| 摘要 |
<p>Styrene derivatives I <IMAGE> (R<1> = H; R<2> = halogen; R<3> = H, halogen, C1-C4-alkyl; R<4> = CN, C1-C6-alkylcarbonyl; A = a heterocyclic radical A1 to A5 <IMAGE> where R<5> and R<6> are H, CH3 or C2H5, n is 0 or 1 and X is oxygen or sulphur), with the proviso that R<4> is an alkylcarboxyl group if R<1> represents H and simultaneously A represents A2 where n = 0; and their agriculturally useful salts, the preparation of the styrene derivatives I and herbicidal agents containing them.</p> |
