Substituted (2-heteroaryloxyphenyl)sulfonates, salts thereof and their use as herbicidal agents

A substituted (2-heteroaryloxyphenyl)sulfonate compound of general formula (I) or salt thereof

• in which
• R1 is (C1-C6)-alkyl, (C1-C6)-haloalkyl, (C3-C6)-cycloalkyl, (C3-C6)-halocycloalkyl, (C2-C6)-alkenyl, (C2-C6)-haloalkenyl, (C3-C6)-cycloalkenyl, (C3-C6)-halocycloalkenyl, (C2-C6)-alkynyl, (C2-C6)-haloalkynyl, (C3-C6)-cycloalkyl-(C1-C4)-alkyl, (C3-C6)-halocycloalkyl-(C1-C4)-alkyl, (C1-C4)-alkyl-(C3-C6)-cycloalkyl, (C1-C4)-haloalkyl-(C3-C6)-cycloalkyl, (C1-C4)-alkoxy-(C1-C4)-alkyl, (C1-C4)-haloalkoxy-(C1-C4)-alkyl, (C3-C6)-cycloalkoxy-(C1-C4)-alkyl, (C2-C4)-alkenyloxy-(C1-C4)-alkyl, (C2-C4)-haloalkenyloxy-(C1-C4)-alkyl, (C3-C6)-cycloalkenyloxy-(C1-C4)-alkyl, (C2-C6)-cyanoalkyl, (C1-C4)-alkylthio-(C1-C4)-alkyl, (C1-C4)-haloalkylthio-(C1-C4)-alkyl or (C3-C6)-cycloalkylthio-(C1-C4)-alkyl,
• R2 and R3 are independently hydrogen, halogen, hydroxy, amino, cyano, nitro, formyl, formamide, (C1-C4)-alkyl, (C1-C4)-haloalkyl, (C3-C6)-cycloalkyl, (C2-C4)-alkenyl, (C2-C4)-alkynyl, (C2-C4)-haloalkenyl, (C2-C4)-haloalkynyl, (C1-C4)-alkoxy, (C1-C4)-haloalkoxy, (C3-C6)-cycloalkoxy, (C2-C4)-alkenyloxy, (C1-C4)-alkynyloxy, (C1-C4)-alkylthio, (C1-C4)-haloalkylthio, (C3-C6)-cycloalkylthio, (C1-C4)-alkylsulfinyl, (C1-C4)-haloalkylsulfinyl, (C3-C6)-cycloalkylsulfinyl, (C1-C4)-alkylsulfonyl, (C1-C4)-haloalkylsulfonyl, (C3-C6)-cycloalkylsulfonyl, (C1-C4)-alkoxy-(C1-C4)-alkyl, (C1-C4)-haloalkoxy-(C1-C4)-alkyl, (C1-C4)-alkylthio-(C1-C4)-alkyl, (C1-C4)-alkylsulfinyl-(C1-C4)-alkyl, (C1-C4)-alkylsulfonyl-(C1-C4)-alkyl, (C1-C4)-alkylcarbonyl, (C1-C4)-haloalkylcarbonyl, (C3-C6)-cycloalkylcarbonyl, (C1-C4)-alkylcarbonyloxy, (C1-C4)-haloalkylcarbonyloxy, carboxyl, (C1-C4)-alkoxycarbonyl, (C1-C4)-haloalkoxycarbonyl, (C3-C6)-cycloalkoxycarbonyl, (C1-C4)-alkylaminocarbonyl, (C2-C6)-dialkylaminocarbonyl, (C3-C6)-cycloalkylaminocarbonyl, (C1-C4)-alkylcarbonylamino, (C1-C4)-haloalkylcarbonylamino, (C2-C6)-cycloalkylcarbonylamino, (C1-C4)-alkoxycarbonylamino, (C1-C4)-alkylaminocarbonylamino, (C2-C6)-dialkylaminocarbonylamino, carboxy-(C1-C4)-alkyl, (C1-C4)-alkoxycarbonyl-(C1-C4)-alkyl, (C1-C4)-haloalkoxycarbonyl-(C1-C4)-alkyl, (C3-C6)-cycloalkoxycarbonyl-(C1-C4)-alkyl, (C1-C4)-alkylaminosulfonyl, (C2-C6)-dialkylaminosulfonyl or (C3-C6)-trialkylsilyl,
• R4 is hydrogen, halogen, cyano, nitro, (C1-C4)-alkyl or (C1-C4)-haloalkyl,
• X is N or CR5,
• Y is N or CH,
• and
• R5 is hydrogen, halogen or cyano.