AZOLYL ETHER KETONES AND ALCOHOLS

Glyoxyl-Cyclohexendione.

Methylglyoxal acetals useful as intermediates for antibacterials - produced by reacting dihydroxyacetone with an alkanol in presence of cation exchange resin catalyst

Cpds. of formula: CH3COCH(OR)2 (where R = 1-4C alkyl) are produced by reacting dihydroxyacetone with at least 1 equiv. of a 1-4C alkanol at 50-150 pref. 60-120 degrees in the presence of a cation exchange resin obtd. from an acid of pK 1, pref. a sulphonated polystyrene or sulphonate styrene-divinylbenzene copolymer.

VERFAHREN ZUR ERZEUGUNG VON BETA, DELTA-DIOXOENANTHALDEHYDDIALKYLACETALEN

PROCESS AND INTERMEDIATES FOR PREPARATION OF 4-ACETYL-2-SUBSTITUTED-IMIDAZOLES

1,2,4-TRIAZOLYL-ENOLETHER, VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG ALS FUNGIZIDE

Feuerlöschzusammensetzung

Improvements in the production of substituted butanones

... 1-(3,4-Dihydroxycyclohexyl)-1,2-dihydroxy-butanone is prepared by oxidation of b -(1,2,5,6-tetrahydrophenyl)-vinyl methyl ketone. Oxidation may be effected in aqueous suspension with a solution of the oxidizing agent, for example 1-7 per cent potassium permanganate or hydrogen peroxide or sodium chlorate. Temperature is preferably not above room temperature, e.g. 0-15, especially 0-5 DEG C., rising towards the end with final heating to about 100 DEG C. The product may be partially or completely esterified or etherified, for example with acetic anhydride or dialkyl sulphate. Acetates, propionates, butyrates, acrylates, succinates, phthalates and hexahydrobenzoates are specified esters while ethers are methyl, ethyl, propyl, butyl, lauryl and benzyl and ethers of polyhydric alcohols, e.g. ethylene glycol, propylene glycol, and glycerol. The products are plasticisers, especially for cellulose acetate. The starting material may be prepared by reacting acrolein with butadiene-1,3 to give 1,2,5,6 ...

A process for the preparation of hydroxymethyl alpha-hydroxy alkyl ketones or monoethers thereof

A process for the preparation of hydroxymethyl-a -hydroxyalkyl ketones of formula where R is H or an alkyl group, and R1 is H or a hydrocarbon group of 1-10 carbon atoms, by contacting the corresponding a ,b -dihydroxyaldehyde of formula or a dimer thereof, with a tertiary amine, the quantity of amine being less than equivalent/mol. of aldehyde or 2 equivalents/mol. dimer. In the above formulae the alkyl group R has preferably 1-3 carbon atoms, and R1 may be a branched or unbranched alkyl group, an alkenyl, cycloaliphatic, or aryl group, preferably a saturated hydrocarbon group having 1-6 carbon atoms. Any tertiary amine may be used in the process, including polyamines, and substituted amines if the substituent is unreactive in the process such as a halogen, ether or thioether substituent. The reaction may be carried out in substantially anhydrous conditions in a solvent inert for the amine. The concentration of tertiary amine lies in the range 0.01 ...

A-HALOMETHYLAMINO COMPOUNDS AND THEIR PREPARATION

CHEMICAL COMPOUNDS

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

PROTECTED ONE 3,5-DIHYDROXY-2,2-DIMETHYL VALERONITRILE FOR the SYNTHESIS OF EPOTHILONEN AND DERIVATIVES AND PROCEDURE FOR the PRODUCTION AND the USE

VERFAHREN ZUR HERSTELLUNG VON GLYOXAL, ALKYLGLYOXALEN UND VON DEREN ACETALEN

GLYOXYL CYCLOHEXENDIONE ONE.

NEW CARBACYCLINE, PROCEDURES FOR YOUR PRODUCTION AND YOUR USE AS DRUGS.

AETHER AND THIOAETHER WITH HEILENDER EFFECT, THEIR PRODUCTION AND THESE CONTAINING PHARMACEUTICAL COMPOSITIONS.

PROCEDURE FOR THE PRODUCTION OF FLUORIDATED CARBONIC ACID FLUORIDES.

EPOTHILON SYNTHESEBAUSTEINE I: ASYMMETRICALLY SUBSTITUTED ACYLOINE AND ACYLOINDERIVATE, PROCEDURES FOR THEIR PRODUCTION AS WELL AS THEIR USE FOR THE PRODUCTION OF EPOTHILONEN AND EPOTHILONDERIVATEN

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW IMMUNOTHERAPEUTI MEANS AND THEIR USE IN THE REDUCTION OF CYTOKINENSPIEGEL

