СПОСОБ ПОЛУЧЕНИЯ ФТОРИРОВАННОГО СПИРТА

Изобретение относится к усовершенствованному способу получения фторированного спирта высокой чистоты с хорошим выходом, который используется в качестве растворителя. Способ включает взаимодействие метанола с тетрафторэтиленом или гексафторпропиленом в присутствии алкилпероксида с получением фторированного спирта формулы (1): H(CFR 1 CF 2 ) n CH 2 OH,(1),где n равно 1 или 2, и когда n равно 1, R 1 представляет собой F или CF 3 , а когда n равно 2, R 1 представляет собой F, где в указанном способе реакционную жидкость после завершения реакции перегоняют в дистилляционной колонне в присутствии воды и HF с разделением на фракцию, отгоняемую из верхней части дистилляционной колонны и содержащую спирт, образующийся из алкилпероксида, метанол, воду и HF, и кубовую жидкость, содержащую фторированный спирт формулы (1), а затем кубовую жидкость очищают для выделения фторированного спирта формулы (1). 6 з.п. ф-лы, 3 ил.

СПОСОБ ПОЛУЧЕНИЯ ФТОРСПИРТА (ВАРИАНТЫ)

FIELD: organic chemical, chemical technology. SUBSTANCE: invention relates to synthesis of fluoroalcohol of the formula (I): H(CFR 1 CF 2 ) n CH 2 OH where R 1 means F or CF 3 when n = 1; R 1 means F when n = 2. Process can be carried out in two variants. The first variant involves reaction of methanol with tetrafluoroethylene or hexafluoropropylene in the presence of free radical producing agent. Process involves feeding the reaction mixture into distillation column, methanol driving off from upper part of distillation column and removal of lower fraction containing fluoroalcohols from distillation column bottom. Then method involves removal of by-side fraction containing water and HF from distillation column, methanol back feeding from upper part of distillation column for recycle and treatment of bottom fraction for extraction of fluoroalcohol presented as formula (I). The second variant is similar to the first one but process is carried out by reaction of methanol with tetrafluoroethylene and hexafluoropropylene and separation of reaction mixture is carried out in two distillation columns. The bottom fraction from the first fractionating column has water, HF and fluoroalcohol presented by formula (I). Upper fraction from the second distillation column has water and HF and bottom fraction has fluoroalcohol presented by formula (I). Methanol from upper part of the first distillation column is fed back to reactor for recycle. EFFECT: improved method of synthesis, enhanced extraction of methanol. 2 cl, 3 dwg, 2 ex сбУэЭ9 Ес ПЫ рэ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (13) ВО’ 2 166 495 ^^ С1 57 МК’ С 07С 31/38, 29/44 (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 99119500/04, 08.09.1999 (24) Дата начала действия патента: 08.09.1999 (30) Приоритет: 15.03.1999 УР 67/14/1999 (43) Дата публикации заявки: 10.05.2001 (46) Дата публикации: 10.05.2001 (71) Заявитель: ДАИКИН ИНДАСТРИЗ, ЛТД. ()Р) (72) Изобретатель: ТАКАКИ Содзи ( ...

ОДНОСТАДИЙНЫЙ СПОСОБ ПОЛУЧЕНИЯ 1,3-ПРОПАНДИОЛА ИЗ ЭТИЛЕНОКСИДА И СИНТЕТИЧЕСКОГО ГАЗА С ПОМОЩЬЮ КАТАЛИЗАТОРА С N-ГЕТЕРОЦИКЛИЧЕСКИМ ЛИГАНДОМ

... 1. Композиция катализатора, содержащая a) компонент кобальта, включающий в себя одно или несколько нелигированных соединений карбонила кобальта; и b) компонент рутения, включающий в себя соединение карбонила рутения, лигированное N-гетероциклическим лигандом, выбранным из группы, состоящей из бидентатных и мультидентатных N-гетероциклических лигандов. 2. Композиция по п.1, где N-гетероциклический лиганд представляет собой диазин или бензодиазин. 3. Композиция по п.2, где N-гетероциклическое соединение выбирается из группы, состоящей из пиримидина, пиразина, пиридазина, хиназолина и хиноксалина. 4. Композиция по п.1, где N-гетероциклическое соединение представляет собой биспиридин. 5. Композиция по п.4, где N-гетероциклическое соединение выбирается из группы, состоящей из 2,2'-дипиридила (DIPY), 2, 2'-бипиримидина (BPYM), 1,10-фенантролина (PHEN), ди-2-пиридил кетона, 4,4'-диметил-2,2'-дипиридила, 5,6-диметилфенантролина, 4,7-диметилфенантролина, 2,2'-бихинолина, неокупроина и 2, 2'-дипиридиламина ...

ОДНОСТАДИЙНЫЙ СПОСОБ ПОЛУЧЕНИЯ 1,3-ПРОПАНДИОЛА ИЗ ЭТИЛЕНОКСИДА И СИНТЕТИЧЕСКОГО ГАЗА С ПОМОЩЬЮ КАТАЛИЗАТОРА НА ОСНОВЕ КОБАЛЬТА-ЖЕЛЕЗА

... 1. Композиция катализатора, содержащая a) компонент кобальта; и b) компонент железа, лигированный лигандом, выбранным из группы, состоящей из остатков N-гетероцикла, фосфина и порфорина. 2. Композиция по п.1, где компонент кобальта выбирается из солей кобальта, которые восстановлены до состояния нулевой валентности путем тепловой обработки в присутствии синтетического газа. 3. Композиция по п.1 или 2, где компонент железа представляет собой карбонил железа или металлоорганическое соединение железа. 4. Композиция по п.1 или 2, где лиганд выбирается из группы, состоящей из монодентатных, бидентатных и мультидентатных N-гетероциклических лигандов. 5. Композиция по п.1 или 2, где лиганд представляет собой лиганд третичного дифосфина общей формулы RRP-Q-PR'R', где каждая группа R и R', независимо или в сочетании, представляет собой углеводородный остаток, содержащий до 30 атомов углерода, и Q представляет собой органическую мостиковую группу из 2-4 атомов в длину. 6. Композиция по п.1 или 2, ...

Способ получения 4-(4-бифенилил)1-бутанола

СПОСОБ ПОЛУЧЕНИЯ 4-

VERFAHREN ZUR TELOMERISATION VON OLEFINEN MIT SEKUNDAEREN ALKOHOLEN

VERFAHREN ZUR HERSTELLUNG VON HEXAMETHYLOLBENZEN

VERFAHREN ZUR HERSTELLUNG VON ALKOHOLEN UND/ODER ALDEHYDEN AUS OLEFINEN

PROCESS FOR PREPARING ADDUCTS OF ALCOHOLS, ETHERS AND ESTERS WITH 1,2-DICHLORODIFLUOROETHYLENE

PRODUCTION OF ALKANOLS

LOW MOLECULAR WEIGHT TERT.-ALCOHOL TELOMERS

... 1485194 Olefin-tertiary alcohol telomers DART INDUSTRIES Inc 18 March 1975 [20 March 1974] 11235/75 Heading C3P [Also in Division C2] A low molecular weight tertiary alcohol telomer at least 60% by weight of which boils at less than 245‹ C. at 0À5 mm. Hg is prepared by reacting a secondary alcohol telogen wherein R 1 and R 2 each independently represent C 1 -C 8 alkyl or phenyl or together represent an alkylene group, with a monoolefinically unsaturated hydrocarbon taxogen H 2 C=CHR wherein R represents a hydrogen atom or a C 1 -C 8 alkyl or phenyl group, in the presence of a catalytically effective amount of a free radical generating initiator in a reaction zone, the telogen : taxogen ratio in the reaction zone being greater than 1 : 1, at a temperature of 125-275‹ C. and a pressure of 2000- 10,000 p.s.i.g. The initiator is for example a peroxide, an azo compound or oxygen; an activator may also be present, e.g. a ferrous salt, an amine, a mercaptan or cobalt naphthenate. The reaction ...

Manufacture of higher alcohols.

IMPROVED PROCEDURE FOR THE SYNTHESIS OF INSATIATED ALCOHOLS

TELECHELE EMISSIONS OLIGOMERE AND FROM IT DERIVATIVES OF POLYMERS

PROCEDURE FOR THE PRODUCTION OF OCTADIENOLEN

CYCLOPROPANDERIVATE.

PROCEDURE FOR CYCLOTRIMERISIERUNG OF ALKINES IN AQUEOUS SOLUTIONS

SYNTHESIS OF BUTANDIOLGEMI.

PROCEDURE FOR THE PRODUCTION OF 4,4,4 - TRI CHLORINE BUTANOL

Intermediates for use in the preparation of vitamin E

Process for producing fluoroalkanol

Cross-coupling reaction of organosilicon nucleophiles

Process for producing fluorinated alcohol

Process for production of fluoroalcohol

INTERMEDIATE HALOPHENYL DERIVATIVES AND THEIR USE IN A PROCESS FOR PREPARING AZOLE DERIVATIVES

Novel halophenyl derivatives of the general formula (I), wherein R1 is halogen, a leaving group or 1H-1,2,4-triazol-l-yl and R2 is ethynyl or carboxy, X1 is halogen and X2 and X3 are each independently hydrogen or halogen, and their manufacture are described. They are intermediates for manufacturing azole derivatives of the general formula (V) which are valuable medicaments useful for treating systemic mycoses.

HOMOLOGATION PROCESS MAKING HIGHER ALCOHOLS

D15748 A liquid phase process for the manufacture of C2+ alkanols by the reaction of hydrogen with carbon monoxide is the presence of a catalyst containing ruthenium, cobalt, a halide-containing compound, and an aromatic compound substituted in adjacent ring positions by nitrogen atoms. The process embraces the use of rhodium as an additive to the catalyst system.

"4-(4-BIPHENYL)-1-BUTANOL"

INTERMEDIATES FOR USE IN THE PREPARATION OF VITAMIN E

Novel intermediate compounds which can be used in the preparation of phytone and Vitamin E and a process for the preparation thereof. A process for the preparation of phytone and Vitamin E from these compounds is also claimed.

METATHESIS SYNTHESES OF PHEROMONES OR THEIR COMPONENTS

The present invention relates to metathesis syntheses for insect sex- attractant pheromones or their components, such as E-5-decenyl acetate, the major component of the Peach Twig Borer pheromone; (5R, 6S)-6-acetoxy-5- hexadecanolide, the mosquito oviposition attractant pheromone; E9, Z11- hexadecadienal, the pecan nut casebearer moth pheromone; 9-tetradecenyl formate, an analog of the Diamondback Moth (DBM) pheromone; 11-tetradecenyl acetate, the Omnivorous Leafroller (OLR) pheromone; E-4-tridecenyl acetate, the major component of the Tomato Pinworm (TPW) pheromone; E,E-8,10- dodecadienol, the Codling Moth (CM) pheromone. The syntheses preferably employ a Class I-IV metathesis catalyst, entail few reaction steps, use generally commercially available starting materials, and have relatively short process times. These syntheses produce good yields without the need for expensive or sophisticated equipment. The invention also provides an inexpensive route for producing omega-haloalkenols by ...

PROCESS FOR PREPARING ORGANIC COMPOUNDS

Process for preparing a compound of the formula (I) in which R1 and R2 are each independently H, C1-C8-alkyl, halogen, polyhalo-C1-C8-alkoxy, polyhalo-C1-C8-alkyl, C1-C8-alkoxy, C1-C8-alkoxy-C1-C8-alkyl, or C1-C8-alkoxy-C1-C8-alkoxy, where R1 and R2 are not both H, and R3 is C1-C8-alkyl, which is characterized in that a) a compound of the formula (II) in which R1 and R2 are each as defined above and X is Br, I, triflate, toyslate or mesylate is reacted with prop-2-yn-1-ol to give the compound of the formula (III), b) the compound of the formula (III) is reacted with an alkyl-metal compound in which "alkyl" is as defined above for R3 to give a compound of the formula (I).

PROCESS FOR THE PREPARATION OF PRIMARY AND SECONDARY FLUORINE-CONTAINING ALCOHOLS

HOE 91/F 908 of the disclosure Process for the preparation of primary and secondary fluorine-containing alcohols A process is described for the preparation of fluoroalcohols of the formula below Rf-CH2-CH2-?H-OH in which Rf is a perfluoroalkyl radical having 1 to 20 carbon atoms and R is hydrogen or an alkyl radical having 1 to 5 carbon atoms, by reaction of a perfluoroalkylethylene, Rf-CH=CH2, and an n-C1 to C6-alkanol in the presence of a free radical initiator, the perfluoroalkylethylene, the alkanol and the free radical initiator being used in the molar ratio of 1 to 20-50 to 0.002-0.2. In the novel process, in addition, the reaction is carried out in a specific manner and under specific reaction conditions. The fluoroalcohols given are obtained in high yield.

