| abstract |
A herbicide of the formula: <IMAGE> in which: Z is N or CX', W, Y, Y', X, Z' and X' represent H, a halogen atom, NO2, CN or a polyhalogenoalkyl, alkyl or alkoxy group, R2 represents H, halogen, substituted alkyl, allyl, propargyl, CN, NR4R5, C(X2)R7, C(X2)X3R8, C(X2)NR4R5, SO2F, SO2OR8, SO2NR4R5 or P(X2)R9R10, R1 is halogen, X2R3 or NR4R5, R3 is optionally substituted alkyl or is allyl or propargyl, R4, R7 and R8 represent H, alkyl, cycloalkyl, phenyl, allyl, propargyl or the like, R5 represents R4, a cation or OR6, R6 being H, a cation or alkyl, X2 and X3 are O or S, R9 and R10 are H, alkyl, OH, OM or R1, and M is a cation. |