Patent ID: 7741485

Claim:
A compound which is a benzenesulfonamide derivative of the formula I in which the variables are as defined below: X 1 is halogen; X 2 is chlorine; X 3 is hydrogen; Y is a group —C(A)B; A is oxygen; B is oxygen or sulfur; R 1 is hydrogen, C 1 -C 8 -alkyl, C 3 -C 7 -cycloalkyl, or phenyl-C 1 -C 4 alkyl, wherein C 1 -C 8 alkyl may be substituted by C 1 -C 8 alkoxy or C 1 -C 8 alkoxycarbonyl; Q is A 8 and A 9 are oxygen; R 29 is hydrogen, C 1 -C 6 alkyl, or amino; R 30 is C 1 -C 6 haloalkyl; R 31 is hydrogen; or an agriculturally useful salt thereof.