NEW CARBACYCLINES, PROCESS FOR THEIR PRODUCTION AND THEIR USEAS MEDICAMENTS

CYCLOPROPANE COMPOUNDS

RETROVIRAL PROTEASE INHIBITING COMPOUNDS

Retroviral protease inhibiting compounds

AZOLYL-TETRAHYDROFURAN-2-YLIDENE-METHANE DERIVATIVES

INTERMEDIATE IN THE PREPARATION OF CYCLOPROPYLCARBOXYLATE ESTERS AND PROCESS FOR ITS MANUFACTURE

INTERMEDIATES IN THE PREPARATION OF CYCLOPROPYLCARBOXYLATE ESTERS AND PROCESS FOR THEIR MANUFACTURE

PROCESS FOR THE MANUFACTURE OF HALOGENATED PRECURSORS OF ALKENONES IN THE PRESENCE OF A SOLVENT

The invention relates to a process for preparing a halogenated precursor of an alkenone, which comprises reacting a carboxylic acid halide with a vinyl ether in a liquid reaction medium comprising an alkenone or a halogenated precursor of the alkenone, and also relates to a process for preparing an alkenone, which comprises (a) reacting a carboxylic acid halide with a vinyl ether by introducing vinyl ether into a liquid reaction medium containing carboxylic acid halide to form a halogenated precursor of the alkenone and (b) eliminating hydrogen halide from said precursor to form the alkenone.

INTERMEDIATE IN THE PREPARATION OF CYCLOPROPYLCARBOXYLATE ESTERS AND PROCESS FOR ITS MANUFACTURE

NOVEL INTERMEDIATE IN THE PREPARATION OF CYCLOPROPYLCARBOXYLATE ESTERS AND PROCESS FOR ITS MANUFACTURE 3-Hydroxymethyl-2,2-dimethylcyclopropanecarbaldehyde dimethyl acetal, especially in the same stereoisomeric form as that of the cyclopropane ring in (+)-3-carene, is a novel intermediate useful in the manufacture of pyrethroid insecticides. It may be manufactured by a process characterised in that 3-acetoxymethyl-2,2-dimethylcyclo-propane carbaldehyde dimethyl acetal is subjected to hydrolysis.

INTERMEDIATE IN THE PREPARATION OF CYCLOPROPYLCARBOXYLATE ESTERS AND PROCESS FOR ITS MANUFACTURE

... "NOVEL INTERMEDIATE IN THE PREPARATION OF CYCLOPROPYLCARBOXYLATE ESTERS AND PROCESS FOR ITS MANUFACTURE" 3-Acetoxymethyl-2,2-dimethylcyclopropanecarbaldehyde dimethyl acetal, especially in the same stereoisomeric form as that of the cyclopropane ring in (+)-3-carene, is a novel intermediate useful in the manufacture of pyrethroid insecticides. It may be manufactured by a process characterised in that 2-(3-acetoxy-methyl-2,2-dimethylcyclopropyl)vinyl acetate is subjected to ozonolyis and the ozonolysis product so formed is subjected to reduction in the presence of methanol and an acetalizing catalyst.

PROCESS FOR THE PREPARATION OF 1-ARYLOXY-METHYL KETONES

A process for the preparation of a 1-aryloxy-methyl ketone of the formula in which R1, R2 and R3 each independently is hydrogen, optionally substituted alkyl, alkenyl, alkynyl or optionally substituted aryl, or R1 and R2 together are an alkylene chain, R4 each independently is halogen, alkyl, alkoxy, optionally substituted aryl or nitro, and n is 0, 1, 2 or 3, comprising hydrolyzing a 1-halogeno-2-aryloxy-1-alkene of the formula in which Hal is chlorine or bromine, under acidic conditions at a temperature from about 20 to 150.degree.C,until it is about 95 to 100% complete, adding a base, and then bringing the reaction to completion under weakly alkaline conditions at about 20 tO 150.degree.C. Advantageously all stages of the reaction are effected in a single vessel at a temperature from about 40 to 100.degree.C and in the presence of an inert organic solvent, optionally in admixture with water as a solution or as a two-phase system, about 1 mol of a monobasic acid and 2 mols ...

PROTECTED 3.5-DIHYDROXY-2,2-DIMETHYL-VALERONITRILES FOR THE SYNTHESIS OF EPOTHILONES AND EPOTHILONE DERIVATIVES AND PROCESS FOR THE PRODUCTION AND THE USE

The invention relates to 3.5-dihydroxy-2.2-dimethyl-valeronitriles for the synthesis of epothilone and epothilone derivatives and a method for producing said novel intermediate products in the synthesis and the use thereof in the production of epothilones or epothilone derivatives.

4-CHLORO-4-ALKOXY-1,1,1-TRIFLUORO-2-BUTANONES, THEIR PREPARATION AND THEIR USE IN PREPARING 4-ALKOXY-1,1,1-TRIFLUORO-3-BUTEN-2-ONES

... 4-Chloro-4-alkoxy-1,1,1-trifluoro-2-butanones, prepared by reacting alkyl vinyl ethers with trifluoroacetyl chloride, are useful for preparing 4-alkoxy- 1,1,1-trifluoro-3- buten-2-ones.

PROCESS FOR THE MANUFACTURE OF ALKENONES

Process for preparing an alkenone, which comprises (a) reacting a carboxylic acid halide with a vinyl ether by introducing vinyl ether into a liquid reaction medium containing carboxylic acid halide to form a halogenated precursor of the alkenone and (b) eliminating hydrogen halide from said precursor to form the alkenone.

