Patents
Patents for C07C 17 - Preparation of halogenated hydrocarbons (19,929)
04/1991
04/02/1991US5004849 Manufacture of perchloroethylene and trichloroethylene by catalytic oxychlorination, and improved catalysts therefor
04/02/1991US5004848 Controlling temperature, loading factor and weight ratio of solvent mixture; separating isomers by particle sizes
04/02/1991US5004847 Purification And Agglomeration By Heating
04/02/1991CA1282432C Liquid phase dehydrochlorination of haloalkanes with an organic chlorinatedproduct initiador
04/02/1991CA1282431C Production of crystalline tribromostyrene
03/1991
03/28/1991DE3930993A1 Prepn. of p-halo:benzyl halide(s) - from reaction of benzyl halide with zeolite catalyst, for use as synthetic intermediates
03/27/1991EP0418648A1 4-Hydroxytetrahydropyran-2-ones as well as the corresponding dehydroxy carbon acid derivatives, salts and esters, process for their preparation, pharmaceutical preparations as well as precursors
03/27/1991CN1012170B Recovery of ethylene, chlorine and hcl from vented waste gas from direct chlorination seactor
03/26/1991US5003117 Bromination of Diphenylmethane
03/26/1991US5003116 Haloethylation of aromatic hydrocarbons
03/26/1991US5003074 N-fluorinated sulfonamides
03/21/1991WO1991003450A1 Fluorobenzole derivatives and mesomorphous medium
03/21/1991WO1991003442A2 Process for separating mixtures of partially fluorinated or perfluorinated hydrocarbon compounds
03/20/1991EP0417690A2 Aromatization process
03/20/1991EP0417680A1 Method for the production of 1,1,1,2-tetrafluoroethane
03/20/1991EP0299026B1 Process for the co-production of aromatic carboxylates and alkyl iodides
03/19/1991US5001290 Production of dichlorobenzene with high para to ortho ratios
03/19/1991US5001289 Shaped zeolite catalyst for liquid phase organic reactions
03/19/1991US5001288 Haloethylation of aromatic hydrocarbons
03/19/1991US5001287 Purification of saturated halocarbons
03/19/1991US5001255 Idene analogs of mevalonolactone and derivatives thereof
03/19/1991US5000024 Rolling mill drive with spindles releasably arranged between pinions and work rolls
03/19/1991CA1281745C Recovery of ethylene, chlorine and hc1 from vented waste gas from direct chlorination reactor
03/13/1991EP0416615A1 Process for preparing chlorotrifluoroethylene
03/13/1991EP0416113A1 Process for producing a hydrogen-containing 2,2-difluoropropane.
03/13/1991EP0416016A1 Gas-phase fluorination process.
03/13/1991EP0415963A1 Use of metal chelate complexes in dehalogenation
03/13/1991CN1011968B Process for preparing iodinated aromatic compounds
03/13/1991CN1011967B Process for perfluropropylene
03/12/1991US4999429 Desulfonation of corresponding aryl sulfone compound
03/12/1991CA2023720A1 Aromatization process
03/12/1991CA1281306C Process for the fluorination in liquid phase of unsaturated compounds
03/07/1991WO1991002709A1 Phenylcyclohexanes and liquid crystal medium
03/07/1991WO1991002708A1 Method for isomerizing 1,2-dichloroethene
03/07/1991DE4027840A1 Fluorbenzolderivate und fluessigkristallines medium Fluorobenzene derivatives and fluessigkristallines medium
03/07/1991DE4027143A1 Stabilising blood substitute emulsions contg. per:fluoro-hydrocarbon
03/06/1991EP0415814A1 Liquid phase fluorination catalysts
03/06/1991EP0415250A1 Process for stabilizing chlorinated paraffins
03/06/1991EP0414686A1 Derivatives of trifluoromethyl-1-tetralines, preparation and application thereof for the synthesis of compounds having therapeutic properties.
