Patent ID: 7388018

Claim:
A sulfonamide of the formula I wherein: R 1 is hydrogen, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, C 2 -C 4 -alkenyl, C 2 -C 4 -alkynyl or benzyl; R 2 , R 3 , R 4 , and R 5 are independently of one another hydrogen, halogen, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or halomethyl; R 2 and R 3 together may also form a phenyl, cyclopentyl or cyclohexyl ring, it being possible for these rings to carry two groups R 2 and R 3 , R 2 and R 3 independently of one another are hydrogen, halogen, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or halomethyl; in case a), if R 2 , R 3 , R 4 and R 5 are hydrogen: X is phenyl substituted by a group —C(R 6 )═NOR 7 , wherein R 6 is C 1 -C 4 -alkyl and R 7 is C 1 -C 8 -alkyl, benzyl, C 2 -C 4 -alkenyl, C 1 -C 4 -haloalkyl, C 2 -C 4 -haloalkenyl, C 2 -C 4 -alkynyl or C 2 -C 4 -haloalkynyl; and in case b), if at least one of the groups R 2 , R 3 , R 4 and R 5 is not hydrogen: X is phenyl, naphthyl or a five- or six-membered saturated, partially unsaturated or aromatic heterocycle which is attached via a carbon atom and contains one to four heteroatoms selected from the group consisting of O, N and S, where X may carry one to four groups R a : R a is halogen, cyano, nitro, C 1 -C 8 -alkyl, C 1 -C 8 -alkoxy, C 1 -C 8 -haloalkoxy, C 1 -C 4 -alkylcarbonyl, C 1 -C 4 -alkoxycarbonyl, —C(R 6 )═NOR 7 , C 1 -C 4 -alkylaminocarbonyl, di(C 1 -C 4 -alkyl)aminocarbonyl or phenyl or phenoxy, where the rings may carry one to three groups R b : R b is halogen, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkyl or C 1 -C 8 -haloalkoxy; R a or R b may also be a C 3 -C 4 -alkylene or a C 4 -alkenylene group which, together with two adjacent ring members of the phenyl ring to which it is attached, forms a ring which may be substituted by one or more of the abovementioned groups R a or R b .