Abstract: The invention relates to known and to new acylaminosalicylamides, to a plurality of processes for their preparation and to their use as pesticides. The present application furthermore relates to new intermediates, to a plurality of processes for their preparation and to their use as pesticides.

Abstract: The invention relates to known and to new acylaminosalicylamides, to a plurality of processes for their preparation and to their use as pesticides. The present application furthermore relates to new intermediates, to a plurality of processes for their preparation and to their use as pesticides.

Abstract: A method of combating arthropods and nematodes which comprises applying thereto, to a habitat thereof or to an area from which they are to be excluded an arthropodicidally or nematocidally effective amount of at least one long-chain halogenoolefine of the formula (I) ##STR1## in which R represents a straight-chain or branched alkyl radical with 8 to 25 carbon atoms in the straight chain, the alkyl radical optionally being interrupted once or several times by a --C.tbd.C-- and/or ##STR2## in which Z and Z.sup.1 are identical or different and represent hydrogen or methyl andR.sup.1 represents hydrogen, alkyl or halogen.Those compounds are new wherein R has at least 12 carbon atoms in the straight chain.

Abstract: The novel compound 2,3,5,6-Tetrafluorobenzyl (+)1R-trans-2,2-dimethyl-3-(2,2-dichlorovinyl)-cyclopropanecarboxylate of the formula ##STR1## is highly active insecticidally.

Abstract: A method of combating arthropods and nematodes which comprises applying thereto, to a habitat thereof or to an area from which they are to be excluded an arthropodicidally or nematocidally effective amount of at least one long-chain halogenoolefine of the formula (I) ##STR1## in which R represents a straight-chain or branched alkyl radical with 8 to 25 carbon atoms in the straight chain, the alkyl radical optionally being interrupted once or several times by a --C.tbd.C-- and/or ##STR2## in which Z and Z.sup.1 are identical or different and represent hydrogen or methyl andR.sup.1 represents hydrogen, alkyl or halogen.Those compounds are new wherein R has at least 12 carbon atoms in the straight chain.

Abstract: 2,3,5,6-Tetrafluorobenzoic acid is prepared by hydrogenolysis of pentafluorobenzoic acid (esters).

Abstract: Novel insecticidally and acarididally active vinylcyclopropanecarboxylic acid esters of the formula ##STR1## in which R represents alkylthio, alkylsulphinyl, alkylsulphonyl,amino, monoalkylamino or dialkylamino, and whereinX and Y either simultaneously represent halogen orX and Y simultaneously represent alkyl, or in whichX represents CF.sub.3,Y represents Cl and,R simultaneously represents methylmercapto.The alcohols of such esters are also new.

Abstract: Pesticidal compositions useful in protecting plants and also in the hygiene field are disclosed. The new tetramethylcyclopropanecarboxylates have the formula ##STR1## where R represents mercapto, methylthio, alkylsulphenyl or alkylsulphonyl.

Abstract: A process for the preparation of the enantiomeric pairs (1R-3R-.alpha.S+1S-3S-.alpha.R) and (1R-3S-.alpha.S+1S-3R-.alpha.R) from a mixture of all 8 stereoisomers of the compound .alpha.R/S-cyano-3-phenoxy-4-fluorobenzyl 3R/S-(2,2-dichlorovinyl)-2,2-dimethyl-1R/S-cyclopropanecarboxylate, comprising dissolving the mixture in a secondary or tertiary alkylamine having 2-6 C atoms per alkyl radical, subjecting the solution to crystallization whereby the enantiomeric pairs (1R-3R-.alpha.S+1S-3S-.alpha.R) and (1R-3S-.alpha.S+1S-3R-.alpha.R) crystallize out from the solution, and separating the crystallized material. The crystals are enriched in the most active components.

