1-(2-OXYAMINOSULPHONYLPHENYLSULPHONYL)-3-HETEROARYL-ISOUREAS AND-THIOUREAS,THEIR PREPARATION AND THEIR USE AS HERBICIDES

摘要

Herbicidally active novel 1-(2-oxyaminosulphonylphenylsulphonyl)-3-heteroaryl-iso (thio)-ureas of the formula IMAGE in which R is optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl-alkyl, cycloalkyl, aralkyl, aryl or heteryl, R1 is optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkyl-alkyl, aralkyl or aryl, R2 is hydrogen, or optionally substituted alkyl, alkenyl, alkinyl or aralkyl, R3 is an optionally substituted and/or optionally fused 6-membered aromatic heterocycle which contains at least one nitrogen atom, and Q is oxygen or sulphur, or strong acid-adducts thereof.