Patents
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Patents for C07C 17 - Preparation of halogenated hydrocarbons (19,929)
10/1990
10/30/1990US4967024 Catalyzed hydrofluorination process
10/30/1990US4967023 Process for preparing 1,1,1-trifluoro-2,2-dichloroethane by hydrofluorination in the presence of catalysts
10/30/1990US4966988 Chlorination followed by fluorination of m-xylene to form 3-trifluoromethyl-benzyl chloride; cyanation
10/30/1990US4966987 Chemical intermediate for fluorinated aromatic compound
10/24/1990EP0393088A1 Process for the co-production of aromatic carboxylates and alkyl iodides.
10/24/1990CA2015154A1 Liquid feed injection in a chloromethanes process
10/23/1990CA1275544C Omega-perfluoroalkyl-alpha-olefin polymers
10/18/1990WO1990012072A1 Styrene polymerization inhibitor
10/18/1990WO1990011987A1 Preparation of 2-halofluorobenzene
10/17/1990EP0392270A1 Process for the recovery of C3-C4-monoalkylchlorides
10/17/1990CN1046163A Interphenylene 7-oxabicycloheptyl substituted heterocyclic amide prostaglandin analogs useful in treatment of thrombotic and vasospastic disease
10/17/1990CN1010009B Process for producing ethylene dischoride
10/17/1990CA2014509A1 Compounds
10/16/1990US4963578 Organic compounds and their pharmaceutical use
10/10/1990EP0391696A2 Process for preparing aromatic compounds having chlorinated side chains and method for stabilizing monochloro-side chain aromatic compounds
10/10/1990EP0391652A1 Interphenylène 7-oxabicycloheptyl substituted heterocyclic amide prostaglandin analogs useful in the treatment of thrombotic and vasopastic disease
10/10/1990EP0391103A1 Process for producing 1,1-dichloro-1-fluoroethane and/or 1-chloro-1,1-difluoroethane free of vinylidene chloride
10/10/1990EP0391102A1 Gas phase process for the production of 1,1-dichloro-1-fluoroethane and/or 1-chloro-1,1-difluoroethane from vinylidene chloride
10/10/1990EP0390808A1 Process for the co-production of aromatic carboxylate and alkyl iodides.
10/10/1990CN1045929A Tetrafluoroethylene prepn. method by catalytic craking monochloro difluoro methane
10/09/1990US4962247 Process for the production of halogenated hydrocarbons
10/09/1990US4962246 Process for the preparation of benzotrifluorides which are substituted by fluorine and optionally in addition by chlorine, and new benzotrifluorides
10/09/1990US4962245 Distilling or stripping to remove hydrogen halides and contacting with zeolites for selective adsorption
10/09/1990US4962244 Process for producing 1,1-dichloro-1-fluoroethane and/or 1-chloro-1,1-difluoroethane free of vinylidene chloride
10/09/1990CA1275117A1 Halogenoolefines as arthropodicides and nematocides
10/09/1990CA1275116A1 Method for adsorptive separation of dichlorotoluenes
10/09/1990CA1275115A1 Process for producing a halogenated benzene derivative using an improved zeolite catalyst
10/05/1990CA2013675A1 Gas phase process for the production of 1,1-dichloro-1-fluoroethane and/or 1-chloro-1,1-difluoroethane from vinylidene chloride
10/04/1990WO1990011131A1 Process and catalyst for the dehydrohalogenation of halogenated hydrocarbons or alkylene halohydrins
10/03/1990EP0389650A1 Process and catalyst for the dehydrohalogenation of halogenated hydrocarbons or alkylene halohydrins
10/03/1990CN1045769A Substituted biphenyls
10/03/1990CA2012371A1 Process for producing 1,1-dichloro-1-fluoroethane and/or 1-chloro-1,1-difluoroethane free of vinylidene chloride
10/02/1990US4960963 Process for producing vinylchloride monomer by pyrolysis of 1,2-dichloroethane
10/02/1990US4960962 Selective dehydrobromination
10/02/1990US4960798 Methods for the treatment of angina
09/1990
09/26/1990EP0389334A1 Process for the purification of 1,1,1,2-tetrafluorethane
09/26/1990EP0388870A1 Process for preparing aliphatic substituted fluorobenzenes
09/26/1990EP0388732A2 Pentasubstituted phenyls
09/26/1990EP0388427A1 Continuous decomposition of diazonium fluorides.
09/23/1990CA2004709A1 Process for purifying 1,1,1,2-tetrafluoroethane
09/22/1990CA2012572A1 Substituted biphenyls
09/22/1990CA2011002A1 Preparation of aliphatically substituted fluorobenzenes
09/20/1990WO1990010612A1 Process for purifying 1,1,1,2-tetrafluoroethane
09/20/1990WO1990008754A3 Process for producing a 2,2-difluoropropane
09/20/1990DE3925437C1 Bi:aryl cpds. prepn. - by coupling two halo-aromatic cpds.
