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7615669 |
Process for producing fluoro-compounds
The present invention provides a process for producing highly pure fluoro-compounds by making use of N-(2-chloro-1,1,2-trifluoroethyl)diethylamine. The process produces little or no chlorinated...
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7598425 |
Method for producing hydrate of fluoroalkyl ketone
The present invention relates to a method for producing a compound represented by formula (2):
[CF 3 (CF 2 ) n ][CF 3 (CF 2 ) m ]C(OH) 2 ...
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7572940 |
Process for producing 2-perfluoroalkylethyl alcohol
In a first sulfation step, 2-perfluoroalkylethyl iodide is brought into contact with fuming sulfuric acid to obtain a reaction mixture comprising 2-perfluoroalkylethyl sulfate and...
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7566801 |
Polyfluoroalkyl alcohol, or (METH)acrylic acid derivative thereof, and process for producing the same
A polyfluoroalkyl alcohol, or a (meth)acrylic acid derivative thereof, represented by the following general formula:
C n F 2n+1 (CH 2 CF...
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7524995 |
Continuous process to produce hexafluoroisopropanol
A continuous process for producing hexafluoroisopropanol is provided which comprises contacting hexafluoroacetone with hexafluoroisopropanol and hydrogen to produce a liquid feed stream;...
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7521582 |
Percursors to fluoroalkanol-containing olefin monomers, and associated methods of synthesis and use
The invention provides alkene fluoroalkanol and fluorinated polyol precursors to fluoroalkanol-substituted α,β-unsaturated esters. The fluoroalkanol-substituted α,β-unsaturated esters are...
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7462734 |
Process for production of optically active α-fluoro-carboxylic ester derivatives
The present invention relates to a process for producing an optically active α-fluorocarboxylate derivative represented by the formula [2],
by reacting an optically active...
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7456324 |
Methods for preparing halohydrins and methods for preparing epoxides
The invention includes methods for preparing halohydrins and epoxides. A method of preparing halohydrins can include exposing (R 1 CHXCH 2 O—) 2 SO 2 to R 2 COOH to produce R 1 CHXCH 2 COOR 2 ...
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7375254 |
Process for recovery of 1,1,1,3,3,3-hexafluoroisopropanol from the waste stream of sevoflurane synthesis
Provided is a process of obtaining 1,1,1,3,3,3-hexafluoro-2-propanol (“HFIP”) from a composition comprising an HFIP hydrolyzable precursor. The HFIP hydrolyzable precursor is a compound, other...
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7307185 |
Process for producing optically active fluorochemical
The present invention provides a process for producing an optically active fluoro compound represented by formula (3) through reaction between a specific fluoroamine and an optically active diol;...
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7208641 |
Method for producing 2,2,2-trifluoroethanol
A method for producing 2,2,2-trifluoroethanol in which a γ-hydroxybutyric acid salt is reacted with 1,1,1-trifluoro-2-chloroethane to generate 2,2,2-trifluoroethanol is provided. This method leads...
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7205443 |
Processes for producing fluorine-containing 2,4-diols and their derivatives
A process for producing a fluorine-containing 2,4-diol represented by the formula [4],
wherein R 1 represents a hydrogen atom or an acyclic or cyclic alkyl group having a carbon atom number of...
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6992229 |
Method for purifying a fluorinated hydroxyl compound
The present invention has an object to provide a method for purifying a fluorinated hydroxyl compound of the formula 1 safely in a high yield under industrially practical conditions. Namely, a...
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6992213 |
Method for removing trifluoroethanol from liquids
Trifluoroethanol can be isolated from organic liquids that are contaminated by trifluoroethanol by bringing the contaminated liquid into contact with a molecular sieve having a pore size ranging...
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6956140 |
Hydrothermal hydrolysis of halogenated compounds
A process for preparing a halogenated alcohol comprising hydrolyzing a halogenated precursor of the halogenated alcohol in water at a temperature near but below the critical point of water. For...
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6894197 |
Process for producing fluorinated alcohol
A method for producing fluorinated alcohols from fluorinated alkyl halides can produce fluorinated alcohols at high product yield and at high selectivity in a single-step reaction. The method...