LIQUID COMPOSITIONS AND SUPPORTED PERFLUORINATED ION-EXCHANGE POLYMERS

... 2064187 9101805 PCTABS00003 Liquid compositions of perfluorinated ion-exchange polymers are disclosed along with processes for making such compositions, use of the compositions in preparing supported polymers, and use of the supported polymers in hydrocarbon conversion processes.

Procédé de préparation d'alcools aliphatiques supérieurs

PROCEDURE FOR THE PRODUCTION OF ALDEHYDES AND KETONEN.

Process for the preparation of a new diol and use of this diol for the preparation of squalane

A 10,15-alkynediol containing in its molecule 30 carbon atoms with a triple bond and 1 to 5 double bonds, one of which is conjugated with the triple bond, is obtained by coupling two molecules of a 3-alkynol containing 15 carbon atoms and the chain of which carries methyl groups in positions 3, 7 and 11, in the presence of a catalyst consisting of a complex of a halide of a metal of group VIII coordinated with an organophosphorus compound. The diol thus obtained is a new intermediate compound which can be converted to squalane by hydrogenation of the unsaturations and dehydration or hydrogenolysis of the hydroxyl groups. Squalane is used as a component of cosmetic products.

PROCEDURE FOR THE PRODUCTION OF ARYL-SUBSTITUTED ALCOHOLS.

DERIVATIVES OF 6 - KhROMANOLA AND THEIR SYNTHESIS

PROCESS FOR PREPARING ALCOHOLS AND/OR ALDEHYDES FROM OLEFINS

(6R,10R)-6,10,14-ТРИМЕТИЛПЕНТАДЕКАН-2-ОН, ПОЛУЧАЕМЫЙ ИЗ 6,10-ДИМЕТИЛУНДЕЦ-5-ЕН-2-ОНА ИЛИ 6,10-ДИМЕТИЛУНДЕКА-5,9-ДИЕН-2-ОНА

Изобретение относится к способу получения (6R,10R)-6,10,14-триметилпентадекан-2-она многостадийным синтезом из 6,10-диметилундец-5-ен-2-она или 6,10-диметилундека-5,9-диен-2-она. Данный способ обладает большим полезным эффектом, поскольку предлагает эффективный путь получения желаемого хирального продукта из смеси стереоизомеров исходного продукта.

METHOD OF PRODUCING ALCOHOLS AND/OR ALDEHYDES FROM OLEFINS

Cyclopropanation process

A method for the preparation of cyclopropyl carbinols by cyclopropanation of unsaturated alcoholates, utilising a reagent system selected from (A) magnesium metal and dibromomethane, and (B) dibromomethane and a tertiary Grignard reagent, the reaction being carried out in the presence of an ether solvent. The process is useful, for example, for the preparation of ingredients for the flavour and fragrance industry.

METHOD FOR PRODUCING HIGHER ALCOHOLS BY FORMING HOMOLOGS

PROCEDE DE PREPARATION D'HYDROCARBURES ACETYLERIQUES VRAIS A CHAINE PERFLUOREE

PROCEDE DE PREPARATION DES HYDROCARBURES ACETYLENIQUES VRAIS A CHAINE PERFLUOREE CARACTERISE PAR UNE DEHYDROIODATION PAR LA POTASSE EN MILIEU ALCOOLIQUE DE LA IODHYDRINE: (CF DESSIN DANS BOPI) OU R EST UNE CHAINE PERFLUOREE CF- DROITE OU RAMIFIEE ET R ET R SONT DES RADICAUX ALKYLES IDENTIQUES OU DIFFERENTS, SUIVIE DE LA DISTILLATION EN PRESENCE DE SOUDE SOLIDE DE L'ALCOOL ACETYLENIQUE OBTENU.

ALKYNE-DIOLS-10,15, THEIR METHOD OF PREPARATION AND THEIR APPLICATION TO THE PREPARATION OF SQUALANE

METHOD OF PREPARATION OF HEXYNE-3 OL-1

A method for preparing higher alcohols

PROCESS FOR COPRODUCTION OF NORMAL BUTANOL AND ISOBUTYRALDEHYDE

The invention relates to a process for the coproduction of normal butanol and isobutyraldehyde by reacting propylene with hydrogen and carbon monoxide. The process comprises the step (A) of reacting propylene with hydrogen and carbon monoxide in a reactor (2) in the presence of a catalyst containing a compound of a Group 8, 9 or 10 metal element of the periodic table, the step (B) of withdrawing an overhead product containing normal butyraldehyde and so on and a sidestream containing isobutanol and so on from the reaction product stream with a separator (the first distilling column) (5), and the step (C) of separating the overhead product into normal butyraldehyde and isobutyraldehyde by fractional distillation with a separator (the second distilling column) (10) while separating the sidestream into isobutanol and normal butanol by fractional distillation with a separator (the third distilling column) (14), and withdrawing them separately. © KIPO & WIPO 2009 ...

PREPARATION METHOD OF ACETYLENE ALCOHOL COMPOUND USING CONTINUOUS PROCESS

PURPOSE: A manufacturing method of an acetylene alcohol compound by ethynylation using a heterogeneous strongly basic anion exchange resin is provided which produces the acetylene alcohol compound under the reduced reaction condition using the minimum quantity of alkali metal hydroxide without using liquid ammonia. CONSTITUTION: Acetylene and ketone containing -CH2-CO-CH2- group are reacted in the presence of a strongly basic quaternary ammonium hydroxide anion exchange resin and an aprotic solvent in the molar ratio of acetylene, ketone and the solvent of 1.0:0.2-3.0:1.0-4.0 at 20-50°C at pressure of 10-30 kg/cm^2 in LHSV = 0.1-5.0 to give the title compound. Acetylene is melted in a solvent at 23-25°C at pressure of 6-10 kg/cm^2 in a first reactor(10). The acetylene saturated solution is sent to a mixer(30) by a first metering pump(20), while ketone is sent to the mixer(30) by a second metering pump(40). The reaction mixture is sent to a second reactor(60) and reacted at 20-50°C at pressure ...

PROCESS FOR THE HYDRATION AND OLIGOMERISATION OF OLEFINS

A product mixture containing oligomers of alkenes, ethers and optionally alcohols is prepared by the hydration and oligomerisation of the alkenes by passing the alkenes and water in a molar ratio of alkenes to water of about 3:1 to 90:1 under hydration conditions over an acid hydration catalyst, particularly a cation exchange resin. The process can be controlled so as to produce less than 0.5% by wt water in the liquid reaction product, at least 40% by wt of oligomers and less than 5% by wt of material of C12 and higher.

PALLADIUM CATALYZED ALKYLATIVE CYCLIZATION USEFUL IN SYNTHESIS OF VITAMIN D AND ANALOGUES

An alkylative cycloaddition method is provided that is particularly useful for the synthesis of many of the Vitamin D analogues with differing side chains. Thus, a preferred synthesis is of Vitamin D analogues having a side chain R1 where a substantially geometrically pure first precursor having structure (I), and a second precursor are provided, the second precursor being a 1,7 enyne. These precursors are reacted in the presence of a palladium catalyst to form compounds having structure (II), where R2 is hydrogen, hydroxyl, lower alkoxy, fluorine, or a protecting group, and R3 is hydrogen, hydroxyl, lower alkoxy, fluorine, or a protecting group.

PROCESS FOR PRODUCING FLUORINATED ALCOHOL

A process for producing a high-purity fluorinated alcohol in a satisfactory purification yield. The process comprises reacting methanol with tetrafluoroethylene or hexafluoropropylene in the presence of an alkyl peroxide to produce a fluorinated alcohol, wherein the liquid reaction mixture obtained after completion of the reaction is distilled in the presence of both water and HF to separate the mixture into a fraction containing an alcohol derived from the peroxide and a bottom containing the fluorinated alcohol and the bottom is purified to recover the fluorinated alcohol.

4-(4)-BIPHENYLYL)-1-BUTANOL

Alkylation of aromatics using a metal cation-modified friedel-crafts type catalyst

A process for the alkylation of aromatic compounds with an olefin or alkyl halide having from 1 to 24 carbon atoms utilizes a novel catalyst comprising: a) a refractory inorganic oxide, b) the reaction product of a first metal halide and bound surface hydroxyl groups of the refractory inorganic oxide, c) a second metal cation, and d) optionally a zerovalent third metal. The refractory inorganic oxide is selected from the group consisting of alumina, titania, zirconia, chromia, silica, boria, silica-alumina, and combinations thereof and the first metal halide is a fluoride, chloride, or bromide of aluminum, gallium, zirconium, or boron. The second metal cation is selected from the group consisting of: monovalent metal cations in an amount from 0.0026 up to about 0.20 gram atoms per 100 grams refractory inorganic oxide for lithium, potassium, cerium, rubidium, silver, and copper, and from 0.012 to about 0.20 gram atoms for sodium; and alkaline earth metal cations in an amount from about 0.0013 ...

PROCESS FOR CONTINUOUS PRODUCTION OF OCTA-2,7-DIEN-1-OL

Process for the preparation of an isomeric mixture of 1-(2,6,6-trimethylcyclohexyl)-hexane-3-ol

Process for preparing C4-oxygenates

Preparation of C4-oxygenates, in particular 2-butanol and butanone, which comprises the reaction of ethene with ethanol to form 2-butanol under conditions under which ethanol is present in the supercritical state.

HYDROGENATION AND ETHYNYLATION CATALYSTS

A process for preparing a catalyst includes impregnating a metal oxide carrier with an aqueous solution to form an impregnated carrier; drying the impregnated carrier to form a dried, impregnated carrier; and heat-treating the dried, impregnated carrier in air to form the catalyst; wherein: the aqueous solution includes a copper salt; and from about 3 wt % to about 15 wt % of a C3-C6 multifunctional carboxylic acid; and the catalyst includes from about 5 wt % to about 50 wt % copper oxide.

Process for the preparation of 2-methyl-4-phenyl-2-pentanol

Process for producing fluoroalcohol

The invention relates to a method for manufacturing a fluoroalcohol represented by formula (1) (wherein R1 represents F or CF3, when n=1; R1 represents F, when n=2) by reacting methanol with tetrafluoroethylene or hexafluoropropylene in the presence of a free radical generator, wherein the method comprises the steps of: feeding a reaction mixture into a distillation column; distilling off methanol from the top of the distillation column; withdrawing a bottom fraction comprising the fluoroalcohol from the bottom of the distillation column; removing a fraction comprising water and HF from the distillation column by side cut; feeding methanol from the top of the distillation column back into a reactor for recycling; and purifying the bottom fraction to recover the fluoroalcohol represented by formula (1).

BENZYL-BIPHENYLS AND ANALOGOUS COMPOUNDS AND THE APPLICATION THEREOF IN ORDER TO TREAT ARTERIOSCLEROSIS AND DYSLIPIDAEMIA

The invention relates to benzyl-biphenyls and analogous compounds thereof which are produced first by reacting ¿ and ß-unsaturated ketones to form corresponding substituted and conjugated dienes, and afterwards said dienes are cyclized with acetylene derivatives. The resulting cyclohexane dienes are oxidized to form aromatic compounds and/or are varied in available substituents through usual methods. The compounds are suited for additives in medicaments, especially in medicaments for treating arteriosclerosis and dyslipidaemia.

METHOD FOR PRODUCING (S)-(-)-DIHYDRO-ALPHA-DAMASCOL

PURPOSE: To obtain (s)-(-)-dehydro-α-damascol, a synthetic intermediate for (s)-(-)-α-damascone useful as a material of compounding perfume for foods or perfume and perfumed cosmetic, having a fruity or flowery fragrance and flavor. CONSTITUTION: (R)-(+)-2,4,4-trimethyl-2-cyclohexen-1-ol of formula 5 is reacted with a 1-halogeno-2-butyne to give butynyl ether of formula 4, which is subjected to Wittig rearrangement reaction to synthesize (s)-(-)-dehydro-α-damascol of formula 3 in high yield and in high optical purity. COPYRIGHT: (C)1993,JPO&Japio ...

