发明授权
US07211673B2 4-trifluoromethylpyrazolyl-substituted pyridines and pyrimidines 失效
4-三氟甲基吡唑基取代的吡啶和嘧啶

4-trifluoromethylpyrazolyl-substituted pyridines and pyrimidines
摘要:
A description is given of 4-trifluoromethylpyrazolyl-substituted pyridines and pyrimidines of formula (I) and of their use as herbicides. In this formula (I) R1, R2, R3 and R4 are various radicals, A is an aromatic or heteroaromatic radical, and Z is a nitrogen or carbon atom.
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