Patents
Patents for C07C 17 - Preparation of halogenated hydrocarbons (19,929)
04/2000
04/06/2000WO2000018706A1 Process for the preparation of cyclopropylacetylene
04/06/2000DE19945890A1 New cyclohexane derivatives for use in liquid crystal media have at least one axial fluoro-methyl or -methoxy, optionally substituted sulfur pentafluoride or sulfonyl fluoride group at position one and/or four
04/05/2000EP0990148A1 Electrokinetic pumping
04/05/2000EP0799172B1 Catalytic hydrogenolysis
04/05/2000EP0788469B1 Production of hydrofluoroalkanes
04/05/2000EP0787117B1 Single stage fixed bed oxychlorination of ethylene
04/05/2000EP0733613B1 Process for producing difluoromethane and 1,1,1,2-tetrafluoroethane
04/05/2000CN2372318Y Methane chlorination chromatography tower equipment
04/05/2000CN1051071C Method for converting chlorinated alkane into less chlorinated alkene
04/04/2000US6046358 Purifying an impure tetra(dihydrocarbylamino)phophonium halide with a liquid cyclic ether to separate solid impurities; mixing with an anhydrous nonsolvent to precipitate the catalyst used to fluorinate halobenzenes
04/04/2000CA2196194C Purification methods of pentafluoroethane
03/2000
03/30/2000WO2000017187A1 Processes for the preparation of isochromanones and intermediates for the preparation thereof
03/30/2000WO2000017137A1 Process for producing 1,1,1,3,3-pentachloropropane
03/30/2000WO2000017136A1 Process for producing 1,1,1,3,3-pentafluoro-propane and/or 1-chloro-3,3,3-trifluoropropene
03/30/2000WO2000017135A1 Halocarbon compound production
03/30/2000WO2000017132A1 Method for producing olefins
03/30/2000WO2000017101A1 Chemical derivatization of single-wall carbon nanotubes to facilitate solvation thereof; and use of derivatized nanotubes
03/30/2000CA2345017A1 Method for producing olefins
03/29/2000EP0988266A1 Continuous method for reducing carbonyl compounds
03/29/2000CN1050776C Fluorination catalyst and process
03/28/2000US6043397 Reacting an aromatic compound having carbonyl halide, aldehyde or ketone groups, and optionally halogen groups with a di(alkyl/phenyl)aminosulfur trifluoride; reaction can proceed in standard vessel at ambient temperature, pressure
03/23/2000WO2000015588A1 Fluoroalkene-nucleophile adducts for analysis and removal of fluoroalkenes
03/23/2000DE19843012A1 (Hetero)aryl-substituted olefin preparation for use e.g. as polymer or drug intermediate, by Heck reaction using inexpensive catalyst system of divalent palladium compound and nitrogen-containing additive
03/22/2000EP0987238A1 Liquid-crystalline compounds having bicyclo 1.1.1]pentane structure, liquid-crystal composition, and liquid-crystal display element
03/21/2000US6040488 A free radical stabilizer having at least one 2,2,6,6-tetra(lower alkyl)-1-piperidinyloxy-yl free radical group; storage stability; efficiency
03/21/2000US6040487 Process for the manufacture of halocarbons
03/21/2000US6040486 Process for the manufacture of 2-chloro-1,1,1-trifluoroethane
03/21/2000US6040485 A 1-branched alkyl-3-perfluoroalkylprop-1-ene, a solution of which in a silicone or fluorosilicone oil replaces the vitrous or aqueous humor in the eye to promote re-adhesion of the retina; stability; biocompatibility; solubilizer of oxygen
03/21/2000US6039845 Purification of pentafluoroethane containing chloropentafluoroethane by removing chloropentafluoroethane using perfluoroalkyl halide, in which halide can be chlorie, bromide or iodide as extractant for extractive distillation
03/16/2000WO2000014177A1 Vinyl monomer polymerization inhibition using hindered hydroxylamines
03/16/2000WO2000014040A1 Purification of 1,1,1,3,3-pentafluorobutane
03/16/2000WO2000013782A1 Fluid distributor-mixer-extractor and related method
03/16/2000CA2343022A1 Vinyl monomer polymerization inhibition using hindered hydroxylamines
03/15/2000EP0985650A1 Process for the preparation of pentafluoroethane
03/15/2000EP0985649A2 Method for producing an aromatic compound having an alkyl group with at least three carbon atoms
03/15/2000EP0984911A1 Method for preparing halogenated hydrocarbons
03/15/2000EP0984910A1 Production of 1-bromopropane
03/15/2000EP0782557B1 Purification process for hexafluoroethane products
03/14/2000US6037509 Process for producing 1-bromo-4-phenylbutane
03/14/2000US6037508 By reacting trichloroethylene with hydrofluoric acid and 1,1,1-trifluoro-2-chloroethane (133a) in given molar ratios using a chromiuim oxide (cr2o3) on aluminum fluoride (alf3) catalyst; recycling unreacted trichloroethylene and 133a
03/09/2000WO2000012453A1 Process for the production of cyclopropylmethyl halides
03/09/2000WO2000012452A1 Process for the production of cyclobutyl halides
03/09/2000WO2000012449A1 Copper-catalyzed enantioselective allylic substitution reactions
03/09/2000DE19940104A1 Purification of 1,1,1,3,3-penta:fluoro-butane, used as a blowing agent for plastic foam, involves treatment with a solid inorganic sorption agent or diatomatic molecules capable of addition to multiple bonds
03/09/2000CA2282060A1 Method for producing aromatic compounds having alkyl group with at least three carbon atoms
03/08/2000EP0983610A1 Method and apparatus for manufacturing a micromechanical device
03/08/2000CN1246853A Process for preparation of epoxy compounds