СПОСОБ ПОЛУЧЕНИЯ ФТОРАЛКАНОЛА

FIELD: chemical technology. SUBSTANCE: invention relates to the improved and selective method for preparing fluoroalkanol of high purity degree. Method for preparing fluoroalkanol of the formula (1): H-(R f CFCF 2 ) n -CR 1 R 2 -OH (1) involves carrying out the reaction between polyfluoroolefin of the formula (2): R f CF=CF 2 (2) and alkanol of the formula (3): CHR 1 R 2 -OH (3) in the presence of a radical initiating agent wherein polyfluoroolefin of the formula (2), alkanol of the formula (3) and a radical initiating agent are fed into reactor continuously wherein they react at temperature 105-135°C and synthesized fluoroalkanol of the formula (1) is removed. Symbols in formulae (1), (2) and (3) have the following values: R f means fluorine atom or (C 1 -C 4 )-polyfluoroalkyl group; each R 1 and R 2 means independently hydrogen atom or (C 1 -C 3 )-alkyl group; n is a whole number in the range from 1 to 4. Synthesized fluoroalkanol is used in preparing, for example, water-repellent or hydrophilyzing additives, surface-active substance or color developer. EFFECT: improved preparing method. 7 cl, 1 dwg, 5 ex

СПОСОБ ПОЛУЧЕНИЯ γ -ДИОЛОВ

Использование: в качестве полупродуктов в синтезе конденсационных смол, полимерных материалов, полиуретанов, полиэфиров, полиамидов. Сущность изобретения: продукт гамма - диолы: 2-метил-2,5-пентандиол; 1,4-гександиол; 1,4-пентандиол. Выход 20 - 74 %. Реагент 1: 2-пропен-1-ол; реагент 2: алифатический насыщенный спирт. Условия реакции: в присутствии кислорода воздуха при соотношении объемов жидкости и воздуха 1 : (1 - 7) при повышенных температурах в запаянных стеклянных ампулах.

Способ получения 4-(4-бифенилил)-1 бутанола

UNSATURATED FATTY ALCOHOLS AND PROCESS FOR THEIR PREPARATION

METHATHESESYNTHESE OF PHEROMONES OR YOUR COMPONENTS

PROCEDURE FOR THE PRODUCTION OF FLUORALKANOL

VERFAHREN ZUR HERSTELLUNG DES NEUEN 4-(4-BIPHENYLYL)-1-BUTANOLS

PROCEDURE FOR the PRODUCTION of the NEW ONE 4 (4-BIPHENYLYL) - 1-BUTANOLS

FRIEDEL CRAFT REACTIONS.

ALCOHOL CONDENSING PROCEDURE.

PROCEDURE FOR the PRODUCTION OF 2,2DIMETHYLPROPANDIOL (1,3).

PROCEDURE FOR the PRODUCTION of the NEW ONE 4 (4-BIPHENYLYL) - 1-BUTANOLS

PROCEDURE FOR the PRODUCTION of the NEW ONE 4 (4-BIPHENYLYL) - 1-BUTANOLS

Process for producing fluoroalkanol

PROCESS FOR PREPARING 2-ALKYL-1,4-BUTANEDIOLS

PROCESS FOR PREPARING TRUE ACETYLENIC HYDROCARBONS CONTAINING A PERFLUORINATED CHAIN

Procédé de préparation des hydrocarbures acétyléniques vrais à chaîne perfluorée caractérisé en ce que l'on effectue une déhydroiodation par la potasse en milieu alcoolique, de la iodhydrine de formule: < IMG > où RF est une chaîne perfluorée CnF2n+1- droite ou ramifiée et R et R' sont des radicaux alkyles identiques ou différents; suivie d'une distillation en présence de soude solide, de l'alcool acétylénique obtenu.

METHOD FOR THE CYCLOTRIMERIZATION OF ALKYNES IN AQUEOUS SOLUTIONS

This invention discloses an improved method for the [2 + 2 + 2] cyclotrimerization reaction in aqueous solutions using a water soluble transition metal catalyst.

MANUFACTURE OF A LYCOPENE METABOLITE

The invention is concerned with a multi-stage process for the manufacture of an oxidative metabolite of the carotenoid lycopene, 2,6-cyclolycopene-1,5-diol of t he formula Starting from .alpha.-terpinyl acetate this is oxidatively dihydroxylated to a c yclohexanediol (IV), the cyclohexanediol (IV) is oxidatively cleaved to a ketoaldehyde (V), the ketoaldehyde (V) is subjected to an intramolecular aldol condensation to give a cyclopentanol (VI), the cyclopentanol (VI) is silylated to its silylated derivat ive ¢formylcylopentane (VII)!, the formylcyclopentane (VII) is subjected to a C3-cha in lengthening with acetone and simultaneously to a saponification for the cleavage of the acetyl group to give a cyclopentylbutenone (VIII), the cyclopentylbutenone (VIII ) is reacted with vinyl magnesium bromide to give a pentadienol (IX), the pentadienol (IX) is converted with deprotection of the silylated hydroxy group into a phosphonium sa lt (X), this salt is subjected to a Wittig reaction with ...

(6r, 10r) - 6.10, 14 - trimetilpentadekan - 2 - one, obtained from 6.10 - dimetilundets - 5 - en - 2 - one or 6.10 - dimetilundeka - 5, 9 - diene - 2 - one

INTERMEDIATE COMPOUNDS FOR USE IN PRODUCTION OF VITAMIN E

Method of preparing [...].

METHOD OF PREPARATION OF HEXYNE-3 OL-1

A METHOD FOR PRODUCING N-OCTANOL

Enyne-1,6-diol derivatives and synthesis of them

PREPARATION OF 4,4,4-TRICHLOROBUTANOL

PURPOSE: A preparation for 4,4,4-trichlorobutane-1-ol involves continuous addition of allyl alcohol to chloroform in the presence of a radical initiator over the period of the reaction. CONSTITUTION: The preparation comprises reacting allyl alcohol with chloroform in the presence of a radical initiator, characterized by gradually adding allyl acetate to the chloroform. In the reaction, different allyl alcohols are gradually added to the chloroform over the reaction period, or an allyl alcohol is continuously added to the chloroform over the reaction period. The reaction is carried out under conditions of high temperature (100 to 150°C) and high pressure (80 to 90 psi). The radical initiator is selected from organic peroxide or per ester and azo compounds. More specially, the radical initiator is selected from the group consisting of t-butyl per benzoate, t-butyl peroxide, azobisisobutyronitrile and mixture thereof. The reaction is carried out in the presence of a salt selected from alkali ...

Process for the preparation of a composition, composites, and, process for the preparation of fitona and/or vitamin e

METHOD FOR PRODUCING 4-CYCLOHEXYL-2-METHYL-2-BUTANOL

The invention relates to a method for producing 4-cyclohexyl-2-methyl-2-butanol, comprising: a) reacting styrene with isopropanol at elevated temperature, wherein 2-methyl-4-phenyl-2-butanol is obtained; and b) hydrogenating 2-methyl-4-phenyl-2-butanol by means of heterogeneous catalysis on a catalyst suitable for the ring hydrogenation of aromatics, wherein the molar ratio of the styrene used in step a) to the isopropanol used in step a) lies within the range from 1 : under 5 to 1 : 0.5.

ONE-STEP PRODUCTION OF 1,3-PROPANEDIOL FROM ETHYLENE OXIDE AND SYNGAS WITH A CATALYST WITH A N-HETEROCYCLIC LIGAND

A catalyst composition comprising: a) a cobalt component comprising one or more non-ligated cobalt carbonyl compounds; and b) a ruthenium component comprising a ruthenium carbonyl compound ligated with a N-heterocyclic ligand selected from the group consisting of bidentate and multidentate N-heterocyclic ligands; and a process for preparing 1,3-propanediol using such a catalyst composition.

Novel optically active benzylalkylcarbinols, their preparation and use

The present invention relates to novel optically active benzylalkylcarbinols, to their preparation and to their use, in particular in perfumery.

Process for producing a fluoroalkanol

A process for producing a fluoroalkanol which can easily be industrially practiced with high selectivity, is provided. CHR1R2OH, a radical initiator and CF2=CFRf are continuously supplied and reacted at from 105 to 135° C., and H-(RfCFCF2)n-CR1R2-OH formed, is continuously discharged. Here, each of R1 and R2 is a hydrogen atom or a C1-3 alkyl group, Rf is a fluorine atom or a C1-4 polyfluoroalkyl group, and n is an integer of from 1 to 4.

MANUFACTURE OF ALCOHOLS

BIOMASS GASIFICATION AND INTEGRATED PROCESSES FOR MAKING INDUSTRIAL CHEMICALS THROUGH AN ESTER INTERMEDIATE

The invention relates to integrated processes for producing industrial chemicals, such as alcohols, carboxylic acids, esters, aldehydes, olefins and polymers from biomass. In one embodiment, the invention is to a process comprising the steps of: introducing biomass and an oxygen stream to a gasifier and converting the biomass into a product gas, wherein the gasifier is operated at a pressure of at least 10 bar; compressing the product gas at a compression ratio that is less than 3:1 to form a compressed product gas; directing a first portion of the compressed product gas to an alcohol synthesis reactor to produce methanol; reacting carbon monoxide with the methanol to produce acetic acid; esterifying the acetic acid with ethanol to form ethyl acetate; and reducing the ethyl acetate with hydrogen in the presence of a catalyst to form ethanol. 1. An integrated process for producing ethanol from biomass , comprising:introducing biomass and an oxygen stream to a gasifier and converting the biomass into a product gas, wherein the gasifier is operated at a pressure of at least 10 bar;compressing the product gas at a compression ratio that is less than 3:1 to form a compressed product gas;directing a first portion of the compressed product gas to an alcohol synthesis reactor to produce methanol;reacting carbon monoxide with the methanol to produce acetic acid;reducing a first portion of the acetic acid with hydrogen to produce ethanol in the presence of a catalyst having a selectivity to ethanol that is greater than 50%;esterifying a second portion of the acetic acid and the ethanol to produce ethyl acetate; andreducing the ethyl acetate with hydrogen to produce ethanol, provided that at least times more ethanol is produced by reducing the ethyl acetate than is formed by reducing the acetic acid, and wherein none of the ethanol produced by reducing the ethyl acetate is esterified with acetic acid.2. The process of claim 1 , wherein the gasifier is operated at a pressure of ...

PRODUCTION OF ETHANOL FROM SYNTHESIS GAS

A process for producing ethanol from synthesis gas by reacting the hydrogen and carbon monoxide of the synthesis gas to provide methanol, which then is subjected to dehydration to produce at least one ether, such as dimethyl ether. The ether, such as dimethyl ether, then is subjected to carbonylation with unreacted carbon monoxide from the synthesis gas to provide at least one acetate, such as methyl acetate. The acetate then is subjected to hydrogenolysis to produce ethanol. 1. A process for producing ethanol from synthesis gas , comprising:(a) reacting synthesis gas, said synthesis gas containing hydrogen and carbon monoxide under conditions to provide a first product including at least one ether, unreacted hydrogen, and unreacted carbon monoxide; and(b) reacting said first reaction product under conditions to provide a second reaction product including ethanol.2. The process of wherein said at least one ether is dimethyl ether.3. The process of wherein step (a) comprises:(i) reacting said hydrogen with said carbon monoxide of said synthesis gas to produce methanol; and(ii) converting said methanol to said at least one ether, thereby providing said first reaction product including said at least one ether, said unreacted hydrogen and said unreacted carbon monoxide.4. The process of wherein step (a) is conducted in the presence of a catalyst.5. The process of wherein said catalyst is selected from the group consisting of copper chromite claim 4 , copper oxide claim 4 , zinc oxide claim 4 , and mixtures thereof.6. The process of wherein said catalyst is supported on a support selected from the group consisting of alumina and zeolites.7. The process of wherein said catalyst further includes a transition metal.8. The process of wherein step (b) comprises:(i) reacting said at least one ether with carbon monoxide to produce at least one acetate; and(ii) subjecting said at least one acetate to hydrogenolysis to produce ethanol.9. The process of wherein step (b) is ...

