| 摘要 |
The invention relates to novel 2,4-diaminopyrimidines of the formula (I) <IMAGE> in which R<1> and R<4> independently of one another represent hydrogen or alkyl, R<2> represents hydrogen, alkyl which is optionally substituted by halogen, cyano, alkoxy, alkylthio and cyclopropyl, alkenyl which is optionally substituted by halogen, or alkynyl, R<3> represents alkyl, R<5> represents halogen, alkoxy or alkylthio, Z represents branched or unbranched alkylene and Y represents oxygen or sulphur, several processes for their preparation, and their use as herbicides. |
