Heterocyclically substituted phenoxysulfonylureas and the use thereof as herbicides or plant growth regulators

摘要

Compounds of the formula I or their salts …… in which… R<1> denotes (C1-C8)alkyl, (C2-C8)alkenyl, (C2-C8)alkynyl, where these radicals are substituted by halogen, saturated and unsaturated (C1-C6)alkoxy, (C1-C6)alkylthio, -sulphinyl or -sulphonyl, (C1-C6)-alkoxycarbonyl, NO2, CN or phenyl; in addition (C2-C8)alkenyl, (C2-C8)alkynyl, (C3-C8)cycloalkyl which can be substituted by halogen or by alkoxy or alkylthio; (C5-C8)cycloalkenyl, cyclopropylmethyl, epoxypropyl; furfuryl, tetrahydrofurfuryl, phenoxy(C1-C4)alkyl, where the three last-mentioned substituents can be substituted by halogen, alkyl or alkoxy; or phenyl which can be substituted by halogen, alkyl, alkoxy, NO2, CF3, CN or OCHF2;… or in the case in which R<2> denotes alkenyl, alkynyl, phenyl, phenoxy, which can be substituted as indicated below, alkylsulphonyl or alkylsulphinyl and n NOTEQUAL 0, R<1> also denotes (C1-C8)alkyl,… R<2> independently of one another denotes (C1-C8)alkyl, (C2-C8)alkenyl, (C2-C8)alkynyl, phenyl, phenoxy, (C1-C4)alkoxy, (C1-C4)alkylthio, (C1-C4)alkoxycarbonyl, (C2-C4)alkenyloxycarbonyl, (C2-C4)alkynyloxy-carbonyl, where all abovementioned radicals can be substituted by halogen, (C1-C4)alkoxy or (C1-C4)alkylthio; in addition halogen, NO2, (C1-C4)alkylsulphonyl or (C1-C4)alkylsulphinyl;… n denotes 0, 1, 2 or 3; y denotes O or S;… R<3> denotes hydrogen, (C1-C8)alkyl, (C2-C8)alkenyl, (C3-C8)alkynyl or (C1-C4)alkoxy;… R<2> denotes a heterocyclic radical of the formulae …… E denotes CH or N,… G denotes O or CH2,… R<5> and R<6> denote hydrogen, halogen, alkyl, alkoxy or alkylthio, where the abovementioned alkyl-containing radicals can be substituted by halogen, alkoxy or alkylthio, in addition a radical of the formula -NR<12>R<13>, -OCHR<7>-CO2R<12>, cycloalkyl, alkenyl, alkynyl, alkenyloxy or alkynyloxy,… R<7> denotes hydrogen or alkyl; R<8> denotes alkyl, -CHF2 or -CH2CF3; R<9> and R<10> denote hydrogen, alkyl, alkoxy or halogen,… R<11> denotes hydrogen, alkyl, -CHF2 or CH2CF3 and R<12> and R<13> denotes hydrogen, alkyl, alkenyl or alkynyl,… have excellent herbicidal and plant growth-regulating properties.