METHOD FOR CONVERTING METHANE INTO OXYGENATED DERIVATIVES OF ONE CARBON ATOM

Method for converting methane into oxygenated derivates, characterized in that it comprises irradiating a solid surface using UV light with a wavelength of less than 200 nm and in that it takes place on the surface of a solid, preferably a microporous solid, wherein the selectivities achieved are greater than 90% for conversions of about 10%. 1. Method for converting methane , wherein it comprises: irradiating a solid with wavelengths equal to or less than 200 nm and producing a free-radical reaction in a photochemical reactor , forming oxygenated compounds of one carbon atom on the surface of said solid.2. Method according to claim 1 , wherein the photochemical reactor has a deuterium lamp and a magnesium fluoride window.3. Method according to claim 1 , wherein the photochemical reactor has a mercury lamp and a quartz window.4. Method according to claim 1 , wherein the solid used is a mesoporous or microporous aluminosilicate.5. Method according to claim 4 , wherein the solid used is a medium or small pore size zeolite.6. Method according to claim 5 , wherein the zeolite is a zeolite beta with a silicon to aluminum ratio between 10 and infinity.7. Method according to claim 1 , wherein it may be carried out by means of one cycle in two stages:the first stage comprises the photochemical irradiation, in which the methane derivatives are formed both in the gaseous phase and, preferably, inside the solid, andthe second stage comprises the desorption of the oxygenate compounds present in the solid.8. Method according to claim 7 , wherein the second stage is carried out by washing the material with water at 150° C.9. A method according to claim 1 , wherein it is carried out continuously by introducing into the photo-reactor a gas flow claim 1 , which includes methane and oxygen and wherein the exit gases contain methanol and other oxygenated derivatives.10. A method according to claim 9 , wherein it is carried out at a temperature of 80° C.12. Use of a mesoporous or ...

PRODUCTION OF OXYGENATES FROM A METHANE CONVERSION PROCESS

Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing acetylene as an intermediate stream to form a stream having oxygenates. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream may be treated to convert acetylene to oxygenates through subsequent reactors. 1. A method for producing aldehydes comprising:introducing a feed stream comprising methane into a supersonic reactor;converting the methane in the supersonic reactor to form a reactor effluent stream comprising acetylene;passing the reactor effluent stream to a hydrogenation reactor at hydrogenation reaction conditions to form a second effluent stream comprising olefins; andpassing the second effluent stream to an aldehyde conversion reactor at aldehyde conversion reaction conditions to form an effluent stream comprising aldehydes.2. The method of further comprising:passing the second effluent stream to an oligomerization reactor to generate an oligomerization effluent stream; andpassing the oligomerization effluent stream to the aldehyde conversion reactor, to generate an effluent stream comprising C4+ aldehydes.3. The method of further comprising passing an oxygen stream comprising oxygen to the aldehyde conversion reactor.4. The method of wherein the aldehyde reaction conditions include an aldehyde conversion catalyst.5. The method of wherein the oxidation catalyst is a metal chloride. (PdCl2 claim 4 , CuCl2).6. The method of further comprising passing a second stream comprising water to the aldehyde conversion reactor.7. The method of wherein the aldehyde conversion reaction conditions include basic reaction conditions over a catalyst.8. The method of wherein in the basic reaction conditions include the addition of an alkali compound.9. The method of wherein the conversion reaction in the supersonic reactor is a pyrolysis reaction.10. A ...

METHOD FOR PREPARING 2-METHYL-4-PHENYLBUTAN-2-OL

For the preparation of 2-methyl-4-phenylbutan-2-ol, a benzylmagnesium halide is reacted with isobutylene oxide. 2-Methyl-4-phenylbutan-2-ol is suitable as a fragrance. 111-. (canceled)12. A method for preparing 2-methyl-4-phenylbutan-2-ol , said method comprising reacting a benzylmagnesium halide with isobutylene oxide.13. The method of claim 12 , wherein the benzylmagnesium halide is benzylmagnesium bromide or benzylmagnesium chloride.14. The method of claim 12 , wherein 0.5 to 5 mol of benzylmagnesium halide is used per mole of isobutylene oxide.15. The method of claim 12 , wherein the reaction is carried out in the presence of at least one Cu(I) compound.16. The method of claim 15 , wherein the Cu(I) compound is copper(I) iodide.17. The method of claim 15 , wherein 0.05 to 0.3 mol of the Cu(I) compound is used per mole of isobutylene oxide.18. The method of claim 12 , wherein the benzylmagnesium halide is obtained by reaction of a benzyl halide with magnesium.19. The method of claim 18 , wherein 1 to 10 mol of magnesium is used per mole of benzyl halide.20. The method of claim 18 , wherein the reaction of the benzyl halide with magnesium and the reaction of the thus formed benzylmagnesium halide with isobutylene oxide take place in the same diluent.21. The method of claim 20 , wherein the diluent is an ether.22. The method of claim 21 , wherein the ether is tetrahydrofuran or 2-methyltetrahydrofuran. This application claims benefit of U.S. Provisional Application Ser. No. 61/697,821, filed Sep. 7, 2012, which is incorporated herein by reference in its entirety.The present invention relates to a method for preparing 2-methyl-4-phenylbutan-2-ol.2-Methyl-4-phenylbutan-2-ol, also referred to as dimethylphenylethylcarbinol or “muguet carbinol”, is a fragrance with a floral aroma which is somewhat verdant and herbal, reminiscent of hyacinths and lilies (WO 2004/076393 A1). 2-Methyl-4-phenylbutan-2-ol is used for improving the aroma and/or flavour of a product or else ...

Process for Preparing C4-Oxygenates

Preparation of C-oxygenates, in particular 2-butanol and butanone, which comprises the reaction of ethene with ethanol to form 2-butanol under conditions under which ethanol is present in the supercritical state. 1. A process for preparing C-oxygenates , which comprises the reaction of ethene with ethanol to form 2-butanol under conditions under which ethanol is present in the supercritical state.2. The process according to claim 1 , wherein ethanol is placed in a pressure-rated vessel claim 1 , ethene is introduced and the mixture is heated under autogenous pressure.3. The process according to claim wherein the ethene and the ethanol are used in a molar ratio in the range from 1:2 to 1:200.4. The process according to claim 1 , wherein the reaction of ethene with ethanol takes place at a temperature in the range from 241° C. to 500° C.5. The process according to claim 1 , wherein the reaction of ethene with ethanol takes places at a pressure in the range from 6.3 MPa to 50 MPa.6. The process according to claim 1 , wherein the reaction of ethene with ethanol takes place without addition of a free-radical initiator.7. The process according to claim 1 , which further comprises dehydrogenation of the 2-butanol to form butanone. The present invention relates to a process for preparing C4-oxygenates, in particular 2-butanol and butanone, from ethane and ethanol.Butanone, also referred to as methyl ethyl ketone or MEK, is, apart from acetone, the most important industrially produced ketone and is used as solvent in many fields. Butanone can be obtained by direct oxidation of n-butene, e.g. by the Wacker process, or as by-product from the preparation of phenol from benzene. However, the predominant proportion by far (88%) of butanone is prepared by catalytic dehydrogenation of 2-butanol. This very economical process gives high yields and displays a long life of the catalyst used, simple isolation of the product and low energy consumption. The 2-butanol used for the ...

PROCESS FOR THE PREPARATION OF CYCLOHEXYL-SUBSTITUTED TERTIARY ALKANOLS

The present invention relates to processes for the preparation of compounds of the formula (Ia) 115-. (canceled)17. The process according to claim 16 , wherein Rand R claim 16 , independently of one another claim 16 , are selected from the group consisting of C-alkyl claim 16 , C-cycloalkyl and C-cycloalkylalkyl.18. The process according to claim 16 , wherein the reaction in step a) takes place under conditions under which the compound of the formula (II) is present in the supercritical state.20. The process according to claim 16 , wherein the reaction in step a) takes place at a temperature in the range from 250 to 500° C. and a pressure in the range from 5 to 50 MPa.21. The process according to claim 16 , wherein the molar ratio of the styrene used in step a) to the compound of the formula (II) used in step a) is in the range from 1:5 to 1:200.22. The process according to claim 16 , wherein the catalyst used in step b) comprises at least one active metal selected from the group consisting of palladium claim 16 , platinum claim 16 , cobalt claim 16 , nickel claim 16 , rhodium claim 16 , iridium and ruthenium.23. The process according to claim 21 , wherein the catalyst used in step b) comprises ruthenium as active metal.24. The process according to claim 21 , wherein the catalyst used in step b) comprises at least one further active metal of sub-groups IB claim 21 , VIIB or VIIIB of the Periodic Table (CAS version).25. The process according to claim 16 , wherein step b) is carried out in trickle mode.26. The process according to claim 16 , wherein Ris methyl and Ris ethyl.28. The compound according to claim 27 , wherein Rand R claim 27 , independently of one another claim 27 , are selected from the group consisting of C-alkyl claim 27 , C-cycloalkyl and C-cycloalkylalkyl.30. The compound according to claim 29 , wherein Rand R claim 29 , independently of one another claim 29 , are selected from the group consisting of C-alkyl claim 29 , C-cycloalkyl and C- ...

PRINS REACTION ON HINDERED SUBSTRATES

The present invention relates to the field of organic synthesis and more specifically it concerns a process for the preparation of homoallylic alcohol derivatives as defined in formula (I) via a reaction of alkene of formula (II) with an aldehyde. 2. A process according to claim 1 , wherein the compound of formula (II) are C-Ccompounds.5. A process according to claim 1 , wherein the compound of formula (IV) is 1 claim 1 ,1 claim 1 ,4a claim 1 ,6-tetramethyl-5-methylenedecahydronaphthalene in the form of an essentially pure stereoisomer or in the form of a mixture of stereoisomers.6. A process according to claim 1 , wherein compound of formula RCHO is paraformaldehyde.7. A process according to claim 1 , wherein temperature at which the reaction can be carried out is comprised in the range between 160° C. and 230° C.8. A process according to claim 1 , wherein the process is carried out in the presence of carboxylic derivative selected amongst a Ccarboxylic acid claim 1 , Ccarboxylic anhydride or a mixture of said carboxylic acid and said carboxylic anhydride.9. A process according to claim 1 , wherein the process is carried out in the presence of a solvent. The present invention relates to the field of organic synthesis and more specifically it concerns a process for the preparation of homoallylic alcohol derivatives as defined in formula (I) via a reaction of highly sterically hindered alkene of formula (II) with an aldehyde.Many homoallylic alcohol derivatives as defined in formula (I) are useful products as such or useful intermediates of the preparation of other important raw materials in particular for the perfumery industry (e.g. 2-(2,5,5,8a-tetramethyl-3,4,4a,5,6,7,8,8a-octahydronaphthalen-1-yl)ethan-1-ol). The latter compound is an important intermediate for the preparation of industrially relevant compounds such as Cetalox® (3a,6,6,9a-tetramethyldodecahydronaphtho[2,1-b]furan; origin: Firmenich SA, Geneva, Switzerland) or Ambrox® (mixture of diastereomers of ...

METHODS AND COMPOSITIONS FOR THE CATALYTIC UPGRADING OF ALCOHOLS

Compositions and methods of use related to metal organic frameworks (MOFs) and/or nanoparticles are generally described. In some embodiments, methods and compositions for the catalytic upgrading of alcohols using MOFs and/or nanoparticles associated with MOFs are generally described. In some embodiments, a catalytic MOF composition is provided, wherein the MOF composition comprises a MOF compound and a plurality of metal catalytic compounds. In some embodiments, an alcohol may be exposed to the MOF composition and/or a plurality of nanoparticles associated with the MOF composition such that the alcohol is converted to a higher order alcohol. Advantageously, in some embodiments, the alcohol conversion occurs at a relatively high turnover frequency and/or with a relatively high selectivity as compared to traditional methods for converting alcohols. 15-. (canceled)6. A MOF composition , comprising:a MOF compound comprising a plurality of cobalt atoms or nickel atoms; anda plurality of metal catalytic compounds,wherein at least a portion of the plurality of metal catalytic compounds are bonded with and at least a portion of the cobalt atoms or nickel atoms in the form of an alloy.7. The composition of claim 6 , wherein the alloy is a nickel-based alloy or a cobalt-based alloy.8. The composition of claim 6 , wherein the alloy is a ruthenium-based alloy.9. The composition of claim 6 , wherein the alloy comprises RuCoor RuNinanoparticles.10. The composition of claim 6 , wherein the MOF compound comprises a plurality of ligands.11. (canceled)12. The composition of claim 10 , wherein each ligand comprises at least one N-substituted aromatic group.13. The composition of claim 10 , wherein each ligand comprises at least one pyrazole group.14. The composition of claim 10 , wherein each ligand comprises at least two pyrazole groups.1517-. (canceled)20. The composition of claim 18 , wherein each Ris the same and is optionally substituted alkyl.21. The composition of claim 18 , ...

