Synthesis and herbicidal activity of N,N-diethyl-3-(arylselenonyl)-1H-1,2,4-triazole-1-carboxamide |
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Authors: | Ma Yanming Liu Runhui Gong Xiuying Li Zhong Huang Qingchun Wang Haishui Song Gonghua |
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Institution: | Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, PO Box 544, Shanghai 200237, People's Republic of China. |
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Abstract: | Based on the carbamoyl triazole herbicide Cafenstrole, 12 novel selenium-containing compounds were designed and synthesized. All of the compounds were characterized and confirmed by IR, 1H NMR, and high-resolution mass spectroscopy. The bioassay tests showed that some of the compounds (C2, C4, C(7-8), and C12) exhibited good inhibitory activity against cucumber (Cucumis sativus L.) and semen euphorbiae (Leptochloa chinensis N.). Especially, compound C6 inhibited the growth of cucumber and semen euphorbiae by >90% at a concentration of 1.875 microg/mL, and the inhibition of the compound on the rice (Oryza sativa L.) was only 8.3% at a concentration of 7.5 microg/mL, which indicated a higher selectivity between weed and rice than that shown by Cafenstrole. |
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