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The herbicidal activities of compounds 2a–2o (1 mM) against two plant species. No effect = 0, and complete inhibition of germination = 5.
| Compound | R | Lettuce | Bentgrass |
|---|---|---|---|
| 2a | 3,5-di-CH3 | 0 | 3 |
| 2b | 2,6-di-Cl | 0 | 3 |
| 2c | 3,4-di-F | 1 | 4 |
| 2d | 4-Cl | 1 | 4 |
| 2e | H | 1 | 4 |
| 2f | 2-CH3-3-NO2 | 1 | 4 |
| 2g | 2-CH3 | 1 | 4 |
| 2h | 2,6-di-F | 0 | 4 |
| 2i | 2-Cl | 0 | 4 |
| 2j | 2,5-di-OCH3 | 0 | 2 |
| 2k | 4-CF3 | 0 | 3 |
| 2l | 3-Cl | 0 | 4 |
| 2m | 2,4-di-Cl | 2 | 4 |
| 2n | 2,6-di-CH2CH3 | 1 | 4 |
| 2o | 2,3,4-tri-F | 1 | 5 |
| Clomazone | 5 | 5 | |
| Flumioxazin | 5 | 5 |