CYCLOPROPANATION OF SUBSTITUTED ALKENES

Disclosed is a cyclopropanation process comprising the step of reacting an alkene compound having at least one carbon-carbon double bond with at least one dihaloalkane. The reaction is carried out in the presence of (i) particulate metal Zn, (ii) catalytically effective amount of particulate metal Cu or a salt thereof, (iii) at least one haloalkylsilane, and (iv) at least one solvent. 1. A cyclopropanation process comprising the step of reacting an alkene compound having at least one carbon-carbon double bond with at least one dihaloalkane in the presence of (i) particulate metal Zn , (ii) catalytically effective amount of particulate metal Cu or a salt thereof , (iii) at least one haloalkylsilane , and (iv) at least one solvent; thereby producing a cyclopropane derivative of said compound.2. A cyclopropanation process according to claim 1 , wherein said alkene compound has at least two carbon-carbon double bonds.3. A cyclopropanation process according to claim 1 , wherein said at least one dihaloalkane is dibromomethane claim 1 , chlorobromomethane claim 1 , or a combination thereof.4. A cyclopropanation process according to claim 1 , wherein said particulate metal Zn has particle size of less than 10 μm.5. A cyclopropanation process according to claim 1 , wherein said particulate metal Cu has particle size of less than 50 μm.6. A cyclopropanation process according to claim 1 , wherein said haloalkylsilane is chlorotrialkyl silane.7. A cyclopropanation process according to claim 6 , wherein said chlorotrialkyl silane is selected from the group consisting of chlorotrimethylsilane claim 6 , chlorotriethylsilane claim 6 , chlorotributylsilane claim 6 , chlorotriisobutylsilane claim 6 , chlorotrihexylsilane claim 6 , and any combinations thereof.8. A cyclopropanation process according to claim 1 , wherein said at least one solvent is an ether solvent.9. A cyclopropanation process according to claim 8 , wherein said at least one ether solvent is selected from the group ...

PRODUCTION METHOD FOR GAMMA, DELTA-UNSATURATED ALCOHOLS

Provided is a method from which a γ,δ-unsaturated alcohol having a much more smaller amount of inclusion of formic acid and a formic acid ester and having a high purity can be obtained in a high yield. Specifically, provided is a method for producing a γ,δ-unsaturated alcohol by causing a reaction between an α-olefin and formaldehyde, the method including a step of bringing a reaction liquid obtained through the reaction into contact with an alkaline aqueous solution so as to provide an aqueous solution having pH of 9 to 13. 2. The method for producing a γ claim 1 ,δ-unsaturated alcohol according to claim 1 , wherein an alkali in the alkaline aqueous solution is at least one selected from an alkali metal hydroxide claim 1 , an alkali metal carbonate claim 1 , an alkali metal acetate claim 1 , an alkali metal phosphate claim 1 , an alkaline earth metal hydroxide claim 1 , an alkaline earth metal carbonate claim 1 , an alkaline earth metal acetate claim 1 , and an alkaline earth metal phosphate.3. The method for producing a γ claim 1 ,δ-unsaturated alcohol according to claim 1 , wherein a concentration of the alkali in the alkaline aqueous solution is 0.01 to 20 mol/L.4. The method for producing a γ claim 1 ,δ-unsaturated alcohol according to claim 1 , wherein a temperature on the occasion of bringing the reaction liquid into contact with the alkaline aqueous solution is 10 to 90° C.5. The method for producing a γ claim 1 ,δ-unsaturated alcohol according to claim 1 , wherein the contact between the reaction liquid and the alkaline aqueous solution is performed in a counter-current mode.6. The method for producing a γ claim 1 ,δ-unsaturated alcohol according to claim 1 , wherein after bringing the reaction liquid into contact with the alkaline aqueous solution claim 1 , purification by distillation is performed.7. The method for producing a γ claim 1 ,δ-unsaturated alcohol according to claim 1 , wherein Ris an alkyl group having 1 to 5 carbon atoms.8. The method for ...

ETHERS OF BIS (HYDROXYMETHYL) CYCLOHEXANES

The present invention relates to ethers of 1,2-, 1,3- and 1,4-bis(hydroxymethyl)cyclohexanes, to the preparation of such ethers and also to the use of such ethers as fragrances and as formulation auxiliaries in fragrance-comprising preparations. 131-. (canceled)33. The cyclohexane derivative according to claim 32 , wherein the cyclohexane derivative is selected from 1 claim 32 ,4-bis(ethoxymethyl)cyclohexane claim 32 , 1 claim 32 ,4-bis(n-propoxymethyl)cyclohexane claim 32 , 1 claim 32 ,4-bis(isopropoxymethyl)cyclohexane and 1 claim 32 ,4-bis(tert-butoxymethyl)cyclohexane.34. The cyclohexane derivative according to claim 32 , having a cis/trans ratio of at least 70/30.35. The cyclohexane derivative according to claim 32 , having a trans/cis ratio of at least 70/30.37. Detergents claim 36 , cosmetic preparations claim 36 , fragranced hygiene articles claim 36 , foods claim 36 , food supplements claim 36 , fragrance dispensers claim 36 , perfumes claim 36 , pharmaceutical preparations claim 36 , crop protection compositions claim 36 , comprising the fragrance claim 36 , flavor claim 36 , or formulation auxiliary claim 36 , according to .38. A formulating agent in preparations which comprise fragrances and/or flavors claim 36 , said formulating agent comprising the fragrance claim 36 , flavor claim 36 , or formulation auxiliary claim 36 , according to .39. The fragrance claim 36 , flavor claim 36 , or formulation auxiliary claim 36 , according to which comprises a compound of the formula 1a.40. The fragrance claim 36 , flavor claim 36 , or formulation auxiliary claim 36 , according claim 36 , to claim 36 , where R1 and R2 are C1- to C4-alkyl.41. The fragrance claim 36 , flavor claim 36 , or formulation auxiliary claim 36 , according claim 36 , to claim 36 , where R3 claim 36 , R4 claim 36 , R5 claim 36 , and R6 claim 36 , are hydrogen or methyl.42. The fragrance claim 36 , flavor claim 36 , or formulation auxiliary claim 36 , according to claim 36 , where R1 and R2 ...

PROCESS FOR THE SYNTHESIS OF 9,9-BIS(HYDROXYMETHYL)FLUORENE

The present invention relates to a novel process for the synthesis of 9,9-bis(hydroxymethyl)fluorene. The syntheses from fluorene to 9,9-bis(hydroxymethyl)fluorene via a hydroxymethylation and further to 9,9-bis(methoxymethyl)fluorene via a etherification are known. 9,9-bis(methoxymethyl)fluorene is a compound that is used as an electron donor for Ziegler-Natta catalysts. The present invention is related to an improvement in the synthesis of 9,9-bis(hydroxymethyl)fluorene leading to a decrease in the amount of solvent used and an easier work up while achieving high yield and purity. 1. A process for the synthesis of 9 ,9-bis(hydroxymethyl)fluorene from fluorene comprising providing a mixture of paraformaldehyde , dimethylsulfoxide and a sodium alkoxide and adding fluorene to said mixture to obtain 9 ,9-bis(hydroxymethyl)fluorene , wherein fluorene is added as a solid.2. The process according to claim 1 , wherein fluorene is added in the form of a powder.3. The process according to claim 1 , wherein dimethylsulfoxide is present in an amount of at most 1250 milliliters per mole of fluorene used.4. The process according to claim 1 , wherein paraformaldehyde is used in an amount of between 1.8 and 2.6 mole per mole of fluorene used.5. The process according to claim 1 , wherein said sodium alkoxide is selected from sodium methoxide and sodium ethoxide.6. The process according to claim 1 , wherein said sodium alkoxide is used as a sodium alkoxide solution in an alcoholic solution.7. The process according to claim 1 , comprising the following steps:a) providing a mixture of paraformaldehyde and dimethylsulfoxide;b) adding a sodium alkoxide solution in an alcoholic solvent to the mixture of step a);c) adding fluorene as a solid to the mixture obtained in step b);d) allowing the mixture obtained in step c) to react;e) quenching the mixture obtained in step d) by adding an acid;f) mixing the mixture obtained in step e) with water to obtain a suspension of crude 9,9-bis( ...

Process for preparing a mixture of alcohols

A method for preparing a mixture (M) including at least one alcohol (Aj), wherein said method includes a gas-phase oligomerization reaction of at least one alcohol (Ai) with a solid acid-base catalyst doped with one or more metals, said reaction being carried out in the presence of hydrogen and at a temperature of no less than 50° C. and strictly less than 200° C.

PROCESS FOR PREPARING 4-CYCLOHEXYL-2-METHYL-2-BUTANOL

A process for preparing 4-cyclohexyl-2-methyl-2-butanol, comprising: 124-. (canceled)25. A process for preparing a composition comprising 2-methyl-4-phenyl-2-butanol and 2-methyl-4-phenyl-2-pentanol comprising the reaction of styrene with isopropanol at elevated temperature under conditions under which isopropanol is present under supercritical conditions , the molar ratio of styrene to isopropanol being in the range from 1:below 10 to 1:0.5.26. The process according to claim 25 , wherein at least 80% of the isopropanol is initially charged and at least 80% of the styrene used is supplied to the reaction under reaction conditions.27. The process according to claim 25 , wherein the elevated temperature is above 300° C.28. The process according to claim 25 , wherein the elevated temperature is above 320° C.29. The process according to claim 25 , wherein the elevated temperature is 390° C. to 500° C.30. The process as claimed in claim 25 , wherein the molar ratio of the styrene used in step a) to the isopropanol used in step a) is in the range from 1:4.9 to 1:0.5.31. The process as claimed in claim 25 , wherein the molar ratio of the styrene used in step a) to the isopropanol used in step a) is in the range from 1:4.5 to 1:0.5.32. The process as claimed in claim 25 , wherein the molar ratio of the styrene used in step a) to the isopropanol used in step a) is in the range from 1:4 to 1:0.75.33. The process as claimed in claim 25 , wherein the molar ratio of the styrene used in step a) to the isopropanol used in step a) is in the range from 1:3.5 to 1:1.15.34. The process as claimed in claim 25 , wherein the molar ratio of the styrene used in step a) to the isopropanol used in step a) is in the range from 1:2 to 1:1.35. A process for preparing 4-cyclohexyl-2-methyl-2-pentanol comprisinga′) preparation of a composition comprising 2-methyl-4-phenyl-2-butanol and 2-methyl-4-phenyl-2-pentanol by reaction of styrene with isopropanol at elevated temperature under conditions ...

Actinide catalyzed chain growth process

An improved process for preparing an alkyl chain growth product by the chain growth reaction of α-olefin in an aluminum alkyl uses a catalyst system which comprises an actinide metallocene.

Chain growth method using actinide catalyst

Process for the preparation of olefin-substituted aromatics or heteroaromatics

Both low-molecular and high-molecular aromatic or heteroaromatic compounds, which are substituted with olefins, play an important role in industry, for example as auxiliary agents or additives in cosmetic preparations such as sunscreen agents, in diverse fine chemicals and chemicals for the electronics industry and in intermediate products for the pharmaceutical and agrochemical industries. Such compounds are of outstanding importance particularly in the rapid-growth field of organic semiconductors, (e.g. for use in organic or polymer LEDs, organic solar cells and organic integrated circuits). The invention relates to a method for producing olefin-substituted aromatic or heteroaromatic compounds of this type, by reacting a functional aryl or heteroaryl compound with an olefin derivative, which has at least one H-atom on its double bond, in the presence of a simple palladium compound, optionally in the presence of an additive containing nitrogen and of a base in a solvent, to form a C-C-linkage and a formal splitting-off of the aryl, or heteroaryl derivative functional group and of one H-atom of the olefin compound. The invention is characterised by the presence of at least one additive containing metal, which is different from palladium.

Process for the synthesis of 9,9-bis(hydroxymethyl)fluorene

Novel process.

Chiral organoalanes and their organic derivatives via zirconium-catalyzed asymmetric carboalumination of terminal alkenes

The present invention describes the Zr-catalyzed asymmetric carboalumination of alkenes to produce chiral alkylalanes that can be converted to various chiral organic compounds, such as isoalkyl alcohols, in highly enantiomeric excess. More particularly, the asymmetric addition of alkylaluminums to terminal alkenes under the influence of a catalyst such as a chiral zirconocene derivative produces chiral alkylaluminums that can be oxidized to 2-alkyl-substituted products (particularly alcohols) in greater than 60% enantiomeric excess. The ee figures can often exceed 95%. The organoalanes produces by the inventive process can be converted to a wide variety of other organic compounds of interest in the production of vitamins, pharmaceuticals and other medicinally and biologically important compounds, including vitamins and antibiotics.

Actinide catalyzed chain growth process

Actinide catalyzed chain growth process

An improved process for preparing an alkyl chain growth product by the chain growth reaction of α-olefin in an aluminum alkyl uses a catalyst system which comprises an actinide metallocene.