PROCESS FOR THE PREPARATION OF 2,3-DIALKOXYPROPANALS

BASF Aktiengesellschaft O.Z. 0050/40897 Process for the preparation of 2,3-dialkoxypropanls of the disclosure: The preparation of 2,3-dialkoxypropanals of the general formula I (I), in which R1 and R2 denote C1-C8-alkyl or C5- or C6-cycloalkyl which may or may not bear substituents which are inert under the conditions of the reaction, wherein a 1,2-dialkoxy ethene of the general formula II R10-HC-CH-OR2 (II) is reacted with carbon monoxide and hydrogen in the presence of a rhodiumcontaining catalyst.

Procédé pour la préparation de dialcoylacétals du 8. -dioxocaproaldéhyde

VERFAHREN ZUR HERSTELLUNG NEUER UNGESAETTIGTER VERBINDUNGEN.

PROCEDE POUR LA PREPARATION D'UN DIALCOYLACETAL DU (BETA), (DELTA)-DIOXOENANTHALDEHYDE.

NOUVEAU PROCEDE D'OXYDATION.

PROCEDURE FOR THE PRODUCTION OF ALDEHYDES AND THEIR USE AS SMELL-GIVING MATERIAL.

PROCEDURE FOR THE PRODUCTION OF ALKOXYKETONEN.

Process for preparing carbonyl compounds containing at least one functional group other than carbonyl

PROCEDURE FOR THE PRODUCTION OF ALIPHATIC AETHER.

[...] BIS-DIKETONES, THEIR PREPARATION AND THEIR USE AS MEDICAMENTS.

PROCEDURE FOR THE PREPARATION OF COMPOSED CARBONILICI.

Process for the preparation of alkoxylated aliphatic aldehydes and ketones

Aliphatic aldehydes and ketones containing an alkoxy residue in position ss or delta with respect to the carbonyl group are prepared by reaction of an acetal of an aliphatic aldehyde or ketone with an enoxysilane derived from an enolisable aliphatic aldehyde or ketone, in the presence of a catalyst taken from the group formed by the zinc halides, boron trifluoride and its complexes, the reaction not requiring the use of low reaction temperatures nor of stoichiometric amounts of catalyst. This process is suitable in particular for the preparation of terpenic ss- or delta -methoxy- or -ethoxyaldehydes or ketones, such as 3,7,11-trimethyl-5-ethoxy-2,6,10-dodecatrienal.

Methylglyoxal acetals useful as intermediates for antibacterials

Methylglyoxal acetals useful as intermediates for antibacterials produced by reacting dihydroxyacetone with an alkanol in presence of cation exchange resin catalyst ...

ALPHA HALOGEN METHYL AMINO ACIDS.

Process for increasing the fresh natural flavour of a foodstuff and linear acetal for implementing the process

CYCLOPROPANCARBONSAEUREESTERDERIVATE.

3,3-DIMETHYLCYCLOHEXANDERIVATE.

Methods using fluoroketones for: extinguishing fire; preventing fire; and reducing or eliminating the flammability of a flammable working fluid

Reductive cleavage of perfluoro polyethers contng

Dérivés de cyclopropane et application de certains de ces dérivés comme pesticide.

DERIVES DE CYCLOPROPANE. DERIVES DE CYCLOPROPANE DE FORMULE: (CF DESSIN DANS BOPI) DANS LAQUELLE R REPRESENTE UN GROUPE ACETYLE OU ACETOXY; UN GROUPE ALCOXY CONTENANT DE 2 A 10ATOMES DE CARBONE EVENTUELLEMENT SUBSTITUE PAR UN OU PLUSIEURS ATOMES D'HALOGENE; UN GROUPE (CYCLOALCOYL)ALCOXY CONTENANT DE 3 A 7ATOMES DE CARBONE DANS LE CYCLE; UN GROUPE ALCENYLOXY CONTENANT DE 2 A 4ATOMES DE CARBONE EVENTUELLEMENT SUBSTITUE PAR UN OU PLUSIEURS ATOMES D'HALOGENES; UN GROUPE ALCYNYLOXY CONTENANT DE 2 A 4ATOMES DE CARBONE; UN GROUPE ARYLOXY CONTENANT DE 6 A 12ATOMES DE CARBONE; UN GROUPE ARALCOYLOXY CONTENANT DE 7 A 10ATOMES DE CARBONE; ET X EST -CHCH(OCH); -CHCHO; -CHCHOR OU R EST UN GROUPE ACYLE CONTENANT DE 2 A 5ATOMES DE CARBONE; -CHO; -COCL; -COBR; COOR OU R REPRESENTE UN ATOME D'HYDROGENE, UN CATION FORMANT DES SELS, UN GROUPE ALCOYLE CONTENANT DE 1 A 20ATOMES DE CARBONE; OU UN GROUPE PHENOXYBENZYLE OU ALPHACYANO-PHENOXY-BENZYLE; AVEC LA CONDITION QUE QUAND R EST UN GROUPE ACETOXY, X NE DOIT ...

A process for preparing aldehydes

METHOD FOR PRODUCING CARBONYL COMPOUNDS

Procédé de préparation de composés carbonyle contenant certains groupes fonctionnels. Le procédé consiste à faire réagir un composé carbonyle avec un composé insaturé en présence d'inducteurs à base de manganèse trivalent et d'une amine. Application à l'obtention de 2-méthyl-heptan-2-ol-6-one. Process for the preparation of carbonyl compounds containing certain functional groups. The process consists in reacting a carbonyl compound with an unsaturated compound in the presence of inducers based on trivalent manganese and an amine. Application to the production of 2-methyl-heptan-2-ol-6-one.

