Patents
Patents for C07C 23 - Compounds containing at least one halogen atom bound to a ring other than a six-membered aromatic ring (1,237)
02/1994
02/24/1994DE4227772A1 2-Fluoro-perfluoroalkyl-cyclohexane derivs. - useful as components of liq. crystal media for electro optical display elements
02/22/1994US5288932 Halogenation a hydroxymethyl cyclopropane with methane sulfonyl halide in the presence of trialkylamine in one pot, without isolation the mesyl halide
02/15/1994US5286901 Prescursors for and synthesis of mono- and difunctionalized acetylenes and difunctional 1,3-diynes
02/03/1994WO1994002563A1 Refrigerant compositions including 1,1,2,2-tetrafluoroethane
01/1994
01/12/1994EP0577750A1 Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane
01/04/1994US5276221 Process for production of polyfluoroolefins
12/1993
12/14/1993US5270345 Non-bioaccumulable pesticides
12/08/1993CN1023002C Fluorocarbon purification process
12/07/1993US5268122 Azeotropic mixture
11/1993
11/09/1993US5260496 Cyclic compounds with and without an unbranched acyclic substituent, adsorption with molecular seive
11/03/1993EP0568115A2 Near-azeotropic blends for use as refrigerants
10/1993
10/20/1993EP0565826A1 Process for the preparation of substituted or unsubstituted chloromethylcyclopropane or bromomethylcyclopropane
10/20/1993EP0489773B1 Process for separating mixtures of partially fluorinated or perfluorinated hydrocarbon compounds
09/1993
09/29/1993EP0308438B1 Liquid crystal phase containing tolanes
09/22/1993EP0414686B1 Derivatives of trifluoromethyl-1-tetralines, preparation and application thereof for the synthesis of compounds having therapeutic properties
09/14/1993CA1322203C Process for preparing fluorinated c_ to c_ hydrocarbons and novel cyclic fluorinated hydrocarbons and their use as propellant gas and working fluid for heat pump systems
09/07/1993US5243044 Synthetic blood
09/01/1993EP0558321A1 Antivirally active N-cycloalkyl alkanol compounds
08/1993
08/19/1993WO1993016022A1 Palladium catalyzed alkylative cyclization useful in synthesis of vitamin d and analogues
08/19/1993CA2129136A1 Palladium catalyzed alkylative cyclization useful in synthesis of vitamin d and analogues
08/03/1993US5233105 Process for halogen-fluorine exchange in organic compounds and catalysts for this process
07/1993
07/28/1993EP0552303A1 Process for production of polyfluoroolefins.
07/22/1993WO1993009074A3 Chlorination process, alkylation of products of said process and some products thereof
07/13/1993US5227560 Vinylene or exomethylene groups from active methine compounds
07/07/1993EP0549980A1 Processes for the preparation of octafluoro-[2,2] paracyclophane
06/1993
06/16/1993EP0545942A1 Near-azeotropic blends for use as refrigerants.
06/16/1993CN1073161A Endothelin receptor antagonists
06/15/1993US5220082 Process for production of polyfluoroolefins
06/15/1993US5220048 Substituted benzocyclobutenes, a process for their preparation and their use
06/09/1993EP0545304A1 Process for the preparation of substituted indenes and their use as ligands for metallocene catalysts
05/1993
05/19/1993EP0541793A1 Vinyl compounds and liquid-crystal medium.
05/13/1993WO1993009078A1 Chlorination and elimination process and some products thereof
05/13/1993WO1993009074A2 Chlorination process, alkylation of products of said process and some products thereof
05/13/1993WO1993008799A1 Endothelin receptor antagonists
05/13/1993WO1993005002A3 Gem-dihydropolyfluoroalkanes and monohydropolyfluoroalkenes, processes for their production, and use of gem-dihydropolyfluoroalkanes in cleaning compositions
05/13/1993CA2122820A1 Endothelin receptor antagonists
05/13/1993CA2122465A1 Chlorination process, alkylation of products of said process and some products thereof
05/13/1993CA2122265A1 Chlorination and elimination process and some products thereof
05/11/1993US5210341 Processes for the preparation of octafluoro-[2,2]paracyclophane
05/11/1993US5209868 Liquid crystal medium
04/1993
04/15/1993WO1993007128A1 Cyclic ureas and analogues useful as retroviral protease inhibitiors
04/15/1993CA2120925A1 Substituted cyclic carbonyls and derivatives thereof useful as retroviral protease inhibitors
04/14/1993CN1070903A Gm-dihydropolyfluoroalkanes and monohydro-polyfluoroalkene processes for their producition, and use in cleaning compositions
04/08/1993EP0545942A4 Near-azeotropic blends for use as refrigerants.
