| 摘要 |
<p>Herbicidally active, 1,4-di-substituted pyrazolidindiones of general formula (I), wherein A, B and D, which may be the same or different, each independently represents N or CR?6; R1, R2, R4, R5 and R6¿, which may be the same or different, each independently represents a hydrogen or halogen atom, a formyl, cyano, carboxy, or azido group, or an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio, alkynylthio, aryloxy, alkylamino, alkylcarbonyl or alkoxycarbonyl group; and R3 represents a hydrogen atom or an optionally substituted alkyl, alkenyl, alkynyl, tetrahydrofurfuryl, cycloalkyl, aralkyl or phenyl group; together with compositions containing such compounds as active ingredient, and their herbicidal use.</p> |