Process for the synthesis of 9,9-bis(hydroxymethyl)fluorene

The present invention relates to a novel process for the synthesis of 9,9-bis(hydroxymethyl)fluorene. The syntheses from fluorene to 9,9-bis(hydroxymethyl)fluorene via a hydroxymethylation and further to 9,9-bis(methoxymethyl)fluorene via a etherification are known. 9,9-bis(methoxymethyl)fluorene is a compound that is used as an electron donor for Ziegler-Natta catalysts. The present invention is related to an improvement in the synthesis of 9,9-bis(hydroxymethyl)fluorene leading to a decrease in the amount of solvent used and an easier work up while achieving high yield and purity.

Process for alpha,beta-dihydroxyalkenes and derivatives

Disclosed is a process wherein a first olefin selected from certain α,β-dihydroxyalkenes and 4-(alkenyl)ethylenecarbonates is reacted with a second olefin reactant to produce an olefin metathesis product. When the first olefin reactant is an optically enriched or enantiomerically pure α,β-dihydroxyalkene, cross metathesis reactions produce products possessing the same optical purity. The α,β-dihydroxyalkenes and the 4-(alkenyl)ethylene carbonates may be converted to hydrogenated products, and the 4-(alkenyl)ethylenecarbonates may be decarboxylated to provide the corresponding epoxides. The products of the disclosure may be used as monomers for the preparation of specialty polyesters and as intermediates in the manufacture pharmaceuticals and other chemicals.

Process for α,β-dihydroxyalkenes and derivatives

Disclosed is a process wherein a first olefin selected from certain α,β-dihydroxyalkenes and 4-(alkenyl)ethylenecarbonates is reacted with a second olefin reactant to produce an olefin metathesis product. When the first olefin reactant is an optically enriched or enantiomerically pure α,β-dihydroxyalkene, cross metathesis reactions produce products possessing the same optical purity. The α,β-dihydroxyalkenes and the 4-(alkenyl)ethylene carbonates may be converted to hydrogenated products, and the 4-(alkenyl)ethylenecarbonates may be decarboxylated to provide the corresponding epoxides. The products of the disclosure may be used as monomers for the preparation of specialty polyesters and as intermediates in the manufacture pharmaceuticals and other chemicals.

Process for α,β-dihydroxyalkenes and derivatives

Disclosed is a process wherein a first olefin selected from certain α,β-dihydroxyalkenes and 4-(alkenyl)ethylenecarbonates is reacted with a second olefin reactant to produce an olefin metathesis product. When the first olefin reactant is an optically enriched or enantiomerically pure α,β-dihydroxyalkene, cross metathesis reactions produce products possessing the same optical purity. The α,β-dihydroxyalkenes and the 4-(alkenyl)ethylene carbonates may be converted to hydrogenated products, and the 4-(alkenyl)ethylenecarbonates may be decarboxylated to provide the corresponding epoxides. The products of the disclosure may be used as monomers for the preparation of specialty polyesters and as intermediates in the manufacture pharmaceuticals and other chemicals.

Process for alpha,beta-dihydroxyalkenes and derivatives

Disclosed is a process wherein a first olefin selected from certain α,β-dihydroxyalkenes and 4-(alkenyl)ethylenecarbonates is reacted with a second olefin reactant to produce an olefin metathesis product. When the first olefin reactant is an optically enriched or enantiomerically pure α,β-dihydroxyalkene, cross metathesis reactions produce products possessing the same optical purity. The α,β-dihydroxyalkenes and the 4-(alkenyl)ethylene carbonates may be converted to hydrogenated products, and the 4-(alkenyl)ethylenecarbonates may be decarboxylated to provide the corresponding epoxides. The products of the disclosure may be used as monomers for the preparation of specialty polyesters and as intermediates in the manufacture pharmaceuticals and other chemicals.

Actinide catalyzed chain growth process

An improved process for preparing an alkyl chain growth product by the chain growth reaction of .alpha.-olefin in an aluminum alkyl uses a catalyst system which comprises an actinide metallocene.

Process for chain extension catalyzed by actinides

Actinide catalyzed chain growth process

Process for chain extension catalyzed by actinides

Actinide catalyzed chain growth process

An improved process for preparing an alkyl chain growth product by the chain growth reaction of .alpha.-olefin in an aluminum alkyl uses a catalyst system which comprises an actinide metallocene.

一种六甲基茚满醇的制备方法

本发明公开了一种六甲基茚满醇的制备方法，在催化剂的作用下，1,1,2,3,3‑五甲基茚满与丙烯醇发生反应，经连续精馏分离出产品；所使用的催化剂为负载型Ru催化剂，由Ru前体、配体、助催化剂和载体制备得到。本发明主要优点在于由1,1,2,3,3‑五甲基茚满与丙烯醇反应制得六甲基茚满醇，负载型Ru催化剂活性高，选择性良好，不易流失，操作简单，经济效益好。

Processes for preparing vinylidene dimer derivatives

This disclosure provides a process for producing vinylidene dimer derivatives by subjecting one or more vinylidene dimers and one or more carbonyl-containing compounds to a carbonyl-ene reaction, optionally in the presence of a catalyst, to produce one or more vinylidene dimer derived alcohols. This disclosure also provides a process for producing vinylidene dimer derivatives by reacting one or more vinylidene dimers with one or more carbonyl-containing compounds, optionally in the presence of a catalyst, to produce one or more vinylidene dimer derived alcohols. This disclosure further provides vinylidene dimer derivatives (e.g., vinylidene dimer derived alcohols and esters) produced by these processes. This disclosure still further provides for hydrogenating/reacting the vinylidene dimer derived alcohols with acids or anhydrides to produce vinylidene dimer derived esters. This disclosure yet further relates to lubricating ester oil base stocks, and lubricating oils containing the lubricating ester oil base stocks.

Polyols

내용 없음. No content.

Preparation method of 4,4,4-trichlorobutanol

(57)【要約】 4,4,4-トリクロロブタン-1-オールの調製方法であって、アリルアルコールをラジカル開始剤の存在下でクロロホルムと反応させる工程を包含する、方法。好ましくは、アリルアルコールは、反応の期間にわたって、クロロホルムに増加的に添加される。

Method of synthesis of octa-2,7-diene-1-ol

FIELD: organic chemistry, chemical technology. SUBSTANCE: method involves hydrodimerization reaction of 1,3-butadiene with water in the presence of transient metal in metallic form or its compounds being metal is taken from the group including palladium, nickel, platinum, cobalt and rhodium, water-soluble tertiary or quaternary phosphorus compound and at least a single nitrogen compound. The indicated reaction is carried out in the presence of carbon dioxide and nitrogen compound is taken from tertiary amine or quaternary ammonium salt of the general formula (I) or (II): N(R p ,R q )-R r or N(R p ,R s ,R q )-R r -OH - where R p ,R q and, respectively, R s are similar or distinct each of other and each is a methyl or ethyl group; R r is alkyl containing from 6 to 22 carbon atoms. EFFECT: high yield of the end compounds and selectivity of process, simplified technology, stable catalyst using. 10 cl, 6 tbl, 33 ex СЗУтОСТсС ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ "” 2 120 432 ' 13) Сл С 07С 29/36, 33/02 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 95112834/04, 04.11.1993 (30) Приоритет: 06.11.1992 ЕК 92/13392 04.03.1993 ЕВ 9302524 (46) Дата публикации: 20.10.1998 (56) Ссылки: ЕР 0436226 АЛ, 1991. ЕР 0296550 АЛ, 1988. 5Ц 944498 А, 1982. 5 963226 А, 1982. (71) Заявитель: ЭЛФ Атошем С.А. (ЕК) (72) Изобретатель: Монфлье Эрик (ЕК), Бурдодюк Поль (ЕК), Кутюрье Жан-Люк (ЕК) (73) Патентообладатель: ЭЛФ Атошем С.А. (ЕК) (54) СПОСОБ ПОЛУЧЕНИЯ ОКТА-2,7-ДИЕН-1-ОЛА (57) Реферат: Предложен способ получения окта-2, /-диен-1-ола, включающий реакцию гидродимеризации 1,3-бутадиена водой в присутствии переходного металла В металлической форме или в виде соединения указанного металла, который выбран ИЗ группы, включающей в себя палладий, никель, платину, кобальт и родий, водорастворимого третичного или четвертичного соединения фосфора и по меньшей мере одного соединения азота, причем указанную реакцию проводят в присутствии ...

Method of extracting dry aniline from nitrobenzene gas-phase catalytic hydrogenation product

FIELD: chemistry. SUBSTANCE: method comprises the condensation of aniline and water, separation of excessive hydrogen from the condensate, separation of condensate into aniline water and raw aniline, extraction of aniline from aniline water by azeotropic rectification and drying of the raw aniline. A distinctive feature of the method lies in the fact that for the drying of raw aniline the dispersed water from the raw aniline is desorbed with a vapour-gas mixture, obtained during nitrobenzene catalytic hydrogenation with an initial temperature of 150-170°C at a pressure close to atmospheric and during feeding of the vapour-gas mixture and the raw aniline by countercurrent. If necessary, the dry raw is additionally desorbed with a make-up hydrogen with an initial temperature of 40-100°C after desorption with a vapour-gas mixture. EFFECT: method increases the energy efficiency of the process while maintaining high output and quality of the product. 2 cl, 1 tbl, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 612 799 C1 (51) МПК C07C 211/46 (2006.01) C07C 209/82 (2006.01) C07C 209/36 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2016104710, 11.02.2016 (24) Дата начала отсчета срока действия патента: 11.02.2016 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 11.02.2016 (45) Опубликовано: 13.03.2017 Бюл. № 8 (56) Список документов, цитированных в отчете о поиске: НИКОЛАЕВ Ю.Т. и др.Анилин, 2 6 1 2 7 9 9 R U (54) Способ выделения осушенного анилина из продукта газофазного каталитического гидрирования нитробензола (57) Формула изобретения 1. Способ выделения осушенного анилина из продукта газофазного каталитического гидрирования нитробензола, включающий конденсацию анилина и воды, отделение от конденсата избыточного водорода, сепарацию конденсата на анилиновую воду и анилин-сырец, извлечение анилина из анилиновой воды азеотропной ректификацией и сушку анилина сырца, отличающийся ...

Method for Preparing Acetylenic Alcohols by Continuous Process

본 발명은 불균일계 강염기성 음이온 교환수지를 사용한 에티닐화 반응 (Ethynylation)을 통해 아세틸렌 알코올 화합물을 연속적으로 제조하는 방법에 관한 것으로, 좀 더 상세하게는 기체 상태의 아세틸렌, 하기 화학식 2로 표시되는 -CH 2 -CO-CH 2 -기를 포함하는 케톤 및 비양자성 용매를 혼합하여, 강염기성인 4차 수산화암모늄 음이온 교환수지가 충진된 반응기에 공급하여 -20∼20℃의 온도범위 및 1∼10㎏/㎠의 압력범위 하에서 반응시키며, 여기서 상기 케톤과 아세틸렌의 반응몰비는 1.0 : 2.0∼15.0이고, 케톤과 용매의 반응 부피비는 1.0 : 2.0∼6.0 범위이며, LHSV는 0.1∼5.0 범위인 아세틸렌 알코올 화합물의 연속 제조방법에 관한 것이다. 본 발명은 케톤들의 전환율이 95%이상을 유지하며 아세틸렌 알코올의 선택도를 97%이상으로 유지할 수 있다. The present invention relates to a method for continuously preparing an acetylene alcohol compound through an ethynylation reaction using heterogeneous strong base anion exchange resin, more specifically, a gaseous acetylene, represented by the following formula (2): Ketones containing a CH 2 -CO-CH 2 -group and aprotic solvents were mixed, and fed to a reactor filled with a strong basic quaternary ammonium hydroxide anion exchange resin, and a temperature range of -20 to 20 ° C and 1 to 10 kg / The reaction molar ratio of ketone and acetylene is 1.0: 2.0-15.0, the reaction volume ratio of ketone and solvent is 1.0: 2.0-6.0, and LHSV is 0.1-5.0. It relates to a continuous manufacturing method. The present invention can maintain the conversion of ketones of 95% or more and maintain the selectivity of acetylene alcohol of 97% or more. 아세틸렌, 케톤, 음이온 교환수지, 비양성자성 용매, 아세틸렌 알코올 Acetylene, ketone, anion exchange resin, aprotic solvent, acetylene alcohol