PROCESS FOR PREPARING BETA,DELTA-DIOXOCAPROALDEHYDE DIALKYL ACETAL

PROCESS FOR THE PREPARATION OF ALPHA-ETHYNYL-BENZOHYDROLS

PROCEDE POUR LA PREPARATION DE COMPOSES CARBONYLE CONTENANT AU MOINS UN GROUPE FONCTIONNEL EN PLUS DES GROUPES CARBONYLE, ET COMPOSES AINSI OBTENUS

Procédé pour la préparation de composés carbonyle contenant au moins un groupe fonctionnel en plus des groupes carbonyle, et composés ainsi obtenus. Le procédé décrit par la présente invention consiste à faire réagir le composé carbonyle concerné avec un composé contenant au moins une liaison insaturée et un ou plusieurs groupes fonctionnels, en présence de peroxyde comme catalyseur. Application pour la préparation de la 6-méthylheptane-6-éthoxy-2-one, du benzoate de 6-méthylheptane-2-one-6-yle et de dérivés de la 6-méthylheptane-6-ol-2-one dans lesquels le groupe hydroxyle a été éthérifié ou estérifié.

PROCESS FOR THE MANUFACTURE OF HALOGENATED PRECURSORS OF ALKENONES UNDER SPECIFIC CONDITIONS

DIHYDROXYACETONE MONOETHER

The invention relates to the use of dihydroxyacetone monoethers as self-tanning substances, to preparations containing dihydroxyacetone monoethers as well as to specific dihydroxyacetone monoethers and to a method for producing same.

Method for the preparation of carbonyl compounds

For preparing carbonyl compounds containing certain functional groups, a carbonyl compound is reacted with an unsaturated compound in the presence of a trivalent-manganese initiator and an amine. There is a positive coaction between the trivalent-Mn catalyst and the amine. Typically, 2-methyl-3-butene-2-ol is reacted with acetone in the presence of triethylamine and manganese triacetate (bihydrated) to obtain 2-methyl-heptane-2-ol-3-one. Yields and selectivities are more than satisfactory.

Process for producing fluorine-containing organic compound

A process for producing fluorine-containing organic compounds characterized in that fluorine-containing aliphatic iodides which comprise at least one selected from the group of RfI, RfZnI and RfSnX2I (where Rf indicates a fluorine-containing aliphatic group; and X indicates halogen), or which comprise RfCOOR' (where Rf indicates a fluorine-containing aliphatic group; and R' indicates an aliphatic hydrocarbon group or aromatic hydrocarbon group) are reacted with organic compounds under ultrasonic wave action, whereby the Rf group or the RfCO group is introduced into the said organic compounds.

Oxygen-containing aliphatic compounds and their use as intermediates for the preparation of 4-hydroxy-2, 5-dimethyl-3(2H)-furanone

PCT No. PCT/IB94/00261 Sec. 371 Date Apr. 13, 1995 Sec. 102(e) Date Apr. 13, 1995 PCT Filed Sep. 1, 1994 PCT Pub. No. WO95/07876 PCT Pub. Date Mar. 23, 1995The compounds of the invention are characterised by the formulae (II) and (III) wherein index p represents an integer equal to 2 or 3 and q can take the value zero or 1, with the provision that p+q=3. Said compounds are obtained from hex-3-yne-2,5-diol following a process which comprises reacting an ethylenic compound of formula(CH3)2C=C(H)n(CH3)m(I)wherein index n represents an integer equal to 1 or 2 and m can take the values zero or 1 and wherein n+m=2, with hex-3-yne-2,5-diol, followed by the oxidation of the acetylenic ether obtained by means of ruthenium tetroxide. The compounds of formula (III) can be used as intermediate products for the preparation of 4-hydroxy-2,5-dimethyl-3(2H)-furanone (Furaneol TM ).

RETROVIRAL PROTEASE INHIBITING COMPOUNDS

DIHYDROXYACETONE MONOETHER

Process for the preparation of ketones

Process and intermediates for preparation of 4-acetyl-2-substituted-imidazoles

Process for the production of carbonyl compounds

СПОСОБ ПОЛУЧЕНИЯ СОЕДИНЕНИЯ НА ОСНОВЕ ПИРРОЛО-АМИНО-ПИРИДАЗИНОНА И ЕГО ПРОМЕЖУТОЧНОГО СОЕДИНЕНИЯ

СПОСОБ ПОЛУЧЕНИЯ 5-АЛКОКСИПЕНТАНОНОВ-2

Способ получения 5-алкоксипентанонов-2, общей формулы СН3СО(СН2)3ОR, где R=CnH2n+1(n=1-10), отличающийся тем, что ацетилциклопропан (АЦП) подвергают взаимодействию с одноатомными спиртами (R-OH) в присутствии палладийсодержащего катализатора, взятого в количестве 0,005-0,01 моль по отношению к ацетилциклопропану в водной или водно-эфирной среде при температуре 165-200°С в течение 6-60 ч при следующем мольном соотношении компонентов [АЦП]:[R-ОН]:[Н2O]:[растворитель] = 1:1:(3-8):(0,005:0,01):(2:9), где при R = CnH2n+1(n=1-3) - растворитель соответствующий спирт, а при n ≥ 4 растворителем является диэтиловый эфир.

