| 摘要 |
2-Phenoxypropionic acid cyanamides of the formula <IMAGE> have a useful selective herbicidal activity against weeds, preferably grass weeds, in crops of useful plants. In this formula R is hydrogen, C1-C4alkyl, C3-C4alkenyl, C3-C4alkynyl or C2-C4alkoxyalkyl, and T is a radical <IMAGE> +TR <IMAGE> wherein A is oxygen or sulfur, X is fluorine, chlorine, bromine, iodine or trifluoromethyl, Y is hydrogen, fluorine, chlorine, bromine or trifluormethyl, and Z is nitrogen or the methine bridge. |
