摘要:
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.
摘要:
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.
摘要:
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.-methylbenzylamine, phenylethylamine, phenylethanolamine, 1-phenyl-2-dimethyl-amino-1,3-propanediol or abietylamine, the buffered solution contains potassium carbonate, sodium carbonate, sodium bicarbonate or sodium hydrogen phosphate as the buffering agent, and the reaction is effected at about 0.degree. to 100.degree. C., the process including the further steps of separating the precipitated ammonium salt from the alkali metal salt that remains in solution, treating the ammonium salt with a strong acid whereby the free carboxylic acid enantiomer is liberated, and treating the alkali metal salt that remains in solution with a strong acid whereby the free carboxylic enantiomer is liberated.
摘要:
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.
摘要:
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.
摘要翻译:分离式为“IMAGE”的取代的乙烯基环丙烷羧酸的顺式和反式立体异构体的方法,其中R是具有1至4个碳原子的烷基,卤素,苯基或被至少一个烷基和卤素取代的苯基 R 1是氢,具有1至4个碳原子的烷基或卤素,或R和R 1与相邻的C原子一起形成碳环,包括使弱碱性水溶液中的游离乙烯基环丙烷羧酸与一定量的 胺盐对应于存在的顺式异构体的比例,从而形成富含一种立体异构体的盐沉淀物,将沉淀剂与上清液分离,分别使沉淀物和上清液与强酸反应以释放异构的乙烯基环丙烷羧酸,以及 使至少一种立体异构体重结晶。
摘要:
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.
摘要:
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.3 together form a ring, andn is 0, 1 or 2,which comprises contacting a weakly alkaline, aqueous solution of the stereoisomeric mixture with a non-polar organic solvent, whereby the cis or endo isomeric free acid enters the organic solvent while the trans or exo isomer remains in the aqueous solution as a salt, and separating the aqueous solution from the organic solvent, thereby to separate the isomers. Preferred acids are cyclopropanecarboxylic acid derivatives, the aqueous solution is preferably buffered to a pH of about 7 to 9 and the organic solvent is preferably a hydrocarbon, halogenated hydrocarbon, aromatic hydrocarbon or ether.
摘要:
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.
摘要:
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. Another control signal in accordance with the volume determining signal serves for controlling the output of the tone generating apparatus with the output being converted to sound.
摘要:
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.