Abstract: Novel Substituted benzoxazine derivatives of the formula ##STR1## in which X is oxygen or suophur, andR.sup.1 and R.sup.2 each independently is hydrogen, alkyl, alkoxy, akylthio, halogenoalkyl, alkanoyl, aroyl, halogen, cyano, nitro, nitroso, amino or the suophonic acid grouping, with the restriction that either of R.sup.1 and R.sup.2 does not represent hydrogen if the other represents hydrogen, the 6-methyl group, the 6-ethyl group, the 6-butyl group or the 6-acetyl group and X is oxygen,which possess fungicidal activity. A few related compounds, though known, also possess such activity.

Abstract: A pentafluorobenzyl 2,2-dimethyl-3-vinylcyclopropane carboxylate of the formula ##STR1## in which R is hydrogen or halogen, andR.sup.1 is optionally substituted phenyl, orR and R.sup.1 together constitute an alkylene chain with at least two carbon atoms,which possess arthropodicidal properties.

Abstract: Pesticidal compositions comprise synergistic mixtures of active compounds 1R-(-)-[(pentafluorophenyl)-methyl]-3S-3-(2,2-dichloroethenyl)-2,2-dimethy lcyclopropanecarboxylate and O,O-dimethyl O-2,2-dichlorovinyl phosphate (dichlorvos) and, if appropriate, O-isopropoxyphenyl N-methylcarbamate (propoxur). These compositions may be used for combating arthropods.

Abstract: Substituted 3-(1,2-dibromo-alkyl)-2,2-dimethyl-cyclopropane-1-carboxylic acid esters of the formula ##STR1## in which R.sup.1 is halogen or optionally substituted phenyl or optionally substituted alkyl,R.sup.2 is hydrogen, halogen or optionally substituted alkyl, andY is the radical of an alcohol customary in pyrethroids, with the proviso that Y is a benzyloxy radical which is substituted by halogen and optionally substituted by at least one additional radical if R.sup.1 is halogen or methyl,which possess pesticidal properties. The acid moieties of such esters wherein R.sup.1 is optionally substituted phenyl are new compounds.

Abstract: 1-Aryl-cyclopropane-1-carboxylic acid esters of the formula ##STR1## in which R.sup.1 represents a hydrogen atom, a cyano radical or an alkyl, alkenyl or alkinyl radical within each case up to 7 carbon atoms, andR.sup.2 represents a phenyl radical which is substituted by halogen and/or optionally halogen-substituted phenoxy, with the proviso that the radical R.sup.2 in total contains at least one fluorine substituent,R.sup.3 and R.sup.4, which can be identical or different, represents a fluorine, chlorine or bromine atom or a methyl radical,R.sup.5 represents a hydrogen or halogen atom or a methyl or methoxy radical, andR.sup.6 represents a hydrogen or halogen atom, a cyano nitro or amino radical or an optionally halogen-substituted radical selected from C.sub.1 to C.sub.4 alkyl, C.sub.1 to C.sub.4 alkoxy and C.sub.1 to C.sub.4 alkylthio,or whereinthe two radicals R.sup.5 and R.sup.6 together represent an optionally halogen-substituted C.sub.1 or C.sub.

Abstract: A 3-(2,chloro-3,3,4,4,4-pentafluoro-1-butenyl)-2,2-dimethyl-cycloproanecarbo xylic acid ester of the formula ##STR1## in which R.sup.1 represents hydrogen, cyano or an alkyl, alkenyl or alkynyl radical with in each case up to 4 carbon atoms, andR.sup.2 represents a phenyl radical which is substituted by fluorine and/or by optionally fluorine-substituted C.sub.1 -C.sub.2 -alkylenedioxy and/or by optionally fluorine-substituted phenoxy, with the proviso that the radical R.sup.2 contains a total of at least one fluorine-substituent which possesses insecticidal and acaricidal activity.

