Verlag Berlin Heidelberg
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