Арил или адамантилзамещенные алкоксиметилкетоны, проявляющие противосудорожную активность

Способ получения производных арилтиазолов

Изобретение относится к гетероциклическим соединениям, в частности к способу получения 2-(1-н-гек- сил-3-гуанидино)-4-(3-метил-, или амино-1Н-1,2,4-триазол-5-ил)тиазо- лов Cl), (II), которые могут использоваться в медицине. Получение соединений I и II ведут из гидразида 1- -(Т-н-гексил-3-гуанидино) тиазол-4- -карбсновой кислоты и тиоацетамидом или солью 5-метш1Изотиурония при молярном соотношении 1:55-1,5 в среде бутанола при температуре его кипения с обратным холодильником. Выход,%: т.пл. °Cj брутто фор-ла для соединения I 39; 207-209; для соединения II 53; 210-211; С ,. 2 табл. g С ...

Geschützte 3,5-Dihydroxy-2,2-dimethyl-valeronitrile für die Synthese von Epothilonen- und Derivaten und Verfahren zur Herstellung

Die Erfindung betrifft 3,5-Dihydroxy-2,2-dimethyl-valeronitrile für die Synthese von Epothilon- und Epothilonderivaten und Verfahren zur Herstellung dieser neun Zwischenprodukte in der Synthese und die Verwendung zur Herstellung von Epothilonen oder Epothilonderivaten.

ARYLOXYALKYL COMPOUNDS AND THEIR PREPARATION

... 1443612 Aryloxyalkyl compounds STERLING DRUG Inc 11 July 1974 [23 July 1973] 30800/74 Heading C2C Compounds of formula where Alk is alkylene (3-10 C) and with 3-7 C atoms between the terminal bonds, R is alkanoyl (2-6 C) R1 is alkanoyl (2-6 C) or carboalkoxy (2-6 C) and Ar is phenyl or phenyl substituted by 3,4-methylendioxy or one to three monovalent substituents selected from alkyl (1-4 C), alkoxy (1-4 C), halogen, trifluoromethyl, trifluoromethoxy, hydroxy, benzyloxy, carboxy, carboalkoxy (2-4 C), acyloxy (1-10 C), dialkylamino (alkyl 1-4 C) dialkylaminoalkoxy (alkyl 1-4 C, alkoxy 2-4 C), e.g. where R and R1 are both propionyl and Ar is 3-4 methylenedioxyphenyl, 4-hydroxyphenyl, 4-benzyloxyphenyl, halophenyl alkoxyphenyl, phenyl and dialkylamino, are prepared by condensing a compound in an inert solvent under anhydrous conditions, with an alkali metal salt or heavy metal chelate RR1CH 2 or with an alkali metal salt MO-Ar (M is alkali metal) and Ar has above ...

Improvement in acetals of pyruvic aldehyde

Pyruvic aldehyde is heated with a monohydric alcohol, water being distilled from the mixture at a temperature between 50 and 100 DEG C., and an acetal of pyruvic aldehyde recovered by fractional distillation. An inert water-immiscible organic liquid boiling below 100 DEG C., and an acid catalyst may be present. Towards the end of the reaction, a slight rise in temperature is allowable. Removal of the water of reaction may be effected as an azeotrope with the water-immiscible organic liquid, e.g. benzene, diisopropyl ether, ethyl acetate, and ethylene dichloride, or by distillation under reduced pressure. The pyruvic aldehyde may be in monomeric or polymeric form, hydrated or not. A crude aldehyde containing water and monoaldehydes, for example from oxidation of propylene glycol, may be used. Alkyl, chloralkyl, and alkoxyalkyl alcohols such as isopropanol, butanol, 2-ethylhexanol, lauryl alcohol, cyclohexanol, 5-ethylnonanol-2, 7 - ethyl - 2 - methylundecanol - 4,3,9 - diethyltridecanol- ...

PROCESS FOR PRODUCING CARBONYL COMPOUNDS

DIHYDROXYACETONE MONOETHERS

The present invention relates to the use of dihydroxyacetone monoethers as self-tanning substance, to preparations comprising dihydroxyacetone monoethers, and to certain dihydroxyacetone monoethers and to a process for the preparation thereof. 2. Method according to , characterised in that R1 stands for a branched or unbranched alkyl radical having 1 to 20 C atoms , where one or more CHgroups which are not adjacent and are not directly adjacent to the O atom of the formula (I) may be replaced by C═O or —O— , where the radicals may be substituted by one or more OH groups , by one or more cyclic alkyl radicals having 3 to 8 C atoms and/or by one or more aromatic ring systems having 5 to 6 C atoms , where the one or more aromatic ring systems may be substituted by one or more groups selected from —OH and —OR , and where R is as defined in .3. Method according to claim 1 , characterised in that R1 stands for a branched or unbranched alkyl radical having 1 to 20 C atoms claim 1 ,{'sub': '2', 'where one or more CHgroups which are not adjacent and are not directly adjacent to the O atom of the formula (I) may be replaced by C═O or —O—,'}where the radicals may be substituted by one or more OH groups, by one or more cyclic alkyl radicals having 5 to 6 C atoms and/or by one or more aromatic ring systems having 5 to 6 C atoms, where the one or more aromatic ring systems may be substituted by one or more groups —OR,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'and where R is as defined in .'}5. Method according to claim 1 , characterised in that the applying takes place together with DHA and/or erythrulose.7. Composition according to claim 6 , characterised in that the preparation comprises at least one compound of the formula (I) in an amount of 0.01 to 20% by weight claim 6 , based on the total amount of the preparation.8. Composition according to claim 6 , characterised in that the preparation comprises at least one further self-tanning substance.9. Composition ...

