Abstract: 4-Alkyl-2-trifluoromethylanilines, in particular the 4-isopropyl derivative, are starting materials for preparing valuable azo dyestuffs. While the nonionic dyestuff types can preferably be used in transfer printing synthetic hydrophobic fibre materials, the sulpho-containing dyestuffs--in particular those based on "gamma acid"--are suitable for dyeing polyamides.

Abstract: New compounds of the formula ##STR1## a process for their preparation and their use as intermediates for insecticides.

Abstract: Compounds of the formula ##STR1## and a process for their preparation by reacting the corresponding dioxo compound with at least 2 moles of phosphorus pentachloride.

Abstract: Insecticidally and acaricidally active novel compounds of the formula ##STR1## in which A is --CF.sub.2 --CF.sub.2 --, --CF.sub.2 --CHF-- or --CF.sub.2 --CFCl--,X is oxygen or sulphur,R.sup.1, R.sup.2 and R.sup.3 each independently is hydrogen, halogen or alkyl,R.sup.4 and R.sup.5 each independently is hydrogen, halogen, alkyl or halogenoalkyl, andR.sup.6 is hydrogen, halogen or alkyl.The benzodioxene intermediates therefor are also new.

Abstract: Compounds of the formula ##STR1## in which R.sup.1 is hydrogen, halogen or alkyl,R.sup.2 is halogen, alkyl or alkylthio,X is oxygen or sulphur, andY is hydrogen, halogen, alkyl or halogenoalkyl,which possess pesticidal activity.

Abstract: Aromatic compounds which contain perfluorinated side-chains bonded via a heteroatom are prepared by treating aromatic compounds, which contain side-chains which are perhalogenated, but only partially fluorinated, and bonded via heteroatom, with a catalyst capable of transferring halogen atoms.

Abstract: Benzyl esters of the formula ##STR1## in which n is 1,2,3,4, or 5,R.sup.2 is hydrogen, C.sub.1-4 -alkyl, cyano or ethynyl,R.sup.3 is the radical of a carboxylic acid customary in pyrethroids or pyrethroid-like compounds, andat least one R.sup.1 is fluoroalkoxy or fluoroalkylmercapto, or two together are fluoromethylene- or fluoroethylene-dioxy, and the others, if present, are hydrogen or various radicals,which possess arthropodicidal properties. Various alcohols, amines, aldehydes, halides, and the like, corresponding to the alcohol moieties of the esters are also synthesized.

Abstract: Benzo-fused, tetrachlorinated heterocyclic compounds are prepared by first reacting pyrocatechol or a pyrocatechol derivative with tetrachloroethylene carbonate, with the addition of a tertiary amine, and then adding phosphorus pentachloride, without intermediate isolation.

Abstract: A compound of the formula ##STR1## in which R.sup.1 represents a hydrogen or halogen atom or an alkyl radical,R.sup.2 represents a hydrogen or halogen atom,X represents an oxygen or sulphur atom,Y represents a hydrogen or halogen atom or an alkyl or halogenoalkyl radical andA represents an alkylene radical which is substituted by fluorine and optionally additionally substituted by chlorine,which possesses insecticidal activity.

Abstract: A process for the preparation of an aromatic trifluoromethyl compound which comprises contacting an aromatic compound of the formula ##STR1## wherein R.sup.1 denotes hydrogen, alkyl, aryl, aralkyl, aryloxy, arylthio, polyhalogenoalkoxy or polyhalogenoalkylthio and the aromatic substituents R.sup.1 can in turn be substituted by halogen, alkyl, polyhalogenoalkyl, polyhalogenoalkoxy, polyhalogenoalkylthio, nitro, chlorocarbonyl or chlorosulfonyl, and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently hydrogen, halogen or alkyl and two adjacent radicals of the group R.sup.1 to R.sup.5 can conjointly form a three-membered to five-membered alkylene radical, with carbon tetrachloride and hydrogen fluoride at a temperature in the range of 50.degree. C. to 140.degree. C. Certain new aromatic trifluoromethyl compounds which can prepared by such a process are also disclosed.

Abstract: Benzyl esters of the formula ##STR1## in which n is 1,2,3,4, or 5,R.sup.2 is hydrogen, C.sub.1-4 -alkyl, cyano or ethynyl,R.sup.3 is radical of a carboxylic acid customary in pyrethroids or pyrethroid-like compounds, andat least one R.sup.1 is fluoroalkoxy or fluoroalkylmercapto, or two together are fluoromethylene- or fluoroethylene-dioxy, and the others, if present, are hydrogen or various radicals,which possess arthropodicidal properties. Various alcohols, amines, aldehydes, halides, and the like, corresponding to the alcohol moieties of the esters are also synthesized.

Abstract: Alkylbenzotrifluorides can be isomerized in the presence of hydrogen fluoride.

Abstract: Fluorine-containing phenylacetic acid esters of the formula ##STR1## in which R represents the radical of an alcohol customary in the case of pyrethroids,R.sup.1 represents C.sub.2-4 -alkyl, C.sub.2-4 -alkenyl or cyclopropyl,X represents H, halogen, alkyl, alkoxy, OCHF.sub.2, SCHF.sub.2, SCClF.sub.2 or SCF.sub.3 andX.sup.1 can vary widely or form a fused ring with X,the overall compound necessarily containing a fluorine atom, which compounds possess arthropodicidal properties. Intermediates therefor and an overall synthesis from an alcohol of the formula ROH and a toluene of the formula ##STR2## are also shown.

