Patents
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Patents for C07C 17 - Preparation of halogenated hydrocarbons (19,929)
09/1991
09/10/1991CA1288777C N-fluoropyridinium salt and process for preparing same
09/06/1991CA2037517A1 Method of making benzotrifluoride compound
09/05/1991WO1991013047A1 PREPARATION OF 4-BROMO-o-XYLENE
09/05/1991WO1991011257A3 Chemical compound containing alkaline or alkaline earth metals, catalyst containing same, and a transforming and particularly solvolyzing method using said catalyst
09/04/1991EP0444277A2 Process for the isolation of tetrachlorobutane and for the preparation of phenolic resins from mixtures of chlorinated hydrocarbons
09/03/1991WO1991013048A1 Halogen exchange fluorination
09/03/1991US5045634 Molten alkali metal fluoride, refrigerants
09/03/1991CA2077455A1 Halogen exchange fluorination
09/03/1991CA1288442C Process for removing butadiene from vinyle chloride in a quench tower
08/1991
08/29/1991DE4005944A1 1,1,1-Tri:fluoro-2,2-di:chloro-ethane prepn. - by liq.-phase hydrofluorination, esp. of per-chloro-ethylene, in presence of antimony penta:halide-hydrogen fluoride addn. prod.
08/28/1991EP0443071A1 Process and catalyst for hydrochlorination of hydrocarbons
08/28/1991CN1054068A Process for lithiation of 1,3-bis (trifluoromethyl) benzene
08/28/1991CN1054059A Halogen exchange fluorination
08/28/1991CN1013670B Synthesis for perfluoroalkyl bromide
08/28/1991CN1013669B Synthesis of 1-chloro-1, 1-difluoroethane
08/28/1991CN1013668B Improved catalyst and process for the fluid-bed oxychlorination of ethylene to edc
08/28/1991CN1013667B Method of manufacturing pentabronrotoluene
08/27/1991US5043493 Isomerization using zeolite catalyst
08/27/1991US5043492 Method for producing hexabromocyclododecane
08/27/1991US5043491 Chlorofluorination, hydrodehalogenation with metal containing catalyst
08/27/1991CA1288107C Leukotriene antagonists
08/22/1991WO1991012225A1 Halogen exchange fluorination
08/22/1991WO1991012223A1 Process for dehydrohalogenating aromatic halides
08/21/1991EP0442400A1 Process for preparing substantially fluorinated aliphatic hydrocarbons containing 1 or 2 bromo- or chloroatoms in the molecule
08/21/1991EP0442340A2 Process for the preparation of an organolithium compound starting from 1,3-bis(trifluoromethyl)-benzene
08/21/1991EP0442236A1 Process for dehydrohalogenating aromatic halides
08/21/1991EP0442115A1 Process for nucleus-chlorination of aromatic hydrocarbons
08/21/1991EP0442087A1 Process for preparing saturated fluorinated hydrocarbons without chlorine
08/21/1991EP0442075A1 Process for preparing 1,1,1,3,3,3,-hexafluoropropane and 2-chloro-1,1,1,3,3,3,-hexafluoropropane
08/21/1991EP0441932A1 Fluorobenzole derivatives and mesomorphous medium.
08/21/1991EP0441807A1 Liquid phase fluorination.
08/21/1991EP0252964B1 Catalytic method for producing fluoroaromatic compounds using substituted pyridinium salts
08/20/1991US5041687 Bromination process
08/20/1991US5041639 Polysubstituted derivatives of naphtalene, their process of preparation and their application in the cosmetic and pharmaceutical fields
08/20/1991US5041406 Includes group 1a ion and zinc ion
08/19/1991CA2010314A1 Process and catalyst for hydrochlorination of hydrocarbons
08/14/1991EP0441190A1 Method of elevating the melting point of a hexabromocyclododecane product
08/13/1991US5039807 Phenyl pyrid(-one or-thione) compounds which are intermediates
08/13/1991US5039729 Consisting of hexabromodiphenyl ethane, heptabromodiphenyl ethane and octabromodiphenyl ethane; flame retarders
08/13/1991US5039676 Tri- and tetra-substituted-oxetanes and tetrahydrofurans and intermediates thereof
08/08/1991WO1991011257A2 Chemical compound containing alkaline or alkaline earth metals, catalyst containing same, and a transforming and particularly solvolyzing method using said catalyst
08/08/1991WO1991005750A3 Process for producing fluorinated organic compounds
08/07/1991EP0440555A1 Chemical compound containing alkali or earthalkyli, catalyst containing the same, and transformation process, in particular solvolysis using this catalyst
08/07/1991EP0440134A1 Mesomorphic compound, liquid crystal composition containing same, liquid crystal device using same and display apparatus
08/06/1991US5037918 Heating a monomer having two dimerizable perfluorovinyl groups and crosslinking
08/06/1991US5037917 Polymerizing Monomers Containing At Least Two Perfluorovinyl Groups, Then Heating To Form Perfluorocyclobutane Rings