PARTIALLY FLUORINATED KETONES AND METHODS OF MAKING AND USING THE SAME

Partially fluorinated ketones are provided that include a terminal alkyl group having from 1 to 6 carbon atoms bonded to a carbonyl group and a hydrofluoroether moiety having from 2 to 4 carbon atoms that contains at least one hydrogen substituent. The hydrofluoroether moiety is bonded to the carbonyl group with a carbon-carbon bond. The ether oxygen is bonded to a carbon atom that is at least two carbon atoms removed from the carbonyl group. Additionally, a fluorinated alkyl group having from 1 to 10 carbon atoms is bonded to the ether oxygen of the hydrofluoroether moiety. These partially fluorinated ketones can be used in a wide variety of electronics applications. 2. A partially fluorinated ketone compound according to claim 1 , wherein the terminal alkyl group is linear claim 1 , branched claim 1 , cyclic claim 1 , or a combination thereof.3. A partially fluorinated ketone compound according to claim 2 , wherein the terminal alkyl group is linear.4. A partially fluorinated ketone compound according to wherein the terminal alkyl group is ethyl or methyl.5. A partially fluorinated ketone compound according to claim 1 , wherein the partially fluorinated hydrocarbon moiety comprises (—CFCFH—) with the (—CF—) bonded to the carbonyl group.6. A partially fluorinated ketone compound according to claim 1 , wherein the fluorinated alkyl group is perfluorinated.10. A partially fluorinated ketone according to claim 9 , wherein each R claim 9 , R claim 9 , and Ris claim 9 , independently claim 9 , linear claim 9 , branched claim 9 , cyclic claim 9 , or a combination thereof.11. A partially fluorinated ketone according to claim 10 , wherein each R claim 10 , R claim 10 , and Ris claim 10 , independently claim 10 , linear.12. A partially fluorinated ketone according to claim 11 , wherein each R claim 11 , R claim 11 , and Ris claim 11 , independently claim 11 , ethyl or methyl.13. A partially fluorinated ketone according to claim 11 , wherein Ris perfluorinated.14. A ...

LUBRICANT COMPOSITIONS

A compound of Formula (I) includes: [L]-[N]—OCHCFO(CFCFO)(CFO)CFCHO—[M], where L is selected from the group consisting of (AA) M is selected from the group consisting of (BB) and N is (CC) where R, R, and Rmay be the same or different, and are selected from the group consisting of hydroxyl, phenyl, piperonyl, carboxylic acid, amide, 2,3-di-hydroxy-1-propoxyl, acetamide, methacrylate, methyl methacrylate and glycidyl ether; and where 1=0, 1, or 2, m=0, 1, or 2, n=1 or 2, and the ratio of p to q is from about 0.1 to 3.0. 4. The compound of claim 1 , wherein 1 is 1.5. The compound of claim 1 , wherein m is 1.6. The compound of claim 1 , wherein n is 1.7. The compound of claim 1 , wherein Ris hydroxyl.8. The compound of claim 1 , wherein Ris hydroxyl.9. The compound of claim 1 , wherein Ris hydroxyl.10. A compound of Formula 2 claim 1 ,{'br': None, 'sub': 2', '2', '2', '2', '2', '2', 'p', '2', 'q', '2', '2', '2', '2', '2', '2', '2', '2', 'p', '2', 'q', '2', '2', '2', '2, '[(HO)CHC(OH)HCH]—[OCHCFO(CFCFO)(CFO)CFCHOCHC(OH)HCH]—OCHCFO(CFCFO)(CFO)CFCHO—[CHC(OH)HCH(OH)]\u2003\u2003Formula 2'}where the ratio of p to q is from about 0.1 to 3.0.14. The apparatus of claim 1 , wherein 1 is 1.15. The apparatus of claim 1 , wherein m is 1.16. The apparatus of claim 1 , wherein n is 1.17. The apparatus of claim 1 , wherein Ris hydroxyl.18. The apparatus of claim 1 , wherein Ris hydroxyl.19. The apparatus of claim 1 , wherein Ris hydroxyl. 1. FieldThe present disclosure relates generally to lubricant compositions.2. BackgroundHigh performance lubricants are used for a large number of diverse applications. The requirements of these lubricants are becoming more demanding due to a variety of factors, including miniaturization of electronic and mechanical devices, use of high temperature operating conditions, an increased expectation of product lifetimes, and an expanding range of operating and storage environments.One application in which high performance lubricants are subject to ever ...

