| 摘要 |
2,4-Diamino-1,3,5-triazines, process for their preparation and their use as herbicides and plant growth regulators, Compounds of the formula (I) and salts thereof where R<1 >is (C1-C10)alkyl, (C3-C6)cycloalkyl, (C1-C10)alkoxy or (C1-C10)alkylthio, optionally halogenated and in the case of cyclic radicals optionally also substituted by (C1-C6)alkyl and (C1-C6)haloalkyl; R<2 >and R<3 >are H, (C1-C4)alkyl, CHO or [(C1-C10)alkyl]carbonyl, optionally halogenated; R<4 >is hydrogen, (C1-C10)alkyl, (C2-C10)alkenyl, (C2-C10)alkynyl or (C3-C6)cycloalkyl, where each of the 4 last-mentioned radicals is unsubstituted or halogenated and in the case of cyclic radicals optionally substituted by (C1-C6)alkyl and (C1-C6)haloalkyl; R<4 >is hydrogen, (C1-C10)alkyl, (C2-C10)alkenyl, (C2-C10)alkynyl or (C3-C6)cycloalkyl, where each of the 4 last-mentioned radicals is unsubstituted or substituted by one or more radicals selected from the group consisting of halogen and in the case of cyclic radicals also (C1-C6)alkyl and (C1-C6)haloalkyl; each of the radicals R<5>, R<6>, R<7>, R<8 >and R<9 >independently of the others is hydrogen, halogen; nitro. cyano, thiocyanato, (C1-C10)alkyl, (C2-C10)alkenyl, (C2-C10)alkynyl, (C1-C10)alkoxy, (C2-C10)alkenyloxy, (C2-C<
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