Abstract: A process for the preparation of an optionally substituted trifluoromethyl-naphthalene which comprises contacting a compound of the formula ##STR1## in which R.sup.1 denotes hydrogen, alkyl, aralkyl, aryl, aryloxy, arylthio, polyhalogenoalkoxy, polyhalogenoalkylthio, halogen, nitro, halogenocarbonyl, halogenosulphonyl, alkylsulphonyl or arylsulphonyl, it being possible for the aromatic nuclei contained in the substituents R.sup.1 to be in turn substituted by halogen, alkyl, polyhalogenoalkoxy or polyhalogenoalkylthio,R.sup.2 represents hydrogen, halogen or alkyl andR.sup.3, R.sup.4, R.sup.5 and R.sup.6 denote hydrogen, orR.sup.3 and R.sup.4 or R.sup.4 and R.sup.5 in each case together denote a fused-on aromatic ring, and wherein, in the case where R.sup.3 and R.sup.4 together form a fused-on aromatic ring,R.sup.5 and R.sup.6 independently of one another can also denote, in addition to hydrogen, halogen, nitro, halogenocarbonyl or halogenosulphonyl, and wherein, in the case where R.sup.4 and R.sup.

Abstract: A process for the preparation of a halogenated benzoyl fluoride, which comprises contacting a halogenated benzotrifluoride of the formula ##STR1## in which m and n independently of one another represent an integer from 0 to 5, the sum of m and n being 5, with at least one sulphur compound of the formula ##STR2## in which X denotes fluorine, chlorine or hydroxyl andY represents hydroxyl, orX and Y together denote an oxygen atom linked to the sulphur atom by a double bond,at an elevated temperature, and after reaction with the halogenated benzotrifluoride, removing the sulphur compound from the reaction mixture in the form of a compound of the formula ##STR3## in which X has the meaning given andHal represents fluorine or chlorine, the reaction product is further reacted with potassium fluoride at an elevated temperature and under increased pressure.

Abstract: Tetrachlorophthalamic acids of the formula ##STR1## in which R.sup.1 represents a trihalogenomethyl, trihalogenomethoxy or trihalogenomethylmercapto group,R.sup.2 represents hydrogen, halogen or a lower alkyl or lower alkoxy group, orR.sup.1 together with R.sup.2, in the o-position relative to each other, denote --O--CF.sub.2 --O--CF.sub.2 --,--O--CF.sub.2 --O--or --O--CF.sub.2 --CFX--O--, whereinX represents hydrogen, chlorine or fluorine, andR.sup.3 represents hydrogen, halogen or a lower alkyl, lower alkoxy, lower alkylmercapto or aryloxy group, the aryloxy being optionally substitutedwhich possess activity against bacteria, particularly those which attack plants.

Abstract: Benzyl esters of the formula ##STR1## in which n is 1,2,3,4, or 5,R.sup.2 is hydrogen, C.sub.1-4 -alkyl, cyano or ethynyl,R.sup.3 is the radical of a carboxylic acid customary in pyrethroids or pyrethroid-like compounds, andat least one R.sup.1 is fluoroalkoxy or fluoroalkylmercapto, or two together are fluoromethylene- or fluoroethylene-dioxy, and the others, if present, are hydrogen or various radicals,which possess arthropodicidal properties. Various alcohols, amines, aldehydes, halides, and the like, corresponding to the alcohol moieties of the esters are also synthesized.

Abstract: Fluorine-containing phenylacetic acid esters of the formula ##STR1## in which R represents the radical of an alcohol customary in the case of pyrethroids,R.sup.1 represents C.sub.2-4 -alkyl, C.sub.2-4 -alkenyl or cyclopropyl,X represents H, halogen, alkyl, alkoxy, OCHF.sub.2, SCHF.sub.2, SCClF.sub.2 or SCF.sub.3 andX.sup.1 can vary widely or form a fused ring with X,the overall compound necessarily containing a fluorine atom, which compounds possess arthropodicidal properties. Intermediates therefor and an overall synthesis from an alcohol of the formula ROH and a toluene of the formula ##STR2## are also shown.

Abstract: N-(Substituted-phenyl)-N'-(2-chloro-6-fluoro-benzoyl)- ureas of the formula ##STR1## in which R represents halogenoalkyl with 1-4 carbon atoms,R.sup.1 represents hydrogen, halogen or halogenoalkyl with 1-4 carbon atoms,X represents oxygen or sulphur, andn represents the number 1 or 2which possess insecticidal properties.

Abstract: 2,2-Dimethyl-3-vinyl-cyclopropane carboxylic acid esters of halogenated benzyl alcohols of the formula ##STR1## in which each R independently represents F, Cl, Br or CH.sub.3 andm and n each represent 0, 1, 2, 3, 4 or 5 subject to the sum of m+n being not more than 5,with the provisos that(i) when each R represents F or Br then m and n cannot both be 0,(ii) when each R represents Cl, then m represents 0, 1, 2, 3 or 5 and n represents 1, 2, 3, 4 or 5, and(iii) when each R represents CH.sub.3, then m represents 0 and n represents 5,which possess arthropodicidal properties.