08/03/1991CA2035573A1 Chemical compound containing alkali of alkali-earth metals, catalyst containing same, and transformation process, such as solvolysis, using same
07/1991
07/31/1991EP0439338A1 A catalyst for halogen exchange in halohydrocarbons and for acid/base reactions
07/31/1991EP0438715A2 1,1-Bicyclo-substituted fluorinated cyclopentanes and method for their production
07/31/1991CN1053422A Extraction method of chloralkane from by-product chlorine oil
07/30/1991US5036036 Chromium oxide catalyst composition
07/26/1991CA2034848A1 Catalyst for halogen exchange in halohydrocarbons and for acid/base reactions
07/24/1991EP0437689A1 A method for fluorodecarboxylation
07/24/1991CN1053227A Process for preparing pentafluorodichloropropanes
07/23/1991CA1286694C Process for the preparation of (2,2)-paracyclophane and derivatives thereof
07/17/1991EP0436989A1 Process for rearranging allylic geminal dihalogen compounds
07/17/1991EP0436957A1 Process for the preparation of dichloro-(2,2)-paracyclophane
07/17/1991EP0436903A1 Process for preparing pentafluorodichloropropanes
07/17/1991CN1053081A Method for synthesizing paraffin chloride
07/16/1991US5032648 1,2-epoxy-4,4,4-trifluoro-2-methylbutane
07/16/1991US5032592 Alkene, alkyne or cycloalkylene derivatives
07/16/1991US5032371 Dehydration
07/16/1991US5032313 Trifluorobenzene derivative and liquid crystal composition containing the same
07/11/1991WO1991009827A1 Method for producing chloroform
07/11/1991WO1991006521A3 Chlorofluorohydrocarbon purification process
07/09/1991US5030778 Catalytic bromination of diphenylalkane
07/09/1991US5030777 Synthesis of 3,5-dichloroalkylbenzene and recovery of 1,3-dichlorobenzene
07/09/1991US5030372 Catalytic equilibration to improve the relative yield of selected halocarbons
07/09/1991CA2033782A1 Process for preparing pentafluorodichloropropanes
07/03/1991EP0435705A1 Process for the selective hydrogenolysis of perhalogeno-ethanes
07/03/1991EP0435210A2 Method for the preparation of methyl chloride
07/03/1991EP0416016A4 Gas-phase fluorination process
07/02/1991US5028254 Azole derivatives and agricultural and horticultural chemical composition containing the same
07/02/1991CA1285580C Process for the co-production of aromatic carboxylates and alkyl iodides
06/1991
06/27/1991WO1991009000A1 Method for the production of bromodifluoromethane
06/26/1991EP0434409A1 Multistep synthesis of hexafluoropropylene
06/26/1991EP0434408A1 Multistep synthesis of hexafluoropropylene
06/26/1991EP0434407A1 Multistep synthesis of hexafluoropropylene
06/26/1991EP0433988A2 Process for continuous telomerisation
06/26/1991CN1052477A Process for liquid phase chlorination of 1, 3-butadiene
06/25/1991US5026932 Preparation of 4-bromo-o-xylene in liquid sulfur dioxide
06/25/1991US5026931 Process for preparing a product stream rich in naphthalene and 2-monoiodonaphthalene
06/25/1991US5026930 Gas-phase fluorination process
06/25/1991US5026929 Contacting a perfluorocylcoalkane with complex of Group 1A-2A metal and electron acceptor under reducing conditions
06/25/1991US5026928 Perfluoroalkenes and fluorination products thereof
06/25/1991US5026894 Spirobifluorene compounds
06/19/1991EP0433130A2 Process for the elimination of vinylidene chloride from 1,1-dichloro-1-fluoroethane
06/19/1991EP0433129A2 Process for the purification of 1,1-dichloro-1-fluoroethane
06/19/1991EP0432636A1 Process for preparing trichloroethylene
06/19/1991EP0432323A1 Simultaneous Hydrodehalogenation of two streams containing halogenated organic compounds
06/19/1991EP0408759A4 Method of obtaining bromated aromatic and heterocyclic combinations containing acceptor groups
06/18/1991US5025110 Saturated aliphatic alcohols mixed with halogenated hydrocarbons as solvent; reuse
06/18/1991US5025107 Process for coproduction of arylene diamine dihalides and alkyl halides
06/16/1991CA2031983A1 Purification of 1,1-dichloro-1-fluoroethane
06/16/1991CA2031887A1 Method for the production of bromodifluoromethane
06/16/1991CA2031689A1 Selective hydrogenolysis of perhalogenated ethane derivatives
06/15/1991CA2031982A1 Process for removing vinylidene chloride from 1,1-dichloro-1-fluoroethane
06/15/1991CA2031955A1 Process for removing dichloroacetylene from 1,1-dichloro-1-fluoroethane and/or vinylidene chloride
06/13/1991WO1991008183A1 Method for producing dichloropentafluoropropanes
06/13/1991WO1991008182A1 Improvements in or relating to the reduction of halogenated organic compounds
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