| 摘要 |
<p>Novel diurethanes of the general formula I <IMAGE> (wherein R1 represents C1-C4-alkyl or phenylethyl, R2 represents C1-C4- alkyl, halogeno-C1-C4-alkyl, C2-C4- alkenyl or -alkynyl or halogeno- C2-C4-alkenyl or -alkynyl, Y represents H or F and X represents O or S) have a herbicidal action and accordingly may be made up with suitable carriers into herbicidal preparations and may be used for protecting living plants and crop areas against weeds.</p> |
