| 摘要 |
<p num="1"><br/><br/><br/>The invention relates to a fungicidally active compound of formula (I): where <br/>Het is a 5- or 6-membered heterocyclic ring containing one to three <br/>heteroatoms, each independently selected from oxygen, nitrogen and sulphur, <br/>the ring being substituted by the groups R6, R7 and R8; R1 is hydrogen, C1-4 <br/>alkyl, C1-4 haloalkyl, C1-4 alkoxy, C1-4 haloalkoxy, CH2C.ident.CR9, <br/>CH2CR10=CHR11, CH=C=CH2 or COR12; R2 and R3 are each, independently, hydrogen, <br/>halo, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl or C1-4 haloalkoxy; R4 and R5 <br/>are each independently selected from halo, cyano and nitro; or one of R4 and <br/>R5 is hydrogen and the other is selected from halo, cyano and nitro; R6, R7 <br/>and R8 are each, independently, hydrogen, halo, cyano, nitro, C1-4 alkyl, C1-4 <br/>haloalkyl, C1-4 alkoxy(C1-4)alkyl, C1-4 haloalkoxy(C1-4)alkyl or C1-4 <br/>haloalkoxy, provided that at least one of R6, R7 and R8 is not hydrogen; R9, <br/>R10 and R11 are each, independently, hydrogen, halo, C1-4 alkyl, C1-4 <br/>haloalkyl or C1-4 alkoxy(C1-4)alkyl; and R12 is hydrogen, C1-6 alkyl, C1-6 <br/>haloalkyl, C1-4 alkoxy(C1-4 )alkyl, C1-4 alkylthio(C1-4)- alkyl, C1-4 alkoxy <br/>or aryl; to the preparation of these compounds, to novel intermediates used in <br/>the preparation of these compounds, to agrochemical compositions which <br/>comprise at least one of the novel compounds as active ingredient, to the <br/>preparation of the compositions mentioned and to the use of the active <br/>ingredients or compositions in agriculture or horticulture for controlling or <br/>preventing infestation of plants by phytopathogenic microorganisms, preferably <br/>fungi.<br/>
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