03/08/2000CN1246469A Naphthacridine derivative and liquid crystal composite containing it
03/08/2000CN1246468A Improved process for preparing ketone musk
03/08/2000CN1050115C Process for simultaneously producing trichloroethylene and perchloroethylene by chlorinating 1,2-dichloroethane in a facility capable of producing also carbon tetrachloride
03/07/2000US6034290 Porous microcomposite of metal cation exchanged perfluorinated ion-exchange polymer and network of metal oxide, silica, or metal oxide and silica
03/07/2000US6034289 Treatment of chromium oxide and catalytic manufacture of vinyl fluoride
03/07/2000US6034288 Process for vaporization of halocarbons
03/07/2000US6034268 Organoleptic
03/02/2000WO2000010952A1 Decahydronaphthalene derivative
03/01/2000EP0982388A1 Liquid crystal compound having negative dielectric anisotropy, liquid crystal composition containing said liquid compound and liquid crystal display device using said composition
03/01/2000EP0982281A1 Fluorinated, saturated hydrocarbons
03/01/2000EP0982069A2 Method of evacuating fine dust particles from a fluidized bed reactor, specifically for oxychlorination of ethylene
02/2000
02/29/2000US6031141 Catalytic dehydrofluorination and alkenylation in presence of cubic chromium trifluoride
02/29/2000US6031126 Rearranging a hydrazobenzene compound to form a diaminodiphenyl compound, diazotising, catalytic reacting with a styryl compound to form a distyryl-biphenyl fluorescent whitening agent
02/29/2000US6030591 Process for removing and recovering halocarbons from effluent process streams
02/29/2000US6030545 Tercyclohexane, liquid-crystalline compound and liquid crystal composition comprising same
02/24/2000WO2000009475A1 Amine derivatives
02/24/2000WO2000009474A1 Process for preparing 3,5-difluoroaniline
02/24/2000WO2000009261A1 Dispersion and stabilization of reactive atoms on the surface of metal oxides
02/24/2000CA2339634A1 Amine derivatives
02/23/2000EP0980347A1 Separation of co 2? from unsaturated fluorinated compounds by semipermeable membrane
02/23/2000EP0980346A1 Co 2? removal from fluorocarbons by semipermeable membrane
02/23/2000EP0980345A1 Method for preparing 1,1,1,3,3-pentachlorobutane
02/23/2000CN1049647C Process for production of fluorinated hydrocarbons
02/22/2000US6028232 Para-chlorination of aromatic compound
02/22/2000US6028103 Triaryl methane compounds and analogues thereof useful for the treatment or prevention of sickle cell disease or diseases characterized by abnormal cell proliferation
02/22/2000US6028026 Efficiency
02/22/2000CA2101388C Improved catalyst and process for oxychlorination of ethylene to edc
02/17/2000WO2000007968A1 Coupling reactions of 2-substituted, 7-haloindenes with aryl substituents to produce metallocene catalyst ligands
02/17/2000DE19836470A1 Verfahren zur Herstellung von 4-Chlorbiphenylen A process for the preparation of 4-chlorobiphenyls
02/17/2000CA2305363A1 Coupling reactions of 2-substituted, 7-haloindenes with aryl substituents to produce metallocene catalyst ligands
02/16/2000EP0979809A1 Process for the preparation of 4-chlorobiphenylenes
02/16/2000EP0979210A1 Preparation of lucas reagent of enhanced utility and its use in synthesis of cycloaliphatic chlorides
02/16/2000CN1244855A Polymerizable biaryls, method for the production and use thereof
02/16/2000CN1244854A Method for preparing styrenes
02/16/2000CN1049420C Process for preparing 2,2-diphenylhexalfluoropropanes
02/16/2000CN1049419C Process for producing fluorinated hydrocarbon
02/15/2000US6025532 Process for the manufacture of hydrofluoroalkanes
02/15/2000US6025521 Telomerization process for telomerizing ethylenic monomer compounds
02/15/2000US6024894 Synergistic composition of quinone methide derivative and hydroxylamine compound
02/09/2000EP0977739A1 Synthesis of intermediates useful in preparing tricyclic compounds
02/09/2000EP0977729A1 3-cyano-2,4,5-trifluoro-benzoyl fluoride and intermediate products for the production thereof
02/09/2000EP0977718A1 Process for manufacturing allylhalide and equipment to be used therefor
02/09/2000EP0788494B1 Process for the preparation of furosemide
02/09/2000EP0767158B1 Process for producing difluoromethane
02/09/2000CN1244139A Amidophosphonium-salt-containing catalyst for halogen-fluorine exchange reactions
02/09/2000CN1243808A Flocculant of halogenated bone glue and its preparing process
02/08/2000USRE36563 Transition metal compound, polymerization catalyst using same and process for producing styrenic polymer using said polymerization catalyst
02/08/2000US6023004 Liquid phase catalytic fluorination of hydrochlorocarbon and hydrochlorofluorocarbon
02/03/2000WO2000005749A2 Method and apparatus for anisotropic etching
02/03/2000DE19834083A1 Verfahren zur Energieschonung, insbesondere bei der Oxychlorierung von Ethylen A method of energy conservation, particularly in the case of the oxychlorination of ethylene
02/03/2000DE19833668A1 High-purity bis-para-substituted derivatives of 1,2-diphenyl-propane obtained by electrophilic substitution and selective separation, useful as intermediates, e.g. in production of polyester or polyurethane
02/02/2000EP0976704A1 Energy-saving process for oxychlorination of ethylene
02/02/2000EP0976700A1 Halogenating agent and process for halogenating hydroxyl group