| abstract |
Pesticidally active 5-heterocyclyl-1-aryl-pyrazoles of the formula <IMAGE> in which R1 represents hydrogen, alkyl or haloalkyl, R2 represents alkyl, alkenyl, alkinyl, cycloalkyl, haloalkyl, haloalkenyl, optionally substituted aralkyl or optionally substituted aryl, Ar represents in each case optionally substituted phenyl or pyridyl, Het represents a heterocycle of the formula <IMAGE> n represents a number 0, 1 or 2, where R3 and R4, independently of one another, represent in each case hydrogen, alkyl or phenyl. Intermediates of the formulas <IMAGE> +TR <IMAGE> are provided, the former also being pesticidal. |