| abstract |
The invention relates to new 3-aminopyrazolin-5-ones of the formula (I), in which R 1 represents alkyl, alkenyl, haloalkyl, haloalkenyl, alkoxyalkyl, alkylthioalkyl, cycloalkyl, optionally substituted aralkyl or optionally substituted aryl, R² represents hydrogen or alkyl, R³ represents hydrogen or alkyl, R⁴ represents hydrogen, alkyl, alkenyl, alkynyl, alkoxyalkyl, alkylthioalkyl, alkoxycarbonylalkyl or alkanoyl or R³ and R⁴ together represent a double-linked alkylene or alkenylene radical, X represents halogen, alkyl, alkoxy, alkylthio, haloalkyl, haloalkoxy or haloalkylthio and Z represents hydrogen, halogen, alkyl, alkoxy, alkylthio, haloalkyl, haloalkoxy or haloalkylthio, as well as their acid addition salts, several processes and new intermediates for their preparation and their use as herbicides. |