| 摘要 |
4-Aminopicolinic acids, having halogen, alkoxy, alkylthio, aryloxy, heteroaryloxy or trifluoromethyl substituents in the 3-, 5- and 6-positions, and their amine and acid derivatives of formula (I) wherein X represents H, halogen, C1-C6 alkoxy, C1-C 6 alkylthio, aryloxy, nitro, or trifluoromethyl; Y represents halogen, C1-C6 alkoxy, C1-C6 alkylthio, aryloxy, heteroaryloxy or trifluoromethyl; Z represents halogen, C1-C 6 alkoxy, C1-C6 alkylthio, aryloxy or nitro; and W represents - NO2, -N3, -NR1R2, -N=CR3R 4 or -NHN=CR3R4 are potent herbicides demonstrating a broad spectrum of weed control.
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