PYRIDINES AND PYRIMIDINES SUBSTITUTED BY 4-TRIFLUOROMETHYLPYRAZOLYL

摘要

The invention relates to pyridines and pyrimidines of formula (I), substituted by 4-trifluoromethylpyrazolyl, and to the use of the same as herbicides. In said general formula (I), R<1>, R<2>, R<3> and R<4> represent various radicals, A represents an aromatic or heteroaromatic radical, and Z represents a nitrogen atom or a carbon atom.