| abstract |
Compounds of formula <CHEM> wherein R<1> represents: an optionally substituted alkyl, alkenyl, or alkynyl group ; or an optionally substituted cycloalkyl group; or an optionally substituted cycloalkenyl group ; or a group such as aryl, aralkyl, COOR<3>, COR<3>, CN, NO<2>, NR<3>R<4>, OR<5>, halogen atom. R2 represents a group such as NO<2>, CN, R<5>, S(O)mR<5>, SO2NR<3>R<4>, COOR<3>, COR<3>, CONR<3>R<4>, CSNR<3>R<4>, OR<5>, or alkyl substituted by OR<5>, or a halogen atom. R<3> and R<4> represent H or an optionally substituted alkyl. R<5> represents an optionally substituted alkyl m represents zero, 1 or 2 n represents an integer from 1 to 5 p represents zero or 1 and agriculturally acceptable salts thereof. The herbicidal composition comprising these compounds and their application to crop protection. |