1 - benzilsulfonil - 3 - heteroaril - (uncle) urea replaced, process for their preparation, compositions herbicides, use, process for the preparation of compositions, isotiocianatos,The process for their preparation, benzilsulfonamidas, process for their preparation, chlorides of benzilsulfonicos acids, process for their preparation, benzisulfonicos acids.The process for their preparation, and chloride of 2 - trifluormetoxi - benzila and process for its preparation

摘要

Herbicidally active novel substituted 1-benzylsulphonyl-3-heteroaryl(thio)-ureas of the formula IMAGE in which Q represents oxygen or sulphur, R1 represents hydrogen, or represents optionally substituted radicals from the series comprising alkyl, alkenyl, alkynyl and aralkyl, R2 represents hydrogen, halogen, hydroxyl, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, halogenoalkylthio, amino, alkylamino or dialkylamino, R3 represents hydrogen or alkyl, R4 represents halogenoalkyl, X represents nitrogen or a -CH grouping, Y represents nitrogen or a -CR5 grouping, R5 represents hydrogen, halogen, cyano, alkyl, formyl, alkyl-carbonyl or alkoxy-carbonyl, Z represents nitrogen or a -CR6 grouping, and R6 represents hydrogen, halogen, hydroxyl, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, alkylamino or dialkylamino, and salts thereof with metals and basic organic nitrogen compounds. The benzylsulphonyl moieties are also new.