DERIVATES OF 5-ARYLIZOXAZOLE, PREPARATION PROCESSES THEREFOR, COMPOSITIONS AND HERBICIDE TREATMENT METHOD THEREFOR

摘要

5-Aryl isoxazole derivatives of general formula (I): wherein: Ar represents phenyl optionally substituted substituted by one or more groups R<2> or pyridyl substituted by one or more groups R<2>; R represents :- hydrogen, -CO2R<3>, -COR<4>, cyano, halogen, alkyl or haloalkyl; R<1> represents :- alkyl, haloalkyl or cycloalkyl; R<2> represents :- a halogen atom, R<4>, nitro, -CO2R<3>, -OR<4>, -S(O)mR<4>, -S(O)mR<5>, -O-(CH2)p-OR<4> or an alkyl group substituted by -OR<4>; R<3> and R<4>, which may be the same or different, each represent alkyl or haloalkyl; R<5> represents optionally substituted phenyl; p represents an integer from 1 to 3; and m represents zero, 1 or 2; the herbicidal properties of these derivatives and their application to crop protection is described.