Cyclopropane derivatives

내용없음 No content

Method for preparation cyclopropane derivatives

Изобретение относитс  калкиларомати- ческим спиртам, в частности к получений) производных циклопропана ф-лы ;. .2 YОН ©-сн-сьь 3 где Y-CI; RI - Ci-Gi-алкил которые используют при получении фунгицидов. Цель изобретени  - вы вление новых промежуточных соединений. Получение ведут двум  способами. Обработкой З-Ci - С4-алкил-4-(4-хлорфенил)-бут-1-ен-4-ола соединением ф-лы CH2ZiZ2, где Zi и Z2, которые могут быть одинаковые и .различные, означают галогены, в присутствии металлического цинка 2. ОбработкойгалоидзамещеНногх ) бензальдегида металлоорганическим соединением ф-лы RI - - СНаМ, где RI ;.:г С1 С4-алкил; М - металл, с последующим действием на образующийс  ненасыщенный спирт в присутствии металлического цинка соединением ф-лы CHaZtZa, где Zi и 22, которые могут быть одинаковые или различные означают атомы галогена. 2 с. и 1 з.п.ф-лы. The invention relates to calkyl aromatic alcohols, in particular, to the preparations of cyclopropane derivatives; .2 YOH © -sn 3 where Y-CI; RI - Ci-Gi-alkyl which is used in the preparation of fungicides. The purpose of the invention is the discovery of new intermediates. Getting lead in two ways. By treatment with C-Ci-C4-alkyl-4- (4-chlorophenyl) -but-1-en-4-ol with compound f-ly CH2ZiZ2, where Zi and Z2, which may be the same and different, mean halogens, in the presence of zinc metal 2. Treatment of a halide-substituted benzaldehyde) with an organometallic compound f-ly RI - - CHaM, where RI.: g is C1-C4-alkyl; M is a metal, followed by the action on the resulting unsaturated alcohol in the presence of metallic zinc with the compound CHaZtZa, where Zi and 22, which may be the same or different, mean halogen atoms. 2 sec. and 1 zp f-ly.

PROCESS FOR THE MANUFACTURE OF ETHYLENE GLYCOL

Process for the preparation of octadienols.

Process for the production of 1-phenyl-2-cyclopropyl-ethan-1-ol-compounds, derivatives therefrom and intermediates therefore

The invention provides a process for the preparation of a compound of the general formula (I): (I)

PROCESS FOR THE PREPARATION OF 7-METHYL-3-METHYLENE-7-OCTEN-1-YL PROPIONATE

L'INVENTION CONCERNE LA PREPARATION DU PROPIONATE DE 7-METHYL-3-METHYLENE-7-OCTEN-1-YL A PARTIR DU 3-METHYL-3-BUTEN-1-OL EN PRESENCE D'UN ALCOYL LITHIUM. LE PRODUIT OBTENU EST UTILE POUR LUTTER CONTRE LE POU DE SAN JOSE. THE INVENTION RELATES TO THE PREPARATION OF 7-METHYL-3-METHYLENE-7-OCTEN-1-YL PROPIONATE FROM 3-METHYL-3-BUTEN-1-OL IN THE PRESENCE OF AN ALCOYL LITHIUM. THE PRODUCT OBTAINED IS USEFUL FOR THE FIGHT AGAINST SAN JOSE LICE.

Improved process for preparing 2-pentafluorophenylethanol

PROCESS FOR THE PREPARATION OF A MIXTURE OF ALCOHOLS

The present invention relates to a method for preparing a mixture (M) including at least one alcohol (Aj), wherein said method includes a gas-phase oligomerization reaction of at least one alcohol (Ai) with a solid acid-base catalyst doped with one or more metals, said reaction being carried out in the presence of hydrogen and at a temperature of no less than 50°C and strictly less than 200°C.

Process for the preparation of tertiary alcohols containing fluorine

Abstract of the disclosure Process for the preparation of tertiary alcohols containing fluorine In the process described tertiary fluoroalcohols of the following formula

Method for synthesizing bis- (methylol) fluorenes of 9,9-

本发明涉及一种用于合成9,9‑双(羟甲基)芴的新颖方法。从芴经由羟甲基化到9,9‑双(羟甲基)芴并且进一步经由醚化到9,9‑双(甲氧基甲基)芴的合成是已知的。9,9‑双(甲氧基甲基)芴是用作用于齐格勒‑纳塔催化剂的给电子体的化合物。本发明涉及9,9‑双(羟甲基)芴的合成的改进，导致所使用溶剂的量减少以及更容易的后处理同时实现高的产率和纯度。

Process for making 1,3-diols from epoxides

A process for manufacturing 1,3-glycols is disclosed. The process comprises reacting an epoxide with synthesis gas in the presence of rhodium, a phosphine, and a lower-alkyl iodide or .beta.-hydroxy lower-alkyl iodide.

FOERFARANDE FOER FRAMSTAELLNING AV 1,3-DIOLER AV EPOXIDER.

Process for producing octa-2,7-dien-1-ol

An improved process for producing octa-2,7-dien-1-of by reacting butadiene with water is provided. The butadiene/ water reaction is carried out in an aqueous sulfolane solution containing a carbonate and/or bicarbonate of a monodentate tertiary amine having a basicity constant (pKa) of at least 7 in the presence of a palladium compound and a phosphonium salt, while maintaining the mole ratio of butadiene to octa-2,7-dien-1-01 at at least 0.6, to synthesize octa-2,7-dien-1-01. The octa-2,7-dien-1-of is extracted and part of the extraction residue containing catalyst is returned to the synthesis step. The extract containing octa-2,7-dien-1-01 is washed with an aqueous sulfolane solution in the presence of a water-soluble phosphine and separating the mixture into the aqueous sulfolane solution layer and the washed extract layer and part of the aqueous sulfolane solution layer obtained during washing is returned to the extraction step. The washed extract layer is washed to obtain the final product.

Polyols

Fluorine-containing polyols obtained by the free radical addition of a fluoro-olefin having the general formula: (see fig. 1) wherein Y represents F and Z represents C1 or F(CF2) n-wherein n is an integer from 0 to 10 or Y and Z together form a -(CF2) m- chain wherein m represents an integer from 2 to 4 to a polyol wherein each hydroxyl group is directly attached to a group of the formula: -(CH2)pO - (2) wherein p is an integer of at least 4.

METHOD FOR PRODUCING OCTADIENOLS

Preparation of alkenols

O.Z. 0050/42925 Abstract of the disclosure: A process for preparing alkenols of the formula I R1-CH=CH(CH2)nOH I where R1 is hydrogen or a hydrocarbon radical, and n is an integer from 3 to 15, a) by reacting a phosphonium salt of the formula IIa R1-CH2-P+(C6H5)3X- IIa where X is chlorine, bromine or iodine, with an aldehyde of the formula IIIa or its hemiacetal of the formula IIIb IIIa IIIb or b) by reacting a phosphonium salt of the formula IIb (C6H5)3P+(CH2)n+1OH X- IIb with a aldehyde of the formula IV in a solvent in the presence of a base, wherein the base is the alkali metal salt of an alcohol and the solvent is an alcohol.

Process for preparing pentafluoropentanol

4,4,5,5,5-Pentafluoro-1-pentanol is prepared in a particularly advantageous manner from perfluoroethyl iodide by initially adding perfluoroethyl iodide in the presence of a radical initiator which does not carry any acyl groups to allyl alcohol and then hydrogenolytically dehalogenating the resulting 4,4,5,5,5-pentafluoro-2-iodo-1-pentanol in the presence of a catalyst, an acid binder and a diluent.

Method for producing alkadienols

An improving method for producing alkadienols by reaction of conjugated alkadiene and water in the presence of carbon dioxide and a catalyst composed of a palladium compound and phosphine (or phosphite), wherein the by-products having high boiling point and the palladium catalyst are efficiently separated from the reaction product for re-use without impairing their effectiveness as the catalyst.

Process for the preparation of octadienols.

Ce procédé de préparation d'octa-2,7-diène-1-ol comporte la réaction d'hydrodimérisation du 1,3-butadiène avec de l'eau en présence d'un métal de transition sous forme métallique ou sous forme d'un composé dudit métal, d'au moins une phosphine et d'au moins un composé azoté. La phosphine est choisie parmi les arylphosphines sulfonées substituées de formule (I); le composé azoté est choisi parmi une amine tertiaire et un sel d'ammonium quaternaire de formule (II) ou (III); et l'on opère la réaction en présence de dioxyde de carbone. (CF DESSIN DANS BOPI) R = CH3 ou C2 H5 M = métal alcalin ou groupe ammonium quaternaire x = 0,1 ou 2 Rp , Rq et le cas échéant Rs , identiques ou différents, représentent chacun CH3 ou C2 H5 , Rr représentant alkyle en C6 -C2 2 , X- représentant un contre-anion.

Trimerization of acetylene and acetylene compound and catalyst system therefor

(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 preparing higher aliphatic alcohols

The synthetic method of 3 methyl, 3 butylene, 1 alcohol, catalyst and preparation method thereof

本发明涉及一种3‑甲基‑3‑丁烯‑1‑醇的合成方法、催化剂及其制备方法，涉及催化剂合成技术领域。该用于合成3‑甲基‑3‑丁烯‑1‑醇的催化剂的制备方法包括：将磷硅铝分子筛于300‑600℃焙烧3.5‑5h后，在碱性磷酸盐溶液中等体积浸渍后，陈化，干燥，焙烧，其操作简单，便于工业化生产，该方法制备的3‑甲基‑3‑丁烯‑1‑醇的催化剂，其催化效果佳，当该催化剂应用于3‑甲基‑3‑丁烯‑1‑醇的合成中时，有效提高3‑甲基‑3‑丁烯‑1‑醇的收率高，有效提高生产效率以及降低制备成本。

Synthesis of hydroxyl-terminated polybutadienes using glycol ether acetate solvents

SYNTHESIS OF HYDROXYL-TERMINATED POLYBUTADIENES USING GLYCOL ETHER ACETATE SOLVENTS (D#80,924-F) ABSTRACT OF THE DISCLOSURE Disclosed is an improvement in a process for polymerizing 1,3-butadiene selectively to form relatively low molecular weight hydroxyl-terminated polybutadiene oligomers in the presence of an aqueous solution of hydrogen peroxide which comprises the use of a solvent selected from the group consisting of alkylene glycol monoalkyl ether acetates and aliphatic glycol ether carboxylates to produce butadiene oligomers having a high degree of OH functionality and suppression of formation of solid or gel-type insoluble rubber by-products. CK924.app

PROCESS FOR THE PREPARATION OF AN ALKYNE HAVING AN OPTICALLY ACTIVE HYDROXYL GROUP IN THE POSITION B OR G OF A TRIPLE BINDING AND INTERMEDIATE PRODUCTS OBTAINED

La présente invention a pour objet un procédé de préparation d'un alcyne présentant un groupe hydroxyle optiquement actif en position beta ou gamma d'une triple liaison et produits intermédiaires obtenus.Le procédé de l'invention de préparation d'un alcyne présentant un groupe hydroxyle optiquement actif en position beta d'une triple liaison est caractérisé par le fait qu'il comprend la réaction, en présence d'un acide de Lewis :- d'un composé de formule (IV) de formule : dans ladite formule :- R représente un groupe alkyle linéaire ou ramifié ayant de 1 à 6 atomes de carbone,- et d'un composé de formule (V) de formule : dans ladite formule :- R' représente un atome d'hydrogène, un groupe alkyle linéaire ou ramifié ayant de 1 à 8 atomes de carbone, de préférence un groupe méthyle ou un groupe trialkylsilyle,- M représente un métal, de préférence, un métal du groupe (la) de la classification périodique, de préférence le lithium.Un autre objet de l'invention réside dans l'obtention d'un alcyne présentant un groupe hydroxyle optiquement actif en position gamma d'une triple liaison par isomérisation d'un alcyne présentant un groupe hydroxyle optiquement actif en position beta précédemment obtenu. The subject of the present invention is a process for the preparation of an alkyne having an optically active hydroxyl group in the beta or gamma position of a triple bond and the intermediate products obtained.The process of the invention for the preparation of an alkyne having a group optically active hydroxyl in the beta position of a triple bond is characterized in that it comprises the reaction, in the presence of a Lewis acid: a compound of formula (IV) of formula: in said formula: R represents a linear or branched alkyl group having from 1 to 6 carbon atoms, and a compound of formula (V) of formula: in said formula: R 'represents a hydrogen atom, a linear alkyl group or branched compound having from 1 to ...

PROCEDURE TO PREPARE 4,4,4-TRICLOROBUTANOL.