03/1993
03/24/1993EP0306505B1 Acetylene derivatives as components of liquid crystal phases
03/23/1993US5196140 Electro-optical liquid crystal display element
03/18/1993WO1993005002A2 Gem-dihydropolyfluoroalkanes and monohydropolyfluoroalkenes, processes for their production, and use of gem-dihydropolyfluoroalkanes in cleaning compositions
02/1993
02/24/1993EP0527740A1 Azeotropic composition of perfluoro-1,2-dimethylcyclobutane with 1,1-dichloro-1-fluoroethane.
02/10/1993EP0526477A1 Halocarbon blends.
02/10/1993CN1068810A Catalytic hydrogenolysis
02/04/1993WO1993002029A1 Catalytic hydrogenolysis
02/03/1993CN1068519A Catalyst prepared by particular preparation method and its use in process for preparing tertiary olefins from alkyl-tert-alkylethers
01/1993
01/28/1993DE4217248A1 Vinylverbindungen und fluessigkristallines medium Vinyl compounds and fluessigkristallines medium
01/26/1993US5182040 Refrigerant, blowing agent, propellant
01/19/1993US5180861 Gas phase catalytic hydrofluorination and chlorination of hexachlorocyclopentadiene
01/07/1993EP0521686A1 Stereoselective production of hydroxyamide compounds from chiral a-amino epoxides
01/07/1993EP0521492A2 Perfluoro (ethyldimethylcyclohexane)
01/05/1993US5177272 Reacting a perhalogenated alkane with a tris-dialkylamino phosphine
01/05/1993US5176757 1,1,2,2,3,3-hexafluorocyclopentane and use thereof in compositions and processes for cleaning
01/03/1993CA2072315A1 Perfluoroethyldimethyl cyclohexane
01/03/1993CA2072237A1 Stereoselective production of hydroxyamide compounds from chiral –-amino epoxides
12/1992
12/15/1992EP0526477A4 Halocarbon blends.
12/06/1992WO1992021734A1 Vinyl compounds and liquid-crystal medium
12/06/1992CA2088771A1 Vinyl compounds, and a liquid-crystalline medium
11/1992
11/24/1992EP0527740A4 Azeotropic composition of perfluoro-1,2-dimethylcyclobutane with 1,1-dichloro-1-fluoroethane.
11/17/1992US5164114 Liquid crystal
11/12/1992WO1992019748A1 Herpesvirus particles and vaccine
11/10/1992US5162594 Process for production of polyfluoroolefins
11/04/1992CA2041816A1 Non-bioaccumulable pesticides
10/1992
10/15/1992WO1992017558A1 Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane
10/07/1992EP0441876A4 Non-bioaccumulable pesticides
09/1992
09/08/1992US5146014 Inert, stable fluid
08/1992
08/19/1992EP0498817A1 Process for producing fluorinated organic compounds.
08/05/1992EP0497218A2 Process for preparing perhalogenated olefins
08/04/1992US5136113 Catalytic hydrogenolysis
07/1992
07/22/1992EP0494994A1 Fluorocarbon purification process.
07/14/1992US5129997 Distillation in a rectification column and dilution
06/1992
06/17/1992EP0489773A1 Process for separating mixtures of partially fluorinated or perfluorinated hydrocarbon compounds.
05/1992
05/27/1992CN1061399A Process for production of polyfluoroolefins
05/20/1992EP0449831