| abstract |
Strong herbicidal action, weed control in agricultural crops, also effective against perennial weeders. The invention relates to weed killing agents. According to the invention, the novel agents contain compounds of the formula I in which R.sup.1 and R.sup.2 independently of one another are hydrogen, (C.sub.1-C.sub.12) -alkyl, (C.sub.3-C.sub.8) cycloalkyl, phenyl, benzyl or phenethyl, where the groups mentioned are themselves halogen, NH.sub.2 , OH, SH, NO 2, (C 1 -C 4) -alkoxy, (C 1 -C 4) -alkylthio, CF 3, (C 1 -C 4) -alkoxycarbonyl, COOH or CONH 2, or R 1 and R 2 together form an alkylene chain of 2 to 7C -Atomen, R3 is hydrogen or (C1-C12) alkyl and m is 0, 1, 2 or 3, as well as their salts with bases and acids, in addition to formulation auxiliaries. Formula (I) |