| 摘要 |
A class of 6-arylpyrimidines which is useful in the control of weeds is of the general formulae: <CHEM> wherein R<2> is selected from hydrogen, halo, substituted or unsubstituted alkyl, haloalkyl, polyhaloalkyl, haloalkenyl, polyhaloalkenyl, haloalkynyl, polyhaloalkynyl, alkenyl, alkynyl, alkoxy, alkylthio, alkoxycarbonylalkyl, cyano, alkoxyalkyl, alkoxycarbonyl, cycloalkyl, aralkyl, alkylamino, dialkylamino, or dialkylaminocarbonyl group; R<3> is an alkyl, alkenyl, alkynyl, or haloalkyl group; R<5> is an alkyl, alkenyl, alkynyl, alkenynyl, or alkoxyalkyl, group; R<6> is an aryl group (e.g. aromatic ring); and X is oxygen or sulfur. R<2> and R<3> may form a fused ring. |
