| abstract |
The invention relates to novel substituted N-aryl nitrogen-containing heterocyclic compounds of the general formula (I) n n n and to the compounds isomeric to the substituted N-aryl nitrogen-containing heterocyclic compounds of the formula (I), of the formulae (Ia) and (Ib) n n n in which n Q 1 , Q 2 , R 1 , R 2 and Ar have the meanings given in the description, processes for their preparation and their use as herbicides. |