Patents
Patents for C07C 17 - Preparation of halogenated hydrocarbons (19,929)
06/2000
06/02/2000WO2000031008A1 Synthesis of tetraalkylcyclopentadienes
06/02/2000WO2000031003A1 Process for converting an alcohol to the corresponding fluoride
06/02/2000CA2318606A1 Synthesis of tetraalkylcyclopentadienes
05/2000
05/31/2000EP1003699A1 Purification of difluoromethane by extractive distillation
05/31/2000EP1003698A1 Preparation of gem-dihaloalkanes
05/31/2000DE19955932A1 New cyclobutane derivatives, useful as components of liquid crystal media for liquid crystal displays, reflective or trans-reflective displays and electro-optical displays
05/31/2000CN2380567Y 反应器 Reactor
05/25/2000WO2000029361A1 Azeotropic composition comprising 1,1,1,3,3-pentafluoropropane and 1,1,1-trifluoro-3-chloro-2-propene, method of separation and purification of the same, and process for producing 1,1,1,3,3-pentafluoropropane and 1,1,1-trifluoro-3-chloro-2-propene
05/25/2000WO2000029360A1 Reducing meta content of isomeric mixtures of halo substituted toluenes
05/25/2000WO2000029359A1 Catalytic dehydrodechlorination of ethylene dichloride
05/25/2000DE19946228A1 New benzene derivatives
05/25/2000DE19849709A1 Wirbelschicht-Reaktor zur Oxichlorierung von Ethylen, Sauerstoff und HCI Fluidized-bed reactor for the oxychlorination of ethylene, oxygen and HCI
05/25/2000DE19844865C1 Verfahren zur Iodierung von Ausgangsverbindungen, die sekundäre CH-Bindungen enthalten, oder von polycyklischen Ausgangsverbindungen, die tertiäre CH-Bindungen enthalten A process for the iodination of starting compounds which contain secondary CH bonds, or polycyclic starting compounds, the tertiary CH bonds
05/25/2000CA2351000A1 Reducing meta content of isomeric mixtures of halo substituted toluenes
05/25/2000CA2350582A1 Catalytic dehydrodechlorination of ethylene dichloride
05/24/2000EP1002781A1 Fluorinated propanes and pentanes
05/24/2000EP1002780A1 Adsorbent for aromatic isomers and separation thereof
05/24/2000EP1002576A1 Copper-based catalyst for the oxychlorination of the ethylene to 1,2-dichloroethane
05/24/2000EP1001923A1 Method for preparing halogenated hydrocarbons
05/24/2000EP0773207B1 Method of purifying pentafluoroethane
05/24/2000CN1254329A CO2 removal from fluorocarbons by semipermeable membrane
05/23/2000US6066769 Pre-fluorinating a chlorinated propane compound of given formula in a first step and completing the fluorination in a second, vapor phase step
05/23/2000US6066768 Composition of at least one of a specific group of perchlorofluorobutanes, perchlorofluorohexanes, and chlorofluorinated butane and hexane compounds
05/23/2000US6066766 By reacting a 1-chloro-4-halo-benzene with an aryl grignard compound in the presence of a dicyclopentadienylphosphinopalladium catalyst of given formula
05/20/2000CA2290334A1 Adsorbent for aromatic isomers and production of aromatic isomers
05/18/2000WO2000027798A1 Production of 2-amino-2-[2-(4-c2-20-alkyl-phenyl)ethyl]propane-1,3-diols
05/18/2000WO2000027517A1 Device for providing a loose flange of a manhole opening or the like, especially for fluidized reactors
05/17/2000EP1000068A1 Perfluoronaphthyl substituted boron containing catalyst activator
05/17/2000EP1000002A1 Vapour phase preparation of 1,1,1,2,3,3,3-heptafluoropropane
05/17/2000EP1000001A1 A process for the preparation of cyclopropylacetylene
05/17/2000EP0999999A1 Method for preparing substituted benzyl bromides
05/17/2000EP0973712A4 PROCESS FOR THE MANUFACTURE OF TETRABROMOBISPHENOL-A WITH CO-PRODUCTION OF n-PROPYL BROMIDE
