Abstract: 3-(2,3-Dichloro-3,3-difluoro-prop-1-en-1-yl)-2,2-dimethyl-cyclo-propanecarb oxylic acid fluoro-benzyl esters of the formula ##STR1## in which R.sup.1 represents hydrogen, cyano, alkyl with up to 4 carbon atoms, alkenyl with up to 4 carbon atoms or alkynyl with up to 4 carbon atoms, andR.sup.2 represents a phenyl radical which is substituted by fluorine and/or optionally fluorine-substituted phenoxy, with the proviso that the radical R.sup.2 in total contains at least one fluorine substituent,which possess pesticidal activity.

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.

Abstract: A process for the preparation of a substituted vinyl-cyclopropanecarboxylic acid ester of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is alkyl with 1-4 carbon atoms or halogen,R.sup.3 is halogen, phenoxy or phenoxy substituted by alkyl with 1-4 carbon atoms or by halogen,R.sup.4 is halogen or methyl, andn is 0, 1, 2, 3 or 4,comprising saponifying with alkali an ester of the formula ##STR2## in which R.sup.5 is alkyl with 1-4 carbon atoms,thereby to replace R.sup.5 by an alkaline salt group, and directly reacting such salt without intermediate purification with a benzyl chloride of the formula ##STR3## Advantageously the benzyl chloride is obtained by the gas-phase photochlorination of a compound of the formula ##STR4## the chlorination proceeding to about 25 to 75%, and the chlorination mass being employed directly without isolation.

Abstract: A process for the separation of the cis- and trans-stereoisomers of a substituted vinylcyclopropanecarboxylic acid of the formula ##STR1## in which R is alkyl with 1 to 4 carbon atoms, halogen, phenyl or phenyl substituted by at least one of alkyl and halogen, andR.sup.1 is hydrogen, alkyl with 1 to 4 carbon atoms or halogen, orR and R.sup.1, together with the adjacent C atom, form a carbocyclic ring,comprising reacting the free vinylcyclopropanecarboxylic acid in a weakly alkaline aqueous solution with an amount of an amine salt corresponding to the proportion of the cis-isomer present thereby to form a salt precipitate enriched in one of the stereoisomers, separating the precipitant from the supernatant, separately reacting the precipitate and supernatant with a strong acid to liberate the isomeric vinylcyclopropanecarboxylic acid, and recrystallizing at least one of the stereoisomers.

Abstract: Benzyl phenyl ethers, many of which are new, of the formula ##STR1## in which X is ##STR2## R.sup.1 is H or alkyl, R.sup.2 is alkyl, alkenyl, alkynyl, alkylidene, alkenylidene or alkynylidene optionally substituted by OH, alkoxy, a heterocyclic group containing O, S or N, amino, monoalkylamino, dialkylamino or by an alkylene bridge with 5 carbon atoms,R.sup.3 each independently is H, alkyl, alkoxy, alkylmercapto, halogen, halogenoalkyl, halogenoalkoxy, halogenoalkylmercapto, NO.sub.2, amino, monoalkylamino or dialkylamino,R.sup.4 each independently is H, halogen or alkoxy,m is an integer from 1 to 5, andn is an integer from 1 to 4,and acid addition salts thereof, are useful for combatting arthropods, nematodes, fungi and bacteria.

Abstract: A process for the separation of the stereoisomers of a stereoisomer mixture of a cyclic carboxylic acid of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.2 -C.sub.6 -alkenyl,R.sup.3 is alkyl, alkenyl or alkynyl having up to 6 carbon atoms and optionally substituted by halogen, or alkoxycarbonyl having up to 5 carbon atoms, or is aralkyl or aryl, orR.sup.1 plus R.sup.2, or R.sup.1 plus R.sup.3, together with the adjacent C atom, form a carbocyclic ring,R.sup.3 and COOH are cis or trans to one another and the COOH group is in the exo or endo position if R.sup.1 and R.sup.

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.3and m 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 4 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.

