| 摘要 |
T 699 FF HERBICIDAL COMPOUNDS Compounds of the formula (I) wherein X1, X2 and X3 each independently represents hydrogen, halogen or alkyl; n is 0 or 1; Z represents hydrogen or halogen or an amino, alkyl, haloalkyl, alkylthio or alkoxy group or a phenoxy group optionally substituted by haloalkyl; A represents CH or N: Y1 and Y2 each independently represents hydrogen, halogen, alkyl, haloalkyl, alkoxy or haloalkoxy; and W represents hydrogen or, or when A is CH and at least one of Y1 and Y2 is not hydrogen or when A is N, hydrogen or halogen; with the proviso that when A represents N, then each of Y1 and Y2 represents hydrogen, have herbicidal properties. The invention also provides a process for their preparation and their use as herbicides.
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