USE OF QUINOLINE DERIVATIVES FOR PROTECTING CULTIVATED PLANTS

摘要

The use of quinoline derivatives of the formula where R1, R2 and R3 independently of one another are hydrogen, halogen, nitro, cyano, C1-C3-alkyl or C1-C3-alkoxy, R4, R5 and R6, independently of one another are hydrogen, halogen or C1-C3-alkyl, A is one of the groups -CH2-, -CH2CH2- or -CH(CH3)- and Z is a) cyano or amide oxime which can be acylated on the oxygen atom, or b) a carboxyl group or a salt thereof, a mercaptocarbonyl group or a salt thereof, a carboxylate group, a thiocarboxylate group, an unsubstituted or substituted carboxamido group, a cyclised, unsubstituted or substituted derivative of a carboxamido group, or a carboxylic acid hydrazide group, or A and Z together are an unsubstituted or substituted tetrahydrofuran- 2-one ring, including their acid addition salts and metal complexes, for protecting crop plants against damaging effects of herbicidally active derivatives of 2-[4-(benzoxazole-, benzothiazole- and quinoxaline-2- yl-oxy)-phenoxy]-propionates. The abovementioned herbicidal derivatives are those of the formula II in which M is -OR' or -N(CN)-R2', R' is C1-C12-alkyl which is substituted by 1 to 6 halogen atoms, by C1-C6-alkoxy or C1-C4-alkylthio, R2' is C1-C4-alkyl, C3-C4-alkenyl, C3-C4-alkynyl or alkoxyalkyl having a total of 2 to 4 carbon atoms, and Q is in which X is an oxygen or sulphur atom, R1' and R1" are halogen, trifluoromethyl, nitro, cyano, C1-C4-alkyl or C1-C4-alkoxy, and n and m are 0, 1 or 2, or, when m is -N(CN)-R2', additionally where Hal<1> is fluorine, chlorine, bromine, iodine or trifluoromethyl, Hal<2> is fluorine, chlorine, bromine, trifluoromethyl or hydrogen, and L is the structural element N- or CH-.