4- PIRIDINYLMETHYLSULPHONAMIDE DERIVATIVE AS FUNGICIDAL PLANT PROTECTION AGENTS

摘要

Sulfonamides of the formula I where the substituents are as follows: R¹ is hydrogen, alkyl, alkoxy, alkenyl or alkynyl; and R², R³, R⁴, R⁵ are hydrogen, halogen, alkyl, alkoxy or halomethyl; R² and R³ together may also form a phenyl, cyclopentyl or cyclohexyl ring, it being possible for these rings to carry two groups R²' and R³', R²', R³' are hydrogen, halogen, alkyl, alkoxy or halomethyl; in case a), if R², R³, R⁴ and R⁵ are hydrogen: X is phenyl substituted by a group C(R⁶)-NOR⁷, where R⁶ is alkyl and R⁷ is alkyl, benzyl, alkenyl, haloalkyl, haloalkenyl, alkynyl or haloalkynyl; and in case b), if at least one of the groups R², R³, R⁴ and R⁵ is not hydrogen: X is phenyl, naphthyl or a five- or six-membered saturated, or partially unsaturated or aromatic heterocycle which is attached via a carbon atom and contains one to four heteroatoms from the group consisting of O, N and S, where X may be substituted according to the description; Processes for preparing these compounds, compositions comprising them and their use for controlling phytopathogenic harmful fungi.