2,2-difluorocyclopropylethane derivatives, processes for their preparation and their use as pesticides

2,2-Difluorocyclopropylethane derivative of formula I ##STR79## in which R.sup.1-4 are hydrogen,

• R.sup.5 is hydrogen, an alkali metal or a corresponding equivalent of a divalent metal, C.sub.1-20 -alkyl, C.sub.2-20 -alkenyl, C.sub.2-20 -alkynyl, halo-C.sub.1-10 -alkyl, C.sub.1-3 -alkyl-C.sub.3-6 -cycloalkyl, C.sub.3-6 -cycloalkyl-C.sub.1-6 -alkyl, halo-C.sub.3-6 -cycloalkyl-C-.sub.1-6 -alkyl, decahydronaphthalinyl, indanyl, adamantyl, adamantylmethyl, difluorocyclopropylethylcarbonyloxy-C.sub.1-10 -alkyl, difluorocyclopropylethylcarbonyloxydecahydronaphthalinyl, difluorocyclopropylcarbonyloxy-C.sub.1-3 -alkoxy-C.sub.1-3 -alkyl, phenyl-C.sub.1-6 -alkyl, phenyl-C.sub.2-6 -alkenyl, halobenzyl, C.sub.1-4 -alkylbenzyl, C.sub.1-3 -alkoxyphenyl-C.sub.1-6 -alkyl, phenoxybenzyl, .alpha.-cyanophenoxybenzyl, .alpha.-C.sub.1-3 -alkylphenoxybenzyl, ethoxy-(.alpha.-trifluoromethyl)benzyl, halophenyl(cyclopropyl)-C.sub.1-3 -alkyl, halophenoxy-C.sub.1-6 -alkyl, naphthyl-C.sub.1-6 -alkyl, methylthiazolyl-C.sub.1-6 -alkyl, tris(difluorocyclopropylmethylcarbonyloxymethyl)methyl, tri(C.sub.4-8 -cycloalkyl)stannyl, aryl, optionally substituted by one or more of C.sub.1-20 -alkyl, halo-C.sub.1-6 -alkyl, C.sub.1-16 -alkoxy, halo-C.sub.1-6 -alkoxy, phenyl-C.sub.1-6 -alkyl, phenyl-C.sub.1-6 alkoxy, C.sub.3-10 -cycloalkoxy, halo-C.sub.3-10 -cycloalkoxy, C.sub.3-6 -cycloalkylalkoxy, halo-C.sub.3-6 -cycloalkylalkoxy, C.sub.2-6 -alkenyloxy, halo-C.sub.2-6 -alkenyloxy, C.sub.2-6 -alkynyloxy, halo-C.sub.2-6 -alkynyloxy, alkylsulphonyloxy, alkylphenylsulphonyloxy, haloalkylsulphonyloxy, phenyl, halogen, amino, cyano, hydroxy, nitro, aryloxy, heterocycleoxy, haloaryloxy, arylamino, haloarylamino, C.sub.1-6 -alkoxycarbonyl, C.sub.1-6 -alkoxycarbonylmethyl, halo-C.sub.1-6 -alkoxycarbonyl, C.sub.1-2 -alkyldioxy, C.sub.1-6 -alkylthio, halo-C.sub.3-6 -cycloalkylalkylamino, halo-C.sub.3-6 -cycloalkyl-alkylcarbonyloxy, C.sub.1-6 -alkylamino or di-C.sub.1-6 -alkylamino, heterocycle, optionally substituted by halogen, C.sub.1-3 -alkyl or halo-C.sub.1-3 -alkyl, or the group CONHR.sup.8, in which
• R.sup.8 is hydrogen, C.sub.1-6 -alkyl or phenyl, optionally substituted by one or more of C.sub.1-6 -alkyl, halo-C.sub.1-6 -alkyl, C.sub.1-16 -alkoxy, halo-C.sub.1-6 -alkoxy, phenyl-C.sub.1-6 -alkoxy, C.sub.3-10 -cycloalkoxy, halo-C.sub.3-10 -cycloalkoxy, C.sub.3-6 -cycloalkylalkoxy, halo-C.sub.3-6 -cycloalkylalkoxy, C.sub.2-6 -alkenyloxy, halo-C.sub.2-6 -alkenyloxy,C.sub.2-6 -alkynyloxy, halo-C.sub.2-6 -alkynyloxy, alkylsulphonyloxy, haloalkylsulphonyloxy, phenyl, halogen, amino, cyano, hydroxy, nitro, aryloxy, haloaryloxy, arylamino, haloarylamino, C.sub.1-6 -alkoxycarbonyl, halo-C.sub.1-6 -alkoxycarbonyl, C.sub.1-6 -alkylthio, halo-C.sub.3-6 -cycloalkylalkylamino, C.sub.1-6 -alkylamino or di-C.sub.1-6 -alkylamino,
• A is carbonyl, thiocarbonyl or methylene,
• B is oxygen, sulphur or NR.sup.6, in which,
• R.sup.6 is hydrogen, C.sub.1-6 -alkyl or C.sub.3-12 -cycloalkyl, phenyl or COR.sup.7, in which
• R.sup.7 is C.sub.1-6 -alkyl;
• halo-C.sub.1-6 -alkyl;
• phenyl, optionally substituted by one or more of C.sub.1-6 -alkyl, halo-C.sub.1-6 -alkyl, C.sub.1-16 -alkoxy, halo-C.sub.1-6 -alkoxy, phenyl-C.sub.1-6 -alkoxy, C.sub.3-10 -cycloalkoxy, halo-C.sub.3-10 -cycloalkoxy, C.sub.3-6 -cycloalkylalkoxy, halo-C.sub.3-6 -cycloalkylalkoxy, C.sub.2-6 -alkenyloxy, halo-C.sub.2-6 -alkenyloxy, C.sub.2-6 -alkynyloxy, halo-C.sub.2-6 -alkynyloxy, alkylsulphonyloxy, haloalkylsulphonyloxy, phenyl, halogen, amino, cyano, hydroxy, nitro, aryloxy, haloaryloxy, arylamino, haloarylamino, C.sub.1-6 -alkoxycarbonyl, halo-C.sub.1-6 -alkoxycarbonyl, C.sub.1-6 -alkylthio, halo-C.sub.3-6 -cycloalkylalkylamino, C.sub.1-6 -alkylamino or di-C.sub.1-6 -alkylamino;
• C.sub.3-6 -cycloalkyl;
• C.sub.1-6 -alkylamino or C.sub.1-6 -alkoxy
• wherein any heterocycle moiety is a 5- or 6-membered ring containing at least one nitrogen, oxygen or sulfur atoms which optionally carries a fused benzo ring.