Patents
Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242)
12/2004
12/02/2004US20040242947 Method for producing 1-olefins using palladium-carbene compounds
12/02/2004US20040242799 Reacting paraformaldehyde with hydrogen bromide to form bis-bromomethyl ether as chemical intermediates; reacting biphenyl to form 4,4'-bis-(bromomethyl)-biphenyl, futher reacting with triethylphosphite to form 4,4'-bis-(diethylphosphonomethyl)-biphenyl; less hazardous, two stage processes
12/02/2004US20040242696 Anticancer agent having a quinone, quinone prodrug, catechol or catechol prodrug moiety; free of combretastatin A-1
12/01/2004EP1480988A1 Reagents for asymmetric allylation, aldol, and tandem aldol and allylation reactions
12/01/2004EP1480932A2 Method for production of beta-cryptoxanthin and alpha-cryptoxanthin from commercially available lutein
12/01/2004CN1551864A Method of producing reduced coenzyme Q10
12/01/2004CN1551863A Method of producing reduced coenzyme Q10 as oily product
12/01/2004CN1551862A Method of crystallizing reduced coenzyme Q sb 10 /sb from aqueous solution
12/01/2004CN1550481A Method for preparing fluoether compound
11/2004
11/30/2004US6825385 Reacting trichloroacetonitrile with an alkali or alkaline earth metal salt of an aliphatic alcohol; oxidation; solvent extraction; distillation
11/30/2004US6825383 Catalytic process for regiospecific chlorination of alkanes, alkenes and arenes
11/30/2004US6825377 Catalytic oxidation using oxygen or gas mixture in presence of osmium, ruthenium, or manganese compound in water; adding amine for catalyst selectivity
11/25/2004WO2004101484A1 Adamantane derivative and method for production thereof
11/25/2004WO2004089537A3 An olefin epoxidation process and a catalyst for use in the process
11/25/2004US20040236154 Reducing an oxidized coenzyme Q10 in an aqueous medium with use of hyposulfurous acid, dithionous acid or a salt thereof in the coexistence of a salt and/or under deoxygenated atmosphere, and at pH of 7 or below; useful as an ingredient in foods, functional nutritive foods, drugs, cosmetics
11/25/2004US20040236131 from aqueous solution or vapor streams of wastes or by-products; contacting with electrophilic compound ; separation
11/25/2004US20040235645 1,3-Diethers and components and catalysts for the polymerization of olefins, containing said diethers
11/24/2004EP1478616A1 Indanes and indanones and their use in perfumery
11/24/2004EP1478609A2 Modified method for producing surfactant alcohols and surfactant alcohol ethers, the products of said method and use of the same
11/24/2004CN1549802A Process of removing contaminants from an olefin stream using extractive distillation
11/24/2004CN1548411A Separation method of dimethyl ether prepared with synthetic gas through one-step process
11/24/2004CN1176885C C13 alcohol mixture and functionalized C13 alcohol mixture
11/24/2004CN1176742C Dual-function catalyst for preparing dimethylether directly from synthetic gas and its preparing process
11/23/2004US6822125 Selective removal of water vapor generated by dehydration and cetherification of methanol; catalysis
11/23/2004US6822009 Contact a decomposition material which decomposes the waste cured resins having a oxazolidone, urethane, amino or ester bond to eliminate the crosslinker and 3-dimensional structure and form a vinyl group; reuse
11/23/2004US6821783 Transition metal complexes as linkers
11/23/2004CA2070595C Process for isomerizing linear olefins to isoolefins
11/18/2004US20040230080 Economical reductive hydrogenation of carboxylic or ketonic end group with hydrogen and carbon supported ruthenium or rhenium metal catalyst
11/18/2004US20040229846 P-chiral phospholanes and phosphocyclic compounds and their use in asymmetric catalytic reactions
11/18/2004DE10319452A1 Kontinuierliches Verfahren zur Herstellung von Methylvinylether A continuous process for the preparation of methyl
11/17/2004EP1477509A1 Preparation of perfluoropolyethers having at least one -CH2OH or -CH(CF3)OH end group
11/17/2004CN1546448A Method for gas catalytic synthesis of para-methyl methyl phenate
11/17/2004CN1546447A Method for gas-phase synthesis of meta-methyl methyl phenate
11/17/2004CN1176056C Synthesis process of alkoxy phenol and its analogues
11/17/2004CN1176055C Process for producing 4-methoxyl methyl-2,3,5,6-tetrafluorobenzenemethanol
11/15/2004CA2467152A1 Preparation of perfluoropolyethers having at least one -ch2oh or -ch(cf3) oh end group
11/11/2004WO2004096866A2 Processes for recovering oligomers of glycols and polymerization catalyst from waste streams
11/11/2004WO2004096741A2 Continuous method for producing methyl vinyl ether
11/11/2004US20040225160 Process for functionalizing a double bond
11/11/2004US20040225121 Labeling using deuterium, tritium with catalyst
11/11/2004US20040224902 Process for obtaining lignans
11/10/2004EP1475363A1 Method for stabilizing reduced coenzyme q 10 and composition therefor
11/10/2004EP1474371A2 Integrated process for synthesizing alcohols, ethers, and olefins from alkanes
11/10/2004EP1474369A1 Method for production of a liquid composition of an ortho-dihydroxybenzyl compound of high purity and said composition
11/10/2004EP1406852B1 Method for telomerizing non-cyclic olefins
11/10/2004EP1385811B1 Process for the production of fluoromethyl hexafluoroisopropyl ether
