| 摘要 |
3-Chloro-8-cyanoquinolines of the formula <IMAGE> (I) where R1 is -NR2R3, and R2 and R3 are identical or different and are each hydrogen, C1-C8-alkyl, formyl, cyclohexyl, or phenyl, or together are tetramethylene or pentamethylene, and one methylene group in these radicals can be replaced by oxygen, nitrogen or -N(CH3), are used for controlling undesirable plant growth.
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