RESIST COMPOSITION AND PATTERNING PROCESS

A resist composition comprising a base polymer and a quencher in the form of an ammonium salt compound having an iodized aromatic ring and a tertiary ester structure offers a high sensitivity and minimal LWR or improved CDU, independent of whether it is of positive or negative tone. 2. The resist composition of claim 1 , further comprising an acid generator capable of generating a sulfonic acid claim 1 , imide acid or methide acid.3. The resist composition of claim 1 , further comprising an organic solvent.5. The resist composition of which is a chemically amplified positive resist composition.6. The resist composition of wherein the base polymer is free of an acid labile group.7. The resist composition of which is a chemically amplified negative resist composition.8. The resist composition of claim 1 , further comprising a surfactant.10. A process for forming a pattern comprising the steps of applying the resist composition of to form a resist film on a substrate claim 1 , exposing the resist film to high-energy radiation claim 1 , and developing the exposed resist film in a developer.11. The process of wherein the high-energy radiation is ArF excimer laser radiation of wavelength 193 nm or KrF excimer laser radiation of wavelength 248 nm.12. The process of wherein the high-energy radiation is EB or EUV of wavelength 3 to 15 nm. This non-provisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No. 2019-012754 filed in Japan on Jan. 29, 2019, the entire contents of which are hereby incorporated by reference.This invention relates to a resist composition and a pattern forming process.To meet the demand for higher integration density and operating speed of LSIs, the effort to reduce the pattern rule is in rapid progress. In particular, the enlargement of the logic memory market to comply with the wide-spread use of smart phones drives forward the miniaturization technology. As the advanced miniaturization technology, manufacturing of ...

Insect juvenile hormone prepn - and intermediate allyl - alcohols and ketones

Juvenile hormone (methyl trans, or trans, cis-10-epoxy-7-ethyl-3,11-dimethyl-2,6-tridecanoate) and its homologues of formula (I) are produced by the reaction scheme. SN1 right arrow halogenation reduction right arrow epoxidation right arrow (R1-R4 = lower alkyl). New intermediates in the prodn. of (I) of formula (II) and (III) are also claimed. CH2= -X-(CH2)2-Y-Z Hal-CH2- =CH-(CH2)2-R2-A in which R3 is H, hydrocarbon or halogen, X is -CHOH- or CO, Y is a divalent hydrocarbon radical, Z is a functional group, R1 and R2 are hydrocarbon, and A is a functional group.

Fluoroketone compounds

The present invention relates to new fluoroketone compounds from the groups monobromoperfluoroketones, monohydromonobromoperfluoroketones, (perfluoroalkoxy)monobromoperfluoroketones, (fluoroalkoxy)monobromoperfluoroketones, and monochloromonobromoperfluoroketones. These fluoroketone compounds have utility in preventing, controlling and extinguishing fire. These fluoroketone compounds have further utility as additives to reduce or eliminate the flammability of normally flammable working fluids such as refrigerants, foam blowing agents, solvents, aerosol propellants, and sterilants.

Manufacture of ketone derivatives of polyoxypropylene glycols

MANUFACTURE OF KETONE DERIVATIVES OF POLYOXYPROPYLENE GLYCOLS (Docket No. 80,902-F) ABSTRACT OF DISCLOSURE Polyoxypropylene diketones are prepared by initially adding predetermined amounts of glacial acetic acid, a poly-oxypropylene glycol and, optionally, water, to a reaction zone and thereafter adding an aqueous solution of an alkali metal or an alkaline earth metal hypochlorite oxidant to the reaction zone with agitation under reaction conditions including a temperature of about 10° to about 50°C., a pressure of about 0 to 1,000 psig. and a total reaction time of about 0.5 to 20 hours, whereby said polyoxypropylene glycol will be substantially selectively converted to the said corresponding diketone, and recovering said diketone.

Fluoroether diketones for high temperature heat transfer

Fluoroether diketones are provided that can be useful in apparatuses that includes a device and a mechanism for transferring heat. The provided fluoroether diketones are stable at temperatures above 175° C., are environmentally friendly, and are economical to produce. The provided apparatuses can be useful for vapor phase soldering of electronic devices.

Luciferin luminescent substrate of marine ostracod crustacean and method for production thereof

The present invention relates to marine ostracod crustacean luciferin stabilization composition comprising marine ostracod crustacean luciferin or an analog thereof and an ascorbic acid or salts thereof.

Process for preparing fluoroaliphatic ether-containing carbonyl fluoride compositions

Fluoroaliphatic ether-containing carbonyl fluoride compounds are prepared by reacting a fluorinated carbonyl compound with hexafluoropropylene oxide in the presence of at least one catalyst selected from potassium iodide, potassium bromide, cesium iodide, cesium bromide, rubidium iodide, and rubidium bromide.

Malodor counteracting compositions

一种恶臭冲消组合物，包括至少一种式(A)的化合物和至少一种式(B)的化合物其中n、X、Y和R 1 －R 4 如说明书所定义。

PROCESS FOR THE PREPARATION OF CARBONYL COMPOUNDS CONTAINING AT LEAST ONE FUNCTIONAL GROUP IN ADDITION TO CARBONYL GROUPS, AND COMPOUNDS THUS OBTAINED

Procédé pour la préparation de composés carbonyle contenant au moins un groupe fonctionnel en plus des groupes carbonyle, et composés ainsi obtenus. Le procédé décrit par la présente invention consiste à faire réagir le composé carbonyle concerné avec un composé contenant au moins une liaison insaturée et un ou plusieurs groupes fonctionnels, en présence de peroxyde comme catalyseur. Application pour la préparation de la 6-méthylheptane-6-éthoxy-2-one, du benzoate de 6-méthylheptane-2-one-6-yle et de dérivés de la 6-méthylheptane-6-ol-2-one dans lesquels le groupe hydroxyle a été éthérifié ou estérifié.