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6894196 |
Process for producing a 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...
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6861565 |
Process for producing a fluoroalkanol
A process for producing a fluoroalkanol which can easily be industrially practiced with high selectivity, is provided. CHR 1 R 2 OH, a radical initiator and CF 2 ═CFR f are continuously...
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6855662 |
Catalyst for preparing fluorine-containing alcohol compound and a process for preparation of fluorine-containing alcohol compound
A catalyst for preparing a fluorine-containing alcohol compounds, the catalyst is obtained by supporting an ammine complex containing at least one component selected from the group consisting of...
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6770789 |
Process for trifluoromethylation of sulfates
The subject invention relates to a process for the trifluoromethylation of sulfates, including cyclic and acyclic sulfates. The subject invention further pertains to the compounds produced by the...
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6740786 |
Method for the preparation of 2, 2, 3, 4, 4, 4-hexafluoro-1-butanol
The method for preparing 2,2,3,4,4,4-hexafluoro-1-butanol includes reacting methanol and hexafluoropropene in the presence of a free radical initiator such as di-isopropyl peroxydicarbonate at...
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6673976 |
Process of making fluorinated alcohols
Provided are methods of producing fluorinated alcohols from non-perfluorinated fluoroolefins and methanol. Certain preferred embodiments of such methods involve advantageously reacting a...
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6664430 |
Catalysts for the preparation of fluorinated alcohols and process for the preparation of fluorinated alcohols
The present invention provides a catalyst for preparing a fluorine-containing alcohol compound, the catalyst having at least one component selected from elements in Group 1B, Group 2B, Group 6A,...
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6566561 |
Fluoro-alcohol phase modifiers and process for cesium solvent extraction
The invention relates to a class of phenoxy fluoro-alcohols, their preparation, and their use as phase modifiers and solvating agents in a solvent composition for the extraction of cesium from...
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6506947 |
Fluorinated diol and method for the production thereof
The subject-matter of the invention is a fluorinated diol and its process of preparation. The fluorinated diol corresponds to the formula (I): C n F 2n+1 —A—CH 2 OCH 2 —C(CH 2 OH) 2 —R in...
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6485888 |
Fluorinated alcohol for manufacturing optical recording medium and optical recording medium using the same
The present invention provides a fluorinated alcohol for manufacturing an optical recording medium that is superior in the characteristics and weatherability, and an optical recording medium having...
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6479712 |
Method for preparing perfluorocarbon-substituted methanols
Methods for producing perfluorocarbon monomethanols or dimethanols are disclosed. The methods of the invention can provide branched perfluorocarbon monomethanols or dimethanols with good purity and...
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6476279 |
Method of making fluorinated alcohols
Disclosed are methods of producing fluorinated alcohols which find particular use in the syntheses of pharmaceutical drugs. The methods comprise generally, the steps of (a) reacting a halogenated...
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6410808 |
Method for producing a fluoroalcohol
A method for producing a fluoroalcohol of the following formula 1a, which comprises reacting a compound of the following formula 1 with water in a liquid phase at a temperature of 150° C. or...
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6392105 |
Process for production of fluoroalcohol
The invention provide a method for producing a fluoroalcohol of the following formula (1): H(CFR 1 CF 2 ) n CH 2 OH (1) (wherein R 1 represents F or CF 3 , when n=1; R 1 represents F, when n=2)...
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6365769 |
Perfluoroalkyl halides and derivatives
Novel mixtures of perfluoroalkyl halides and derivatives thereof are described. These mixtures contain some compounds with a straight perfluoroalkyl group and some with a branched perfluoroalkyl...
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6365676 |
Poly-perfluoroalkyl substituted polyamines as grease proofing agents for paper and foam stabilizers in aqueous fire-fighting foams
The invention concerns a process for the reaction of a perfluoroalkyl iodide of the formula CF 3 (CF 2 ) h —I, where h is an integer from 4 to 18, with a compound having a terminal olefinic...
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6350922 |
Process for making 2,3-dihalopropanols
A process for making 2,3-dihalopropanol including reacting 2,3-dihalopropanal with a hydrogenating agent in the presence of an iridium and a second transition metal mixed metal catalyst where the...