09/18/1990CA1274253A1 Method for selective separation of 2,6- dichlorotoluene
09/12/1990EP0387080A1 Alkylation of organic aromatic compounds
09/12/1990EP0387032A1 Trifluorobenzene derivatives and liquid crystal compositions containing the same
09/12/1990EP0386120A1 Process for the co-production of aromatic carboxylate and alkyl iodides.
09/11/1990US4956507 Grignard reagents from p-halofluorobenzene and magnesium coupling to form p,p*-difluorobiphenyl
09/11/1990US4956017 Non-volatile 1,1,1-trichloroethane inhibitors
09/11/1990CA1273961A1 Process for producing hydrocarbon fluoride
09/11/1990CA1273942A1 Derivatives of imidazole, their preparation and utilisation, and pharmaceutical compositions containing these derivatives
09/11/1990CA1273937A1 Phenyl pyridones and thiopyridones
09/10/1990CA2011858A1 Alkylation of organic aromatic compounds
09/08/1990CA2008544A1 Process for purifying 1,1,1,2-tetrafluoroethane
09/07/1990WO1990009957A1 Process for the continuous recovery of hydrogen fluoride gas
09/05/1990EP0385874A1 Functionalisation at position (n+1) of aryl derivatives disubstituted at position n and (n+2)
09/05/1990CN1045091A Manufacture of 1,1,1, 2-tetrafluoroethane
09/05/1990CN1045090A Process for preparing chloroform
09/04/1990US4954666 Process for preparing fluorinated C4 to C6 hydrocarbons and novel cyclic fluorinated hydrocarbons and their use as propellant gas and working fluid for heat pump systems
09/04/1990US4954648 Method for the bromination of aromatic compound
09/04/1990US4954287 Stabilized
09/04/1990CA1273645A1 Production of 1,1,1,3-tetrachloropropane
09/04/1990CA1273644A1 Process for preparation of halogenated benzene derivatives
09/03/1990CA2011348A1 Process for functionalizing n and (n+2) disubstituted arylic derivatives in the (n+ 1) position
08/1990
08/29/1990CN1044949A Process for drying hydrocarbons
08/29/1990CN1009364B Technology for preparing chlorine solvent
08/28/1990US4952722 Cyclohex-2-en-1-one derivatives; herbicides
08/28/1990US4952719 Reacting alkali metal fluoride with 4-chloro-3,5-dinitrobenzonitrile; chlorodenitrating
08/22/1990EP0383675A1 Process for drying hydrocarbons and its use in the preparation of chloromethanes
08/22/1990CN1044808A Method for bromination of aromatic and heterocyclic compounds containing acceptor groups
08/21/1990US4950817 Process for the preparation of 4,4'-dihalobiphenyls
08/21/1990US4950816 Passing through activated carbon to remove unsaturated impurities
08/21/1990US4950815 Using fluorination catalyst
08/21/1990US4950814 Liquid fluorocarbon and a method for producing the same
08/21/1990US4950813 Preparation of substituted benzotrichlorides
08/21/1990US4950364 Adding liquid containing 3 moles of hydrogen fluoride per mole 1,1-dichloro-1-fluoroethane
08/16/1990EP0381942A1 Process and device for the recovery of perchloroethylene absorbed by an adsorbent
08/16/1990EP0381728A1 Difluoromethyl compounds.
08/16/1990EP0381702A1 Novel method for oxyiodination product partial purification.
08/15/1990CN1044648A Improved hydrogenolysis/dehydrohalogenation process
08/15/1990CN1044647A Purification of saturated halocarbons
08/14/1990USRE33300 Leukotriene antagonists; antiallergens
08/14/1990US4948886 Alkaline hydrolysis of benzothiazoles to give o-amino-thiophenols, isolation by acidification, reacted with acrylic acids
08/14/1990US4948479 Treating with chlorine, irradiating with uv and separating
08/09/1990WO1990008755A1 Manufacture of 1,1,1,2-tetrafluoroethane
08/09/1990WO1990008751A1 Carbon molecular sieves for purification of chlorofluorocarbons
08/09/1990WO1990008750A1 Purification of saturated halocarbons
08/09/1990WO1990008749A1 Production of allyl chloride
08/09/1990WO1990008748A1 Improved hydrogenolysis/dehydrohalogenation process
08/09/1990DE4003533A1 Harmful materials desorbed by very low pressure - are frozen in separate cooler chamber for disposal
08/09/1990DE3051193C2 Purification of crude deca:bromo-di:phenyl ether
08/07/1990WO1990008754A2 Process for producing a 2,2-difluoropropane
08/07/1990US4947006 Process for preparing fluorinated conjugated olefinic products and new products thus obtained
08/07/1990CA1272490A1 Quantification of the quality of fluidization using a thermocouple
08/07/1990CA1272448A1 Pharmaceutical composition containing at least one benzonorbornen derivative as active principle
08/03/1990WO1990008753A1 Process for producing a hydrogen-containing 2,2-difluoropropane
08/03/1990WO1990008752A1 Process for producing a chlorine-containing 2,2-difluoropropane
08/03/1990CA2026566A1 Process for producing a chlorine-containing 2-2-difluoropropane
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