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Pyridyloxyalkanoic Acid Amide Derivatives Useful As Fungicides
Abstract: Fungicidal compounds of the general formula (I): wherein X and Y are independently H, halo, C¿1-8? alkyl, C¿3-6? cycloalkyl, C¿2-8? alkenyl, C¿2-8? alkynyl, C¿1-8? alkoxy, C¿1-8? alkylthio, nitro, amino, mono- or di-(C¿1-6?)alkylamino, mono- or di-(C¿2-6?)alkenylamino, mono- or di-(C¿2-6?)alkynylamino, formylamino, C¿1-4? alkyl(formyl)amino, C¿1-4? alkylcarbonylamino, C¿1-4? alkyl(C¿1-4? alkylcarbonyl)amino, cyano, formyl, C¿1-4? alkylcarbonyl, C¿1-4? alkoxycarbonyl, aminocarbonyl, mono- or di-(C¿1-4?)alkylaminocarbonyl, carboxy, C¿1-4? alkylcarbonyloxy, aryl(C¿1-4?)alkylcarbonyloxy, C¿1-4? alkylsulphinyl, C¿1-4? alkylsulphonyl, C¿1-4? alkylsulphonyloxy, aryl, heteroaryl, aryloxy, arylthio, heteroaryloxy or heteroarylthio wherein any of the foregoing alkyl, cycloalkyl, alkenyl, alkynyl, aryl, heteroaryl, groups or moieties are optionally substituted; R?1¿ is phenyl, cyano, C¿1-4? alkyl, C¿2-4? alkenyl or C¿2-4? alkynyl in which the alkyl, alkenyl and alkynyl groups are optionally substituted on their terminal carbon atom with one, two or three halogen atoms, with a cyano group, with a C¿1-4? alkylcarbonyl group, with a C¿1-4? alkoxycarbonyl group or with a hydroxy group, or R?1¿ is alkoxyalkyl, alkylthioalkyl, alkylsulphinylalkyl or alkylsulphonylalkyl in which the total number of carbon atoms is 2 or 3; R?2¿ is H, C¿1-4? alkyl, C¿1-4? alkoxymethyl or benzyloxymethyl in which the phenyl ring of the benzyl moiety is optionally substituted with C¿1-4? alkoxy; R?3¿ and R?4¿ are independently H, C¿1-3? alkyl, C¿2-3? alkenyl or C¿2-3? alkynyl provided that both are not H and that when both are other than H their combined total of carbon atoms does not exceed 4, or R?3¿ and R?4¿ join with the carbon atom to which they are attached to form a 3 or 4 membered carbocyclic ring optionally containing one O, S or N atom and optionally substituted with halo or C¿1-4? alkyl; and R?5¿ is halo, C¿1-4? alkyl or C¿3-4? cycloalkyl in which the alkyl or cycloalkyl group is optionally substituted with halo, hydroxy, C¿1-6? alkoxy, C¿1-6? alkylthio, cyano, C¿1-4? alkylcarbonyloxy, aminocarbonyloxy, mono- or di(C¿1-4?)alkylaminocarbonyloxy, or tri(C¿1-4?)alkylsilyloxy. The compounds and compositions containing them are especially useful for combating fungal infections of plants.
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