C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/476.1, 260/3
C07C 323/47 (2006.01) A01N 35/10 (2006.01) A01N 41/06 (2006.01) C07D 333/38 (2006.01)
Patent
CA 1282792
ABSTRACT Herbicidal Cyclohexane-1,3-dione Derivatives The invention concerns novel compounds of the formula I Image I wherein: R1 is selected from alkyl, alkenyl, alkynyl, cycloalkyl benzyl and substituted benzyl; A is selected from hydrogen, halogen, nitro, alkyl, alkoxy, alkylthio, alkenylthio, alkynylthio, cycloalkoxy, cyclo- alkylthio, sulfamoyl, N-(C1 to C6 alkyl)sulfamoyl, N,N-di- (C1 to C6 alkyl)sulfamoyl, benzylthio and substituted benzylthio; R2 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, acyl, alkylsulfonyl, benzenesulfonyl, substituted benzenesulfonyl, and an inorganic or organic cation; R3 is selected from alkyl, alkenyl, alkynyl, substituted alkyl, haloalkenyl and haloalkynyl; and R4 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl and phenyl. The compounds are herbicides and in further embodi- ments the invention provides processes for the preparation of compounds of formula I, intermediates useful in the preparation of compounds of formula I, herbicidal compo- sitions containing as active ingredient a compound of formula I, and processes for severely damaging or killing unwanted plants by applying to the plants or to the growth medium of the plants an effective amount of a compound of formula I.
418535
Bird Graham John
Farquharson Graeme John
Houston Timothy Leslie
Serban Alexander
Watson Keith Geoffrey
Ici Australia Limited
Marks & Clerk
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