Process for the preparation of 3-ketobutyraldehyde acetals

Oxygen-containing aliphatic compounds and their use as intermediate products for the preparation of 4-hydroxy-2,5-dimethyl-3 (2H) -furanone

Methods using fluoroketones for: extinguishing fire; preventing fire; and reducing or eliminating the flammability of a flammable working fluid

The present invention relates to methods of using at least one fluoroketone selected from monobromoperfluoroketones, monohydromonobromoperfluoroketones, (perfluoroalkoxy)monobromoperfluoroketones, (fluoroalkoxy)monobromoperfluoroketones, and monochloromonobromoperfluoroketones for i) extinguishing fire by applying to the fire such a fluoroketone, ii) preventing fire in an air-containing enclosed area containing combustible materials by introducing into the area such a fluoroketone and maintaining the fluoroketone in an amount sufficient to suppress combustion of combustible materials in the enclosed area, and iii) reducing or eliminating the flammability of a flammable working fluid, by mixing between about 0.1 to about 99 percent by weight of such a fluoroketone with the flammable working fluid.

Patent FR2095340B1

PROCESS FOR THE PREPARATION OF CARBONYL COMPOUNDS, CONTAINING AT LEAST THE CARBONYL GROUP AT LEAST A FUNCTIONAL GROUP, AND THE CONNECTIONS SO OBTAINED.

Fluoroketone compounds

The present invention relates to new fluoroketone compounds from the groups monobromoperfluoroketones, monohydromonobromoperfluoroketones, (perfluoroalkoxy)monobromoperfluoroketones, (fluoroalkoxy)monobromoperfluoroketones, and monochloromonobromoperfluoroketones. These fluoroketone compounds have utility in preventing, controlling and extinguishing fire. These fluoroketone compounds have further utility as additives to reduce or eliminate the flammability of normally flammable working fluids such as refrigerants, foam blowing agents, solvents, aerosol propellants, and sterilants.

Reaction of hypochlorites with polyoxypropylene glycols

Polyoxypropylene diketones having a molecular weight of 200 to 3000 are obtained by oxidation of corresponding polyoxypropylene glycols with an alkali metal or alkaline earth metal hypochlorite in the presence of a carboxylic acid having a pK of less than 4.5 and a water solubility at 25°C of more than 1%. The acid can be selected from benzoic acid, chloro-substituted benzoic acids, oxalic acid and glycolic acid.

Cypridina luciferin stabilization composition and method for storing cypridina luciferin

本发明提供一种海萤荧光素稳定化组合物及保存海萤荧光素的方法。所述海萤荧光素稳定化组合物包含海萤荧光素或其类似物，以及抗坏血酸或其盐。所述保存海萤荧光素的方法包括：将海萤荧光素或其类似物在抗坏血酸或其盐的存在下进行保存。本发明还提供一种用于海萤生物发光体系的试剂盒，其中所述试剂盒包含海萤荧光素或其类似物，以及抗坏血酸或其盐。本发明还提供一种用于降低海萤生物发光体系的背景的方法，包括：将抗坏血酸或其盐应用到所述海萤生物发光体系。本发明还提供一种测定海萤类生物发光的方法，其特征在于，在海萤荧光素酶和海萤荧光素或其类似物的生物发光测定系统中，在抗坏血酸或其盐的存在下测定生物发光。

Ketone-terminated polyoxyalkylene compounds

KETONE-TERMINATED POLYOXYALKYLENE COMPOUNDS (D#81,007-F) ABSTRACT OF THE DISCLOSURE Mono-, di- and tri-ketones of polyoxyalkylene compounds prepared by a method whereby the terminal hydroxyl groups of polyoxyalkylene compounds are oxidized to ketone groups with an alkali metal or an alkaline earth metal hypochlorite oxidant in the presence of acetic acid are disclosed. These compounds are useful for preparing surface active agents or they may be reacted with amines to provide fuel additives.

３−クロル−１，１−ジアルコキシ−アセトン及びその製造法

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Process for producing carbonyl compounds

Forfarande for framstellning av karbonylforeningar

Verfahren zur Herstellung von Carbonylverbindungen

Manufacture of carbonyl compounds

[UNK]

Procedimento per la preparazione di composti carbonilici contenenti almeno un gruppo funzionale oltre al carbonilico, e composti cosi'ottenuti.

Verfahren zur Gewinnung von Methylglyoxa lacetal

Octadionols.

[UNK]

Verfahren zur herstellung von carbonylverbindungen

Verfahren zur herstellung von glyoxal, alkylglyoxalen und von deren acetalen.

Process for the production of glyoxal, alkylglyoxales and of their acetales

글리옥살, 알킬글리옥살 및 이들의 아세탈의 제조방법

내용 없음