申请人:Shell Research Limited
公开号:US05304532A1
公开(公告)日:1994-04-19
Compounds of the formula ##STR1## wherein X.sup.1, X.sup.2 and X.sup.3 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; Y.sup.1 and ZY.sup.2 each independently represents hydrogen, halogen, alkyl, haloalkyl, alkoxy or haloalkoxy; and W represents hydrogen or, when A is CH and at least one of Y.sup.1 and Y.sup.2 is not hydrogen or when A is N, hydrogen or halogen; with the proviso that when A represents N, then each of Y.sup.1 and Y.sup.2 represents hydrogen, have herbicidal properties. The invention also provides a process for their preparation and their use as herbicides.
式为##STR1##的化合物,其中X.sup.1,X.sup.2和X.sup.3分别独立地代表氢、卤素或烷基;n为0或1;Z代表氢或卤素或氨基、烷基、卤代烷基、硫代烷基或烷氧基或可选择由卤代烷基取代的苯氧基;A代表CH或N;Y.sup.1和ZY.sup.2分别独立地代表氢、卤素、烷基、卤代烷基、烷氧基或卤代烷氧基;W代表氢或者当A为CH且至少有一个Y.sup.1和Y.sup.2不是氢或当A为N时,氢或卤素;但当A代表N时,则Y.sup.1和Y.sup.2中的每一个都代表氢,具有除草性能。该发明还提供了一种制备它们的方法以及它们作为除草剂的用途。