| 摘要 |
5-Thioxo-2-imidazolinyl benzoic acid cpds. of formula (I) are prepd. by the cyclzation of a cpd. of formula (II). In the formulas, R1 and R2 are each C1-3 alkyl or cyclopropyl; R3 is H, halo, C1-4 alkyl, C1-4 alkylthio, C1-4 alkoxy, CF3, NO2, OCF3, OCHF2 or OCF2CHF2; X is H, halo, methyl; Y and Z are each H halo, C1-6 alkyl, C1-6 alkoxy, C1-4 alkylthio, C1-4 haloalkyl, C3-8 alkenyloxy, C3-8 alkynyloxy or phenyl. (I) are useful as selective herbicides and plant growth regulants.
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