BIPHENYL-N- (4-PYRIDYL) METHYLSULFONAMIDES

摘要

N-(4-Pyridyl)methylsulfonamides for combating arthropodal pests The present invention relates to the use of N-(4-pyridyl)methylsulfonamides of the formula for combating arthropodal pests (harmful arthropodes) and for protecting materials against infestation and/or destruction by said pests: (I)where the substituents are as follows: R<SUP>1</SUP> is hydrogen, C<SUB>1</SUB>-C<SUB>4</SUB>-alkyl, C<SUB>1-</SUB>C<SUB>4</SUB>-alkoxy, C<SUB>2</SUB>-C<SUB>4</SUB>-alkenyl, C<SUB>2</SUB>-C<SUB>4</SUB>-alkynyl or benzyl; R<SUP>2</SUP>, R<SUP>3</SUP>, R<SUP>4</SUP>, R<SUP>5</SUP> independently of one another are hydrogen, halogen, C<SUB>1</SUB>-C<SUB>4</SUB>-alkyl, C<SUB>1</SUB>-C<SUB>4</SUB>-alkoxy, C<SUB>1</SUB>-C<SUB>4</SUB>-haloalkoxy or C<SUB>1</SUB>-C<SUB>4</SUB>-haloalkyl; R<SUP>2</SUP> and R<SUP>3</SUP> or R<SUP>4</SUP> and R<SUP>5</SUP> together with the carbon atoms to which they are attached may also form a condensed 5- or 6-membered hydro- carbon ring, it being possible for the hydrocarbon ring to carry one or two groups R<SUP>2'</SUP>, R<SUP>3'</SUP>, R<SUP>2'</SUP>, R<SUP>3'</SUP> independently of one another are halogen, C<SUB>1</SUB>-C<SUB>4</SUB>-alkyl, C<SUB>1</SUB>-C<SUB>4</SUB>-alkoxy, halomethoxy or halomethyl; X is a cyclic radical selected from phenyl, naphthyl and five- or six-membered saturated, partially unsaturated or aromatic heterocycles, the heterocycle being attached to the sulfur atom via a carbon atom and containing 1 , 2 or 4 heteroatoms selected from the group consisting of O, N and S, where the cyclic radical X may carry 1 , 2, 3 or 4 substituents R<SUP>a</SUP>.