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| Number | Title | Issue Date |
| 8110711 | Processes for production of 2-bromo-2,2-difluoroethanol and 2-(alkylcarbonyloxy)-1,1-difluoroethanesulfonic acid salt Disclosed is a process for producing 2-bromo-2,2-difluoroethanol, which comprises reducing a bromodifluoroacetic acid derivative represented by the formula [1] by using an ate hydride complex as a reducing agent. 2-Bromo-2,2-difluoroethanol thus produced can be used... | 02/07/2012 |
| 7902409 | Production of difluoroethanol Difluoroethanol is produced by hydrogenation, in the presence of an effective amount of a catalyst containing at least one element of Group VIII of the Periodic Table deposited onto a solid, acidic mineral support, of an acetyl halide having the following formula (I... | 03/08/2011 |
| 7897821 | Sulfonium compound A compound is shown by the following formula (5) in which at least one of Rf groups represents a fluorine atom or a linear or branched perfluoroalkyl group having 1 to 10 carbon atoms, A′ represents a substituted or unsubstituted, linear or branched alk... | 03/01/2011 |
| 7767866 | Precursors 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 olefins that can be readily polymerized to provide fluoroalkanol-substitut... | 08/03/2010 |
| 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 by-products. The present invention provides a process for producing a fl... | 11/10/2009 |
| 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 bis(2-perfluoroalkylethyl)sulfate. Then, in a first hydrolysis step, 2-perfluoroalkyle... | 08/11/2009 |
| 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; introducing the liquid feed stream to a reactor containing an immobilized hydro... | 04/28/2009 |
| 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 (R1CHXCH2O—)2SO2 to R2COOH to produce R1CHXCH2COOR2 | 11/25/2008 |
| 7442828 | Precursors 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 olefins that can be readily polymerized to provide fluoroalkanol-substitut... | 10/28/2008 |
| 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 than sevoflurane itself, that has an intact 1,1,1,3,3,3-hexafluoroiso... | 05/20/2008 |
| 7335347 | Methods for purifying radiolabelled compounds One aspect of the present invention relates to a method of purifying radiolabelled compounds comprising a) loading onto a fluorous polymer a radiolabelled compound precursor comprising a fluoroalkyl tin moiety; b) reacting the radiolabelled compound precursor with a... | 02/26/2008 |
| 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; and a process for producing an optically active fluoroalcohol through ... | 12/11/2007 |
| 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 to increased yields of 2,2,2 -trifluoroethanol, facilitates the sepa... | 04/24/2007 |
| 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 R1 represents a hydrogen atom or an acyclic or cyclic alkyl group having a carbon atom number of 1 to 7; R... | 04/17/2007 |
| 7132574 | Preparation of perfluoropolyethers having at least one —CHOH or —CH(CF)OH end group A process for preparing perfluoropolyethers having at least one —CH2OH or —CH(CF3)OH end group by reaction of the corresponding pefluoropolyethers having at least one carboxylic —COOH or ketonic —(CF3)C═O end group with gas... | 11/07/2006 |
| 7098166 | Catalyst for preparing fluorine-containing alcohol compound and a process for preparation of fluorine-containing alcohol compound A process for preparing a fluorine-containing alcohol compound, the process comprising the step of reacting water with a halogenated fluorine compound in the presence of a catalyst for preparing a fluorine-containing alcohol compound, the catalyst obtained by suppor... | 08/29/2006 |
| 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 mixture containing a fluorinated hydroxyl compound of Rf—CR | 01/31/2006 |
| 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 between 0.5 and 1.0 nm, e.g., with molecular sieve 13X. This enables, f... | 01/31/2006 |
| 6992224 | Manufacture of fluorinated alcohols Present invention relates to a process for the manufacture of fluorinated alcohols as well as borates which are employed in the manufacture of the fluorinated alcohols. Fluorinated alcohols of the formulae HOCHRCF(CF3)CHFCF(CF3)2 and... | 01/31/2006 |
| 6987204 | 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 than sevoflurane itself, that has an intact 1,1,1,3,3,3-hexafluoroiso... | 01/17/2006 |
| 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 example, the halogenated alcohol has the formula CF3(CF2... | 10/18/2005 |
| 6930212 | 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 mixture containing a fluorinated hydroxyl compound of Rf—CR | 08/16/2005 |
| 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 tetrafluoroethylene or hexafluoropropylene in the presence of an alky... | 05/17/2005 |
| 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 eliminates the need to use heavy metals and other toxic compounds that are... | 05/17/2005 |
| 6861565 | 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 t... | 03/01/2005 |
| 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 the elements in Group 1B, Group 2B, Group 6A, Group 7A and Group 8 of t... | 02/15/2005 |
| 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 trifluoromethylation of sulfates. ... | 08/03/2004 |
| 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 25-50° C. and a pressure of 100-300 psi in an autoclave. An inert gas su... | 05/25/2004 |
| 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 non-perfluorinated fluoroolefin with methanol under ambient-pressure... | 01/06/2004 |
| 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, Group 7A and Group 8 of the periodic table, ions of these el... | 12/16/2003 |
| 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 alkaline solutions. These phenoxy fluoro-alcohols comply with ... | 05/20/2003 |
| 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): Cn F2n+1 --A--CH2 OCH2 --C(CH2 OH)2 --R in which n has a... | 01/14/2003 |
| 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 an organic dye layer formed by using the fluorinated alco... | 11/26/2002 |
| 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 yields.... | 11/12/2002 |
| 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 alkane with an alkyl vinyl ether to form an unsaturated hal... | 11/05/2002 |
| 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 higher under a gauge pressure of 0.4 MPa or higher: ##STR1... | 06/25/2002 |
| 6392105 | Process for production of fluoroalcohol The invention provide a method for producing a fluoroalcohol of the following formula (1): H(CFR1 CF2)n CH2 OH (1) (wherein R1 represents F or CF3, when n=1; R1 represents F, when n=... | 05/21/2002 |
| 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 CF3 (CF2)h --I, where h is an integer from 4 to 18, with a compound having a terminal olefinic group, which comprises conducting s... | 04/02/2002 |
| 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 group. Methods of preparation and use are also described.... | 04/02/2002 |
| 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 second transition metal is selected from the group comprisi... | 02/26/2002 |
