| abstract |
Compounds of the formula: <CHEM> wherein R1 represents: a group such as alkyl, cycloalkyl, haloalkyl, aryl or ester; R2 represents: a group such as nitro, cyano, halogen, R5, S(O)mR5, ester or alkoxy; R5 represents alkyl or haloalkyl; R6 represents : a group such as hydrogen, hydroxy, halogen, R5, cycloalkyl, S(O)mR5 or ester; R7 represents hydrogen or R5; and agriculturally acceptable salts thereof; the herbicidal properties of these compounds and their application to crop protection, are described. |