03/06/1991CN1049650A Process for prepn. of terpenes
03/05/1991US4997991 Bromination of divinylbenzene, dehydrobromination, phase transfer agent
03/05/1991US4997990 Process and composition for stabilization of ar-brominated styrenic monomer
03/05/1991US4997855 Vinyl fluorides and pesticidal uses
02/1991
02/27/1991EP0414370A1 Halogen-exchange process
02/27/1991EP0414106A2 Process for the preparation of terpenes
02/27/1991CN1049492A Process for separating two isomerides and application for purifying 1-phenyl-2-bromo ethane
02/27/1991CN1049491A Simple technology for refining halogenated paraffines
02/27/1991CN1049461A Process for preparing chlorofluorocarbons via in situ generated activated aluminium trihalide catalyst and products resulting therefrom
02/26/1991US4996380 Process for extracting meta-dichlorobenzene from isomer mixtures with mixed alkali metal exchanged X zeolite adsorbents
02/26/1991US4996379 Dechlorination
02/26/1991US4996378 Process for production of 1,1-dichloro-1-fluoroethane and/or 1-chloro-1,1-difluoroethane
02/26/1991US4996377 Preparation of aliphatically substituted fluorobenzenes
02/26/1991US4996371 Method for fluorodecarboxylation
02/26/1991US4996370 Monomers
02/26/1991US4996340 Using organoaluminum compounds to produce stereospecific conjugated olefins
02/26/1991US4996320 Thyroid inhibitors
02/26/1991CA1280769C Production of tetrafluoroethylene and hexafluoropropylene
02/21/1991DE4025550A1 Phenylcyclohexane und fluessigkristallines medium Phenylcyclohexanes and fluessigkristallines medium
02/20/1991EP0413448A1 An Azole-substituted cycloalkanol derivative, a process to produce the same and a use of the derivative as an agricultural and horticultural fungicide
02/19/1991US4994568 6- and 4-substituted-1-azabicyclo(3.2.0)heptan-3, 7-dione-2-carboxylates
02/19/1991US4994489 Ester derivatives of diarylacetylenes, their compositions and their use in acne treatment
02/19/1991CA1280438C Process for the co-production of aromatic carboxylates and alkyl iodides
02/19/1991CA1280437C Process for the co-production of aromatic carboxylates and alkyl iodides
02/13/1991EP0412623A1 Process for separating 2-chloro-m-xylene
02/13/1991CN1049150A Halogen-exchange process
02/12/1991US4992604 Stabilized 1,1,1-trichloroethane compositions
02/12/1991US4992151 Method for the selective alpha halogenation of alkylaromatic compounds
02/12/1991CA1280128C Preparation process of trifluoromethyl iodide
02/07/1991DE3925525A1 Prepn. of alpha, omega-bis-per:fluoro:alkyl alkane cpds. - by reacting 1-iodo-omega, per:fluoro:alkyl alkane or 1-bromo-omega-per:fluoro alkyl alkane with magnesium metal
02/05/1991US4990708 Process for the preparation of dibromomethane
02/05/1991US4990707 Process for the ring chlorination of aromatic hydrocarbons
02/05/1991US4990706 Process for producing para-dichlorobenzene
02/05/1991US4990705 Reacting biphenyl with bromine in solvent comprising organic sulfur compound, amide, or nitrile
02/05/1991US4990704 Haloethylation of aromatic hydrocarbons
02/05/1991US4990702 Reacting halocarbons having a replacable halogen other than fluorine with cesium or rubidium fluoro compounds
02/05/1991US4990701 Contacting a saturated halocarbon with an anhydrous melt containing potassium fluoride and hydrogen fluoride
02/05/1991US4990696 Oxychlorinationof perchloroethylene to form hexachloroethane which is reacted with methane to produce methyl chloride, hydrolysis
01/1991
01/31/1991DE3923674A1 New 1,2-di:aryl-3-chloro-propene cpds.
01/30/1991EP0410380A2 Novel process for the synthesis of 2-fluoro-1-olefins
01/30/1991EP0410379A2 Pharmaceutically active 3-aryl and 3-heteroaryl-2-fluoro-1-olefins
01/30/1991EP0410336A1 Process for reduction of chlorinated solvent emissions
01/30/1991EP0410233A2 (4-Arylbutyl) cyclohexane derivatives
01/30/1991EP0409834A1 Process for the co-production of aromatic carboxylate and alkyl iodides
01/30/1991EP0216785B1 Indene analogs of mevalonolactone and derivatives thereof
01/29/1991US4988826 Process for intermediates for insecticidal compounds
01/29/1991US4988743 Acrylated polysiloxanes for protective coatings
01/29/1991CA1279658C Process for the purification of 1,2-dichloroethane
01/28/1991CA2022051A1 Process for reduction of chlorinated solvent emissions
01/27/1991CA2016308A1 Stabilized 1,1,1-trichloroethane compositions
01/26/1991CA2021521A1 Process for the synthesis of 2-fluoro-1-olefins
01/25/1991CA2021464A1 Halogen-exchange process
01/24/1991DE3923684A1 Drying carbon tetra:chloride using sodium-lead - esp. for use in treating waveguide preform tubes
01/23/1991EP0409049A2 Method for the stereoselective production of Z-1,2-diaryl-alkyl-chlorides and their conversion to azolylmethyloxiranes as well as intermediates
01/23/1991EP0408759A1 Method of obtaining bromated aromatic and heterocyclic combinations containing acceptor groups
01/23/1991EP0408612A1 Liquid-phase process for the oxyiodination of naphthalene
01/23/1991CN1048700A Process for preparing 1,2-dichloro-1,1,2-trifluoroethane
01/23/1991CN1048699A Process for preparing 1,1,1,2-tetrafluoroethane
01/22/1991US4986974 Process for the separation of halogenated hydrocarbons from hydrochloric acid
01/22/1991US4986931 Cyclohexane derivatives
01/22/1991CA1279331C Reductive dehalogenation of halogen compounds