2-aryl-5-heterocyclyl-cyclohexane-1,3,dione compounds and their use as herbicides

Abstract

Cyclohexanedione compounds of Formula (I) wherein Ris methyl, ethyl, n-propyl, iso-propyl, cyclopropyl, halomethyl, haloethyl, halogen, vinyl, ethynyl, methoxy, ethoxy, halomethoxy or haloethoxy, Rand Rare, independently hydrogen, halogen, C-Calkyl, C-Chaloalkyl, C-Calkoxy, C-Chaloalkoxy, C-Calkenyl, C-Chaloalkenyl, C-Calkynyl, C-Calkenyloxy, C-Chaloalkenyloxy, C-Calkynyloxy, C-Ccycloalkyl, C-Calkylthio, C-Calkylsulfinyl, C-Calkylsulfonyl, C-Calkylsulfonyloxy, C-Chaloalkylsulfonyloxy, cyano, nitro, phenyl, phenyl substituted by C-Calkyl, C-CCahaloalkyl, C-Calkoxy, C-Chaloalkoxy, cyano, nitro, halogen, C-Calkylthio, C-Calkylsulfinyl or C-Calkylsulfonyl, or heteroaryl or heteroaryl substituted by C-CCalkyl, d.Cahaloalkyl, C-Calkoxy, C-Chaloalkoxy, cyano, nitro, halogen, C-Calkylthio, C-Calkylsulfinyl or C-Calkylsulfonyl, Ris hydrogen, methyl, ethyl, n-propyl, iso-propyl, halomethyl, haloethyl, halogen, vinyl, ethynyl, methoxy, ethoxy, halomethoxy or haloethoxy, X is O, S, S(O) or S(O), Ris hydrogen or methyl, Ris hydrogen, methyl or ethyl, or forms a double bond, which links the carbon atom, to which Ris attached, with the adjacent carbon atom of Ror R, Rand Rare independently of each other C-Calkylene, which is unsubstituted or substituted by methyl or ethyl, or C-Calkenylene, which is unsubstituted or substituted by methyl or ethyl, and G is hydrogen, an alkali metal, alkaline earth metal, sulfoniυm, ammonium or a latentiating group, are suitable for use as herbicides.