05/17/2000EP0842208B1 2,7-aryl-9-substituted fluorenes and 9-substituted fluorene oligomers and polymers
05/17/2000EP0805137B1 Method of separating pentafluoroethane and process for producing pentafluoroethane by utilizing said method
05/17/2000CN1253540A Separation of CO2 from unsaturated fluorinated compounds by semipermeable membrane
05/16/2000US6063971 Triarylphosphine halogenation catalyst
05/16/2000US6063970 Preparing 1-chloro-1,3,3,3-tetrafluoropropane, 1-chloro-1,3,3-trifluoropropane or 1,1-dichloro-1,3,3,3-tetrafluoropropane by fluorinating a chlorinated fluoroolefinic hydrocarbon
05/16/2000US6063969 Preparation of 142
05/16/2000US6063940 Reacting an allyl halide and magnesium to form a grignard reagent, reacting the formed intermediated with benzyl halide in presence of a nickel catalyst; alkenylation
05/16/2000US6063852 Brominated polyphenylmethanes, process for their preparation and fire retardant compositions containing them
05/16/2000US6063749 Metal stabilizers with dialkyl carbonates for c3 to c5 alkyl bromides
05/11/2000WO2000026164A1 Ethylene chlorination obtained by hydrocarbon cracking
05/11/2000DE19851423A1 Vorrichtung zur Bereitstellung eines Blockflansches einer Mannlochöffnung o. dgl., insbesondere bei Wirbelschichtreaktoren Apparatus for providing a base flange of a manhole o. The like., Especially in fluidized bed reactors
05/10/2000EP0999196A1 Process for the preparation of halogenated hydrocarbons
05/10/2000EP0999195A1 Method for preparing perhalogenated five-membered cyclic compound
05/10/2000EP0998438A1 Continuous method for producing pentafluoroethyl iodide
05/10/2000EP0880490A4 Synthesis of perfluoro aromatic boranes and borates
05/10/2000EP0707624B1 Perfluoro-1h-1h-neopentyl containing contrast agents and method to use same
05/10/2000CN1252789A 3-cyano-2,4,5-trifluoro-benzoyle fluoride and intermediate preparation thereof
05/10/2000CN1252783A Halogenating agent and preocess for halogenating hydroxyl group
05/10/2000CA2288364A1 Catalysts for the oxi-chlorination of ethylene to 1,2-dichloroethane
05/09/2000US6060630 Process for the production of perchloroethylene
05/09/2000US6060629 Adding hydrogen fluoride to the mixture containing 1,1,1,3,3-pentafluoropropane in an amount sufficient to form an azeotrope of pentafluoropropane and hydrogen fluoride, then separating the azeotrope from impurity
05/09/2000US6060628 Manufacturing method for 1,1,1,3,3-pentafluoropropane
05/09/2000US6060605 Process for producing substituted arylpyrazoles
05/09/2000US6059933 Inhibition of 141b decomposition
05/05/2000CA2288248A1 Process for preparing halogenated hydrocarbons
05/04/2000WO2000024696A1 Method of producing hydrofluorocarbons
05/04/2000WO2000010952B1 Decahydronaphthalene derivative
05/03/2000EP0997187A1 Fluidised bed reactor for the oxychlorination of ethylene, oxygen and HCl
05/03/2000EP0996704A1 Stabilized alkyl bromide solvents
05/03/2000EP0971785A4 Recovery of perfluorinated compounds and hydrofluorocarbon gases using molecular sieve membranes
05/03/2000EP0775101B1 Benzene derivatives and liquid crystal medium
05/03/2000CN1252044A Manufacture of allyhalide and equipment thereof
05/03/2000CN1252039A Hydrogen fluoride recovery
05/03/2000CN1051989C Chlorination process
05/02/2000US6057364 Fluoro-substituted adamantane derivatives
05/02/2000US6057006 Comparatively high clearing point and low positive or negative dielectric anisotropy suitable as components of liquid-crystalline media, in particular for tft and stn displays.