SE EXPONE UN PROCESO PARA LA PREPARACION DE 4,4,4 TRICLOROBUTAN - 1 - OL, QUE COMPRENDE HACER REACCIONAR ALCOHOL ALILICO CON CLOROFORMO, EN PRESENCIA DE UN INICIADOR RADICAL. EL ALCOHOL ALILICO SE AÑADE PREFERENTEMENTE DE FORMA PROGRESIVA AL CLOROFORMO DURANTE EL PERIODO DE LA REACCION. A PROCESS FOR THE PREPARATION OF 4,4,4 TRICLOROBUTAN - 1 - OL IS EXPOSED, WHICH INCLUDES MAKING REACTION OF ALYLIC ALCOHOL WITH CHLOROFORM, IN THE PRESENCE OF A RADICAL INITIATOR. ALILICO ALCOHOL IS PREFERRED ADDITIONALLY TO CHLOROFORM DURING THE REACTION PERIOD.

Manufacture of 7-methyl-3-methylene-7-octene- 1-yl propanoate

(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。

Manufacture of alcohols

Saturated aliphatic alcohols are prepared by a process which includes heating to at least 260 DEG C. a saturated aliphatic alcohol containing up to 11 carbon atoms with an olefine which is gaseous under normal temperature and pressure, in the presence of an aliphatic, cycloaliphatic, araliphatic or arylsulphide as an initiator. Examples describe the production of mixtures of alcohols by reacting methanol with ethylene in the presence of one of di-(a -phenyl ethyl), dimethyl, diethyl, dipropyl, dibutyl or di-tert.-butyl sulphide or one of 2,3,7,7-tetramethyl-3,6 -dithio-octane or 1,3,5-trithiacyclohexane.

METHOD OF SYNTHESIS 9,9-BIS (HYDROXYMETHyl) FLUORENE

Настоящее изобретение относится к новому способу синтеза 9,9-бис(гидроксиметил)флуорена. Известен синтез из флуорена с получением промежуточного 9,9-бис(гидроксиметил)флуорена путем гидроксиметилирования и последующим получением 9,9-бис(метоксиметил)флуорена путем этерификации. 9,9-Бис(метоксиметил)флуорен - это соединение, применяемое в качестве донора электронов в катализаторах Циглера-Натта. Настоящее изобретение относится к усовершенствованию синтеза 9,9-бис(гидроксиметил)флуорена, позволяющему снижать количество используемого растворителя и упрощать последующую обработку, и при этом получать высокие выход и степень чистоты. The present invention relates to a new method for the synthesis of 9,9-bis (hydroxymethyl) fluorene. Known synthesis from fluorene to produce intermediate 9,9-bis (hydroxymethyl) fluorene by hydroxymethylation and then obtain 9,9-bis (methoxymethyl) fluorene by esterification. 9,9-Bis (methoxymethyl) fluorene is a compound used as an electron donor in Ziegler-Natta catalysts. The present invention relates to the improvement of the synthesis of 9,9-bis (hydroxymethyl) fluorene, allowing to reduce the amount of solvent used and to simplify subsequent processing, and thus to obtain high yield and purity.

Prince reaction on hindered substrates

Cyclopropane derivatives

Process for producing fluorinated alcohol

A process for producing a high-purity fluorinated alcohol in a good purification yield, is provided. In a process for producing a fluorinated alcohol, which comprises reacting methanol with tetrafluoroethylene or hexafluoropropylene in the presence of an alkyl peroxide, the reaction liquid after completion of the reaction is distilled in the presence of water and HF to separate it into a fraction containing an alcohol derived from the alkyl peroxide and a bottom liquid containing the fluorinated alcohol, and then, the bottom liquid is purified to recover the fluorinated alcohol.

Process for producing fluoroalcohol

一种通过将甲醇与四氟乙烯或六氟丙烯在一种自由基发生体的存在下反应而制造由通式(1)表示的氟代醇的方法：H(CFR 1 CF 2 ) n CH 2 OH (1)(其中当n＝1时，R 1 代表F或CF 3 ；当n＝2时，R 1 代表F)，该方法包括下列步骤：将反应混合物加入到蒸馏柱中；从蒸馏柱顶部蒸去甲醇；从蒸馏柱底部将含有氟代醇的底部馏份取出；将含有水和HF的馏份从蒸馏柱的侧口分出；将蒸馏柱顶部的甲醇返回到反应器中进行再循环；和纯化所述底部馏份以回收由式(1)表示的氟代醇。

Fluorine-containing polyols and process for preparing thereof

Fluorine-containing polyols obtained by the free radical addition of a fluoro-olefin having the general formula: <CHEM> wherein Y represents F and Z represents Cl or F(CF2)n- wherein n is an integer from 0 to 10 or Y and Z together form a -(CF2)m- chain wherein m represents an integer from 2 to 4 to a polyol wherein each hydroxyl group is directly attached to a group of the formula: -(CH2)pO - (2) wherein p is an integer of at least 4. a

Method for producing alkenoles

Process for preparing higher aliphatic alcohols

A mixture of saturated alcohols of which the major proportion consists of alcohols having 10 to 20 carbon atoms are obtained by the telomerization of ethylene with saturated aliphatic alcohols containing 1 to 6 carbon atoms in the presence of an alkyl halide optionally in the presence of a metal and/or a free-radical initiator such as di-ter-butyl peroxide. Specified aliphatic alcohols are methanol, ethanol, iso-propanol and iso-butanol. The telomerization of ethylene with methanol in the presence of magnesium, tin or cobalt metals is exemplified while zinc, lead, copper, chromium, molybdenum, manganese, iron or nickel may also be used. The reaction is carried out in an autoclave at a temperature of 80-120 DEG C. under 20-50 atmospheres and the constitution of the mixture of alcohols obtained is given.

Process for preparing alkanediol

提出一种通过亚烷基二醇在烯烃上的自由基链加成反应制备长链1,2‑和1,3‑链烷二醇的方法。

Patent DE4205115C1

Method for preparing a mixture of alcohols

本发明涉及一种用于制备包括至少一种醇(Aj)的混合物(M)的方法，其中所述方法包括用掺杂有一种或多种金属的固体酸-碱催化剂的至少一种醇(Ai)的气相低聚反应，所述反应是在氢的存在下并且在不小于50℃并严格地小于200℃的温度下进行的。

Process for producing octa-2,7-dien-1-ol

An improved process for producing octa-2,7-dien-1-of by reacting butadiene with water is provided. The butadiene/ water reaction is carried out in an aqueous sulfolane solution containing a carbonate and/or bicarbonate of a monodentate tertiary amine having a basicity constant (pKa) of at least 7 in the presence of a palladium compound and a phosphonium salt, while maintaining the mole ratio of butadiene to octa-2,7-dien-1-01 at at least 0.6, to synthesize octa-2,7-dien-1-01. The octa-2,7-dien-1-of is extracted and part of the extraction residue containing catalyst is returned to the synthesis step. The extract containing octa-2,7-dien-1-01 is washed with an aqueous sulfolane solution in the presence of a water-soluble phosphine and separating the mixture into the aqueous sulfolane solution layer and the washed extract layer and part of the aqueous sulfolane solution layer obtained during washing is returned to the extraction step. The washed extract layer is washed to obtain the final product.

Patent JPH0541612B2

Process for the preparation of 7-methyl-3-methylene-obtain-1-yl-propionate

Process for preparing octanediols

A method comprising a hydrodimerising reaction of 1,3-butadiene with water in the presence of a transition metal in the form of a metal or compound thereof, a tertiary or quaternary water-soluble phosphorus compound and at least a nitrogen compound, characterized in that the nitrogen compound is chosen from tertiary amine and a quaternary ammonium salt of general formula (I) or (II), wherein each of Rp, Rq and, if required Rs, which are the same or different, is a methyl or ethyl group, group Rr is C6-22 alkyl, group X<-> is a counter anion chosen from HCO3<->, CO3<2->, HSO3<->, SO3<2->, SiO3<2->, PO4<3->, HPO3<2->, AsO4<3->, SO4<2->, HSO4<->, RSO3<->, RCO2<->, OH<->, and R is an alkyl group; and in that said reaction is carried out in the presence of carbon dioxide.

Prins reaction on hindered substrates

Palladium complex process for the preparation thereof and catalyst usable for producing 1,3-diene oligomers

The palladium complex disclosed herein is bis[tri(ortho-tolyl)phosphine] :palladium which is produced by reacting a palladium salt with tri(ortho-tolyl)phosphine and reducing the resultant bis[tri(ortho-tolyl)phosphine] palladium salt with an alcoholic alkali. This complex is useful as a catalyst for the production of 1,3-diene oligomers.

Synthesis of hydroxyl-terminated polybutadienes using glycol ether solvents

Disclosed is an improvement in a process for polymerizing 1,3-butadiene selectively to form relatively low molecular weight hydroxyl-terminated polybutadiene oligomers in the presence of an aqueous solution of hydrogen peroxide which comprises the use of a glycol ether solvent to produce butadiene oligomers having a high degree of OH functionality and suppression of formation of solid or gel-type insoluble rubber by-products.

Halogenated s-(perfluoroalkyl) dibenzothiophenium salt and its production methods

Halogenated S-(perfluoroalkyl) dibenzothiophenium salt represented by the following general formula (I). This compound is a new, reactive, and industrially useful reagent for perfluoroalkylating organic compounds. The reagent can be prepared by a one-pot process or a two-step reaction process from a halogenated biphenyl and easily isolated by a filtration method. In addition, the halogenated biphenyl can be recovered by desulfurization from a halogenated dibenzothiophene obtained as a side-product by the usage of the reagent.

Method of preparing fluoroalcohol

Изобретение относится к способу получения фторспирта следующей формулы 1: H(CFR 1 CF 2 ) n CH 2 OH (n равно 1 или 2, R 1 представляет F или CF 3 , когда n = 1; R 1 представляет собой F, когда n = 2) путем взаимодействия метанола с тетрафторэтиленом или гексафторпропиленом в присутствии инициатора. Причем фторспирт формулы 1 перегоняют после разложения остаточного инициатора, содержащегося в реакционной смеси. В результате получается чистый фторспирт, который пригоден для использования средств записи информации. 2 з.п. ф-лы.

Method for preparing octadienols

Method for producing olefin-substituted aromatic or heteroaromatic compounds

Both low-molecular and high-molecular aromatic or heteroaromatic compounds, which are substituted with olefins, play an important role in industry, for example as auxiliary agents or additives in cosmetic preparations such as sunscreen agents, in diverse fine chemicals and chemicals for the electronics industry and in intermediate products for the pharmaceutical and agrochemical industries. Such compounds are of outstanding importance particularly in the rapid-growth field of organic semiconductors, (e.g. for use in organic or polymer LEDs, organic solar cells and organic integrated circuits). The invention relates to a method for producing olefin-substituted aromatic or heteroaromatic compounds of this type, by reacting a functional aryl or heteroaryl compound with an olefin derivative, which has at least one H-atom on its double bond, in the presence of a simple palladium compound, optionally in the presence of an additive containing nitrogen and of a base in a solvent, to form a C-C-linkage and a formal splitting-off of the aryl, or heteroaryl derivative functional group and of one H-atom of the olefin compound. The invention is characterised by the presence of at least one additive containing metal, which is different from palladium.

POLYOL.

METHOD FOR PRODUCING OCTADIENOLS

PROCESS FOR THE PREPARATION OF A MIXTURE OF ALCOHOLS

La présente invention concerne un procédé de préparation d'un mélange (M) comprenant au moins un alcool (Aj), ledit procédé comprenant une réaction d'oligomérisation en phase gaz d'au moins un alcool (Ai), réalisée en présence d'hydrogène, et d'un catalyseur solide acido-basique dopé par un ou plusieurs métaux, à une température supérieure ou égale à 50°C et strictement inférieure à 200°C.

Process for producing 1,3-glycole from epoxide

Method of producing 1,3-propanediol or 1,3-butanediol

A process for manufacturing 1,3-glycols is disclosed. The process comprises reacting an epoxide with synthesis gas in an acidic medium in the presence of rhodium and a phosphine.

Polyols

Fluorine-containing polyols obtained by the free radical addition of a fluoro-olefin having the general formula: wherein Y represents F and Z represents Cl or F(CF₂)n- wherein n is an integer from 0 to 10 or Y and Z together form a -(CF₂)m- chain wherein m represents an integer from 2 to 4 to a polyol wherein each hydroxyl group is directly attached to a group of the formula: -(CH₂)pO -      (2) wherein p is an integer of at least 4.