| 摘要 |
<p>Diurethanes of the formula I, where R denotes unsubstituted or halogen- or alkoxy-substituted alkyl, alkenyl or alkynyl, each of up to 5 carbon atoms, and X and Y are identical or different and each denotes hydrogen, halogen, alkyl, haloalkyl, alkoxy or alkylthio, each Or up to 4 carbon atoms, nitro or cyano. Herbicides containing these diurethanes as active ingredients are suitable for combating broadleaved weeds in numerous crops.</p> |