05/02/2000US6056895 Fluorocyclohexane derivatives, and liquid-crystalline medium
04/2000
04/26/2000EP0995734A1 Method for production of halogen-containing aromatic compound
04/26/2000EP0995733A1 Improved process for the preparation of TMPI derivatives
04/26/2000EP0995715A1 Hydrocarbon partial oxidation process
04/26/2000CN1251359A Process for preparing 3,4,5-trichloro-benzotrifluoride
04/26/2000CN1051778C Method of producing rigid polyurethane foams
04/20/2000WO2000021912A1 Preparation of cyclopropylethyne and intermediates for preparation of cyclopropylethyne
04/20/2000WO2000021660A1 Hydrofluorination catalyst and method
04/19/2000EP0994090A1 Azeotropic mixture of perfluoroalkyl iodide and hydrogen fluoride, and method for isolating and purifying perfluoroalkyl iodides
04/19/2000EP0994089A1 Fluorinated hydrocarbons, detergents, deterging method, polymer-containing fluids, and method of forming polymer films
04/19/2000EP0993432A1 Process for the preparation of trifluoromethyl acetophenone
04/19/2000EP0993425A1 Process for preparing hydrofluorocarbons
04/19/2000EP0778254B1 Process for producing pentafluoroethane
04/19/2000EP0757667B1 Processes for preparing aromatic, bromine-containing compounds, novel bromine-containing compounds, and their use as intermediate products in the synthesis of active agents
04/19/2000EP0525140B1 Liquid-crystal compounds
04/19/2000CN1250617A Process for preparing additive rich in organic iodine compound from plant
04/18/2000US6051727 Metallocenes containing aryl-substituted indenyl derivatives as ligands, process for their preparation, and their use as catalysts
04/18/2000US6051522 Catalyst which can be used for the preparation of olefins during polymerization
04/18/2000CA2015247C Process for preparing fluoroalkyl vinyl compound
04/13/2000WO2000020364A1 Novel bromine-containing 1,2-bis(phenyl)difluoromethanes and method of imparting flame retardancy to flammable materials
04/13/2000WO2000020363A1 Novel bromine-containing 1,2-bis(phenyl) tetrafluoro ethanes and method of imparting flame retardancy to flammable materials
04/13/2000WO2000020362A1 Method for the preparation of 3-bromo-1,1,1-trifluoropropane
04/12/2000CN1250431A Isomerization of hydrofluorocarbon
04/12/2000CN1250430A Process for the manufacture of halocarbons
04/12/2000CN1051252C Waste chrome-base fluorination catalyst treating process
04/11/2000US6049019 Reacting cyclopropane carboxaldehyde with malonic acid or malonic acid substitute to form 3-cyclopropylacrylic acid;halogenating to form (e,z)-1-halo-2-cyclopropylethylene; reacting with strong base to form cyclopropyl acetylene
04/11/2000US6049016 Reacting pentachloroethylene and hydrogen fluoride in presence of catalyst in liquid phase; removing hydrogen chloride from fifth fraction; reacting fraction in vapor phase; separating second fraction into three fractions; recirculating
04/11/2000US6049014 Process for the manufacture of tetrabromobisphenol-A with co-production of n-propyl bromide
04/11/2000US6048952 Perfluoroalkyl halides and derivatives
04/11/2000US6048814 Process and unit for regeneration of a catalyst for the production of aromatic compounds or for reforming
04/11/2000US6047560 Extraction distilling a mixed fluid comprising pentafluoroethane and 1,1,1-trifluoroethane in the presence of an extracting agent selected from esters and ketones each having standard boiling point of from-10 to 100 degree c.
04/06/2000WO2000018711A1 Method for iodinating parent compounds containing secondary ch-bonds or for iodinating polycyclic parent compounds containing tertiary ch-bonds