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6313357 |
Method for recovering fluoroalcohol
In a method for recovering a fluoroalcohol from a mixture comprising a fluoroalcohol and water, (i) a method for recovering a fluoroalcohol by distilling the mixture comprising the fluoroalcohol...
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6294704 |
Method for manufacturing fluoroalcohol
The invention relates to a method for manufacturing a fluoroalcohol represented by formula (1) H(CFR 1 CF 2 ) n CH 2 OH (1) (wherein R 1 represents F or CF 3 , when n=1; R 1 represents F,...
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6245953 |
Method for recovering fluorine-containing solvents
In a method for recovering a fluorine-containing solvent from the mixture comprising the fluorine-containing solvent and dyes, (i) a method for recovering a fluorine-containing solvent by...
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6187969 |
Process for producing fluoroalcohol
A process for producing a fluoroalcohol of the following formula (1) H(CFR 1 CF 2 ) n CH 2 OH (1) (n=1 or 2, wherein R 1 represents F or CF 3 when n=1; R 1 represents F when n=2)...
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6111130 |
Process for the preparation of trifluoromethyl containing derivatives
The present invention relates to a process for the preparation of trifluoromethylated derivatives of the formula CF 3 CClCHCH 2 OC(O)R, wherein R is unsubstituted or substituted C 1 to C 6...
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6025531 |
Processes for preparing optically active alcohols and optically active amines
A process for preparing an optically active alcohol by reacting a prochiral ketone corresponding to the optically active alcohol and an acid with a mixture of (1) a boron-containing compound...
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6002053 |
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...
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5942646 |
Optically active alcohol and process for the production thereof
A novel R-configuration or S-configuration optically active alcohol of the formula (1), CF 3 C*H(OH)(CH 2 ) m OCH 2 CH n F 3 -n(1) wherein C* is an asymmetric carbon atom, m is an integer of...
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5929292 |
Distillation column type production method
A production method which comprises reacting one or more feedstock compounds to form a desired compound having a boiling point higher than the feedstock compounds, wherein the reaction is carried...
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5929284 |
Processes for producing α-halo ketones, α-halohydrins and epoxides
Processes for efficiently producing α-halo ketones, α-halohydrins and epoxides on an industrial scale. The prosesses include one for producing an α-halo ketone of general formula (3) by...
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5777184 |
Preparation of fluoroalkyl compounds and their derivatives
A process for producing a fluorinated olefin having the formula: CH 3 -a F a CHCHCl where a=1,2 or 3, said process comprising catalytically reacting a chlorinated organic compound with a...
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5763552 |
Hydrogen-containing flourosurfacant and its use in polymerization
A partially-fluorinated surfactant having internal methylene groups and having the formula R f --(CH 2 ) m --R' f --COOM wherein m is 1-3, R f is perfluoroalkyl or perfluoroalkoxy, containing...
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5756849 |
Process for grafting a substituted difluoromethyl group onto a compound containing an electrophilic functional group
The invention relates to a process and a nucleophilic reagent which is useful for grafting a substituted difluoromethyl group onto a compound containing at least one electrophilic function,...
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5753776 |
Liquid-phase fluorination
This invention pertains to a method for liquid phase fluorination for perfluorination of a wide variety of hydrogen-containing compounds.
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5741955 |
Process for reductive hydrolysis of nitriles
This invention concerns processes for the reductive hydrolysis of nitriles to alcohols utilizing as a catalyst a transition metal complex of the formula MHZ(CO)L n (PR 3 ) 2 wherein: M is a...
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5705713 |
Preparation of fluoro compounds
Fluoro compounds are made by reaction of an activated oxy-acid ester or cyclic ether starting material with hydrogen fluoride in the presence of an organometallic compound.
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5629458 |
Process for the preparation of 2 2 2 trifluoroethanol
A vapor phase process for producing a fluorinated alcohol, such as 2,2,2-trifluoroethanol via oxidation of an hydrofluorocarbon, such as 1,1,1-trifluoroethane, with an oxidizing agent and elemental...
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