Abstract: Benzyl phenyl ethers, many of which are new, of the formula ##STR1## in which X is ##STR2## R.sup.1 is H or alkyl, R.sup.2 is alkyl, alkenyl, alkynyl, alkylidene, alkenylidene or alkynylidene optionally substituted by OH, alkoxy, a heterocyclic group containing O, S or N, amino, monoalkylamino, dialkylamino or by an alkylene bridge with 5 carbon atoms,R.sup.3 each independently is H, alkyl, alkoxy, alkylmercapto, halogen, halogenoalkyl, halogenoalkoxy, halogenoalkylmercapto, NO.sub.2, amino, monoalkylamino or dialkylamino,R.sup.4 each independently is H, halogen or alkoxy,M is an integer from 1 to 5, andN is an integer from 1 to 4,And acid addition salts thereof, are useful for combatting arthropods, nematodes, fungi and bacteria.

Abstract: An electronic musical instrument providing continuous cybernetic tone finding controlled by functions of the human mouth. The instrument includes a mouthpiece into which air is to be blown from the mouth of a player having a measuring apparatus at least partially mounted therein. The measuring apparatus includes an arrangement for producing a pitch determining signal representing a measure of the mouth cavity of the player and a volume determining signal representing the velocity or pressure of the air blown into the mouthpiece. Tone generating apparatus is provided for generating a tone signal whose frequency varies with the level of a control signal applied thereto with a control signal being applied to the tone generating apparatus in accordance with the pitch determining signal and having a level representing a measure of the mouth cavity of the player.

Abstract: Plant growth is regulated, e.g., inhibited, by applying to a plant or its habitat a composition containing as an active ingredient a phospholenium salt of the formula ##STR1## in which R.sup.1 is alkyl, substituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl, aralkyl substituted in the aryl part, alkoxy, substituted alkoxy, alkylthio or substituted alkylthio,R.sup.2 is alkyl, substituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl or aralkyl substituted in the aryl part,Y is a chain of the structure --CH.sub.2 --CH.dbd.CH--CH.sub.2 -- or CH.dbd.CH--CH.sub.2 --CH.sub.2 -- which can be substituted by at least one of halogen and alkyl, andA.sup.- is one equivalent of an anion of a non-phytotoxic acid,In admixture with a solid or liquefied gaseous diluent or carrier or in admixture with a liquid diluent or carrier containing a surface-active agent.

Abstract: Piperazine derivatives of the general formula ##STR1## in which R.sup.1, R.sup.2, and R.sup.3, independently of one another, are each optionally substituted alkyl, optionally substituted alkenyl, alkynyl, cycloalkyl or aralkyl which is optionally substituted in the aryl part, andN is 0, 1, 2, 3, or 4,Exhibit powerful plant growth-regulating properties.

Abstract: Plant-growth regulating compositions and methods having strong effects on plant growth, containing a heterocyclic sulfonium salt of the formula ##STR1## in which R is alkyl; substituted alkyl; alkenyl; alkynyl; cycloalkyl; or aralkyl which is optionally substituted in the aryl moiety;A.sup.- is one equivalent of an anion; and X is oxygen or the group N.sup.+ R'R" A.sup.- or S.sup.+ -R'" A.sup.- in whichA.sup.- is identified as above;R' and R", which may be identical or different, are each alkyl of up to 6 carbon atoms; andR'" is defined as R or can be, together with R, an ethylene linkage.

Abstract: Compositions for regulating the growth of plants containing phospholanium salts of the formula: ##STR1## in which R.sup.1 is optionally substituted alkyl, alkenyl, alkynyl or cycloalkyl, or aralkyl which is optionally substituted in the aryl part,R.sup.2 is optionally substituted alkyl, alkenyl, alkynl or cycloalkyl, or aralkyl which is optionally substituted in the aryl part,R.sup.3 is halogen or alkyl,n is 0, 1 or 2, andA.sup.- is one equivalent of an anion of a nonphytotoxic acidAre outstandingly useful to inhibit, enhance, or modify the growth of plants, even at relatively low dosages.

Abstract: 1,4-DITHIENE SULFONIUM SALTS OF THE FORMULA ##SPC1##In whichR is alkyl, substituted alkyl, alkenyl, alkynyl of up to 8 carbon atoms; cycloalkyl, aralkyl; or aralkyl substituted in the aryl moiety;Z is hydrogen or alkyl, andA.sup.- is one equivalent of an anionAre outstandingly effective as plant growth regulants, e.g., as plant growth inhibitors.