1-Methyl-5-alkylsulfonyl-, 1-methyl-5-alkylsulfinyl- and 1-methyl-5-alkylthio- substituted pyrazolylpyrazoles, processes for their preparation and their use as herbicides

摘要

1-Methyl-5-alkylsulfonyl-, 1-methyl-5-alkylsulfinyl- and 1-methyl-5-alkylthio-substituted pyrazolylpyrazoles, processes for their preparation and their use as herbicides;1 -Methyl-5-alkylsulfonyl-, 1-methyl-5-alkylsulfinyl- and 1-methyl-alkylthio-substituted pyrazolylpyrazoles of the formula (I) are described as herbicidally active compounds. ;In this formula (I), R¹ and R⁴ are various substituents, R² is halogen or cyano, R³ is cyano, nitro or thiocarbamoyl and n is 0, 1 or 2.