Herbicides containing 3-aryl-5-methylpyrazole-4- carboxylic...

Details Herbicides containing 3-aryl-5-methylpyrazole-4- carboxylic... Herbicides containing 3-aryl-5-methylpyrazole-4- carboxylic...

C - Chemistry, Metallurgy

07

D

260/280, 260/300

C07D 231/14 (2006.01) A01N 43/56 (2006.01) A01N 47/16 (2006.01) A01N 47/22 (2006.01) C07D 403/04 (2006.01)

Patent

CA 1169070

ABSTRACT OF THE DISCLOSURE: Herbicides containing a pyrazole derivative of the formula Image where R1 denotes hydrogen, formyl, acetyl, propionyl, chloroacetyl, dichloroacetyl, methoxyacetyl, methoxycarbonyl, or phenoxycarbonyl which is unsubstituted or mono- or polysubstituted by halogen, R2 denotes phenyl which is unsubstituted or mono- or polysub- stituted by fluorine, chlorine, bromine, methyl, methoxy, cyano, nitro, trifluoromethyl, trirluormethoxy or methoxycarbonyl, R2 further denotes a 5- or 6-membered, heterocyclic aromatic ring which is unsubstituted or substituted by methyl or chlorine and which contains 1 or 2 hetero-atoms X, X being independently oxygen, sulfur or nitrogen, or R2 denotes .alpha.-naphthyl or .beta.-naphthyl, and R3 denotes methyl, ethyl or isopropyl, or a salt of such a pyrazole derivative, a process for combating unwanted plant growth with the active ingredients and methods of manufacturing the herbicides.

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