| 摘要 |
<p>Novel compounds having the formula <IMAGE> in which X is (H)2 or (CH3)2; Y is oxygen or sulfur; R1 is alkyl, lower alkenyl, cyclopropyl, lower alkoxy, thio-lower alkyl or <IMAGE> R2 and R3 are independently hydrogen, lower alkyl, lower alkenyl, or lower alkoxy and n is 0 or 1. The compounds have been found to possess herbicidal activity.</p> |
