名称:
Synthesis and Herbicidal Activity of N,N-Diethyl-3-(arylselenonyl)-1H-1,2,4-triazole-1-carboxamide
摘要:
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, H-1 NMR, and high-resolution mass spectroscopy. The bioassay tests showed that some of the compounds (C-2, C-4, C7-8, and C-12) exhibited good inhibitory activity against cucumber (Cucumis sativus L.) and semen euphorbiae (Leptochloa chinensis N.). Especially, compound C-6 inhibited the growth of cucumber and semen euphorbiae by > 90% at a concentration of 1.875 mu g/mL, and the inhibition of the compound on the rice (Oryza sativa L.) was only 8.3% at a concentration of 7.5 mu g/mL, which indicated a higher selectivity between weed and rice than that shown by Cafenstrole.