Substituted 5-acylamino-1-phenylpyrazoles composition containing them, and herbicidal method of using them

A 5-acylamino-1-phenylpyrazole of the formula ##STR141## in which R is cyano or aminocarbonyl, or alkoxycarbonyl, alkenyloxycarbonyl, alkinyloxycarbonyl, alkylaminocarbonyl, alkenylaminocarbonyl or alkinylaminocarbonyl, each of which has up to 4 carbon atoms in the individual alkyl, alkenyl or alkinyl parts,

• R.sup.1 is alkyl, alkenyl, alkinyl, alkoxyalkyl or alkylthioalkyl each of which has up to 6 carbon atoms in the individual alkyl or alkenyl or alkinyl parts, or is halogenoalkyl having 1 to 6 carbon atoms and 1 to 9 identical or different halogen atoms or is cycloalkyl having 3 to 7 carbon atoms, or aryl which has 6 to 10 carbon atoms and is optionally substituted by halogen, cyano, nitro, and/or alkyl, alkoxy, alkylthio or alkoxycarbonyl, each of which has up to 4 carbon atoms in the individual alkyl parts, or in the case in which Y represents the ##STR142## group, also may be hydrogen, X represents oxygen or sulfur,
• Y represents oxygen, sulfur or the ##STR143## group, Z is hydrogen or alkyl, alkoxy, alkenyl or alkinyl, each of which has up to 4 carbon atoms, or is aryl which has 6 to 10 carbon atoms and is optionally substituted by those substituents mentioned in the case of R.sup.1,
• R.sup.2 is hydrogen or the radical ##STR144## and R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 each independently is hydrogen, fluorine, chlorine, bromine, iodine or nitro, or alkyl, alkoxy, alkylsulphonyl or alkoxycarbonyl, each of which has up to 4 carbon atoms in the particular alkyl parts, or is --(X').sub.n --R.sup.8,
• X' is oxygen, sulphur, sulphinyl or sulphonyl,
• n is 0 or 1, and
• R.sup.8 is halogenoalkyl having up to 4 carbon atoms and up to 9 halogen atoms,
• with the provisos that
• (1) at least one of R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 is --(X').sub.n --R.sup.8,
• (2) when R is aminocarbonyl or alkoxycarbonyl and Y is oxygen, then R.sup.5 is not haloalkyl, and
• (3) when R is cyano and Y is oxygen, then n is 1.