Abstract: A substantially pure compound selected from the group consisting of the d-menthyl esters of 1RS-cis-, 1RS-cis/trans-, 1R-cis-, 1S-cis-, 1R-trans- and 1S-trans-3-(2,2-dichloro- and dibromo-vinyl)-2,2-dimethylcyclopropanecarboxylic acid, the 1-menthyl esters of 1RS-cis-, 1RS-trans-, 1RS-cis/trans-, 1R-cis-, 1S-cis-, 1R-trans- and 1S-trans-3-(2,2-dibromo-vinyl)-2,2-dimethyl-cyclopropanecarboxylic acid and the 1-menthyl esters of 1R-trans- and 1S-trans-3-(2,2-dichloro-vinyl)-2,2-dimethyl-cyclopropanecarboxylic acid. The esters are produced by reacting enantiomers of the acids with d- or 1-menthol are selectively crystallizing.

Abstract: A process for the separation of enantiomers of a chiral carboxylic acid, comprising reacting an alkali metal salt of the acid with an amount of an optically active amine salt which is equivalent to only one enantiomer, in an aqueous weakly alkaline buffered solution as the reaction medium, the reaction medium having a pH value at which the entire acid is present in the ionized form but at which no amine salt is yet deprotonated. Advantageously the carboxylic acid is of the formula ##STR1## wherein R.sup.1 and R.sup.2 each independently is hydrogen, alkyl, with 1-4 C atoms, halogen, optionally substituted phenyl or optionally substituted phenylmercapto,the optically active amine salt is a mineral acid salt of a phenylglycine alkyl ester, .alpha.

Abstract: A process for the monohalogenation of alkylbenzenes in the .alpha.-position is disclosed wherein an alkylbenzene reactant containing a hydrogen atom in the .alpha.-position is contacted with a halogen and the reaction mixture is withdrawn such that the amount of monohalogenated alkylbenzene formed is no greater than 33 mol percent in the reaction mixture. Also disclosed are novel monohalogenated alkylbenzenes of the formula ##STR1## in which R.sup.7 represents trifluoromethoxy, trifluoromethylthio or 2-perfluoropropyl or also, if R.sup.8 represents chlorine, represents trifluoromethyl and, furthermore, ifR.sup.8 and R.sup.9 represent trifluoromethyl, represents hydrogen,R.sup.8 represents hydrogen or also, if R.sup.7 represents trifluoromethyl or trifluoromethoxy, represent chlorine and also, if R.sup.7 represents hydrogen and R.sup.9 represents trifluoromethyl, denotes trifluoromethyl andR.sup.9 represents hydrogen and, if R.sup.7 represents hydrogen and R.sup.

Abstract: 2,2,3,3-Tetramethylcyclopropanecarboxylic acid fluorine-substituted-benzyl esters of the formula ##STR1## in which R.sup.1 is hydrogen, cyano, or alkyl, alkenyl or alkynyl each with up to 4 carbon atoms, andR.sup.2 is a phenyl radical which is substituted by halogen and/or by optionally halogen-substituted phenoxy, with the proviso that the radical R.sup.2 in total contains at least one fluorine substituent,which possess insecticidal and acaricidal properties.

Abstract: Fluorine-substituted spirocarboxylic acid benzyl esters of the formula ##STR1## in which R.sup.1 represents hydrogen, cyano or alkyl, alkenyl or alkynyl, with in each case up to 4 carbon atoms,R.sup.2 represents a phenyl radical which is substituted by halogen and/or by optionally halogen-substituted phenoxy, with the proviso that the radical R.sup.2 contains in total at least one fluorine substituent, andR.sup.3, R.sup.4, R.sup.5 and R.sup.6 each represent hydrogen, halogen or alkyl, orR.sup.3 and R.sup.4, taken together, and/or R.sup.5 and R.sup.6, taken together, represent alkanediyl (alkylene) or a fused-on benzo radical,and the C atoms of the 5-member spirocyclic ring are linked to one another either by double bonds or by single bonds, which possess arthropodicidal properties.