11/10/2004CN1545530A Process for purification of crude polyether and adsorbent
11/10/2004CN1544406A Ethylene glycol diarylether preparation method
11/10/2004CN1174945C Three step process for producing light olefins by methane and/or ethane
11/09/2004US6815530 End group modified polyoxyethylene glycol
11/04/2004WO2004094357A1 Method for producing ether using solid acid catalyst
11/04/2004WO2004094356A1 Iodinated organic substances of low molecular mass and process for preparing them
11/04/2004WO2004094355A2 Selective dimethylether recovery and recycle in a methanol-to-olefin process
11/04/2004WO2004094346A2 Purification of solvents used for the purification of alkylene oxide
11/04/2004WO2004094025A2 Method of removing hexafluoropropylene dimers
11/04/2004US20040220409 Reacting 4-fluoro-1-bromobenzene (VI) with 2,2,2-trifluoroethanol in the presence of a base and a copper-containing catalyst
11/04/2004US20040219350 Fluorinated polyethers as nonionic surfactants, foam control agents, and/or rheology modifiers
11/03/2004EP1473275A1 Metallized mesoporous silicate and method of oxidation with the same
11/03/2004EP1226105A4 Method for preparing chiral ester
11/03/2004CN1543449A Solvents containing cycloalkyl alkyl ethers and process for production of the ethers
11/03/2004CN1541993A Process for continuously preparing acetals of alpha, beta-dicarbonyl compounds
11/03/2004CN1173903C Efficient ring-opening method for ternary nitrogenous or oxygenous small-ring compound
11/02/2004US6812244 Naphthyl compounds, intermediates, compositions, and methods of use
11/02/2004CA2129040C Styryl derivatives and processes for their preparation
10/2004
10/28/2004WO2004092106A2 Process for preparing alkoxy- and aryloxy-phenols
10/28/2004WO2004092105A1 Novel uv-curable perfluorinated, multifunctionalized acrylates monomers, copolyacrylates and their synthetic methods for photonic devices
10/28/2004WO2004092104A1 Process for producing 2-(l-menthoxy)ethanol compound
10/28/2004US20040215043 Selective dimethylether recover and recycle in a methanol-to-olefin process
10/28/2004US20040215040 crystallization in solvent selected from hydrocarbons, fatty acid esters, ethers and nitrites; for use in foods, nutritional supplements, nutrients, drinks, feeds, animal drugs, cosmetics, medicines, remedies, and preventive drugs; oxidation resistance
10/28/2004US20040214301 Method of producing reduced coenzyme q10crystals with excellent handling properties
10/28/2004US20040211729 Processes for recovering oligomers of glycols and polymerization catalysts from waste streams
10/28/2004US20040211658 Purification of solvents used for the purification of alkylene oxide
10/27/2004EP1471045A1 Process for producing fluorene derivative
10/27/2004EP1470105A1 Liquid crystal compounds
10/27/2004EP1470094A1 Method for producing toluol derivatives
10/27/2004EP1351910B1 Process for alkoxylation in the presence of rare earth triflimides
10/27/2004EP1122228B1 Gas-phase dehydration reaction process
10/27/2004CN1541197A Method for telomerizing non-cyclic olefins
10/27/2004CN1539805A Method for synthesizing pterostilbene
10/27/2004CN1172893C Integrated technology process for preparing dimethyl ether by synthetic gas
10/27/2004CN1172892C Stabilised compositions of 0-and N-vinyl compounds and the use of ammonium salts as stabilisers
10/27/2004CN1172889C Process for continuously producing dialkyl carbonate and diol
10/26/2004US6809218 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide
10/21/2004WO2004089537A2 An olefin epoxidation process and a catalyst for use in the process
10/21/2004US20040210093 catalytic reaction of mercaptans and thiophenes with hydrogen in a distillation column reactor to produce hydrogen sulfide
10/21/2004US20040210092 Process and apparatus for catalytic distillations
10/21/2004US20040210091 Process and apparatus for catalytic distillations
10/21/2004US20040210090 concurrently feeding two reactants into a distillation column reactor and contacting a second mixture with a non catalytic distillation structure in a parallel and separate distillation non reaction zone
10/21/2004US20040210076 Carene epoxide intermediate that has been used as a precursor to tetrahydrocannabinoids
10/21/2004US20040209931 Process for preparing the enantiomeric forms of cis-configured 1,3-cyclohexanediol derivatives
10/20/2004EP1268381A4 Production of fluormethyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether
10/20/2004CN1537839A Continuous reaction rectifying synthesizing methylene diethyl ether technology
10/19/2004US6806392 Process and manufacturing equipment for preparing acetals and ketals
10/19/2004US6806296 Process of producing liquid hydrocarbon oil or dimethyl ether from lower hydrocarbon gas containing carbon dioxide
10/14/2004WO2004087061A2 Tubulin binding agents and corresponding prodrug constructs
10/14/2004US20040204614 Process and apparatus for catalytic distillations
10/13/2004EP1370600B1 Method for processing polyether alcohols
10/13/2004CN1537087A Method for producing monocarbonyl compounds or biscarbonyl compound or hydroxyl compounds
10/13/2004CN1536990A Pharmaceutical composition comprising (-)-secoisolariciresinol
10/13/2004CN1535944A Chemical method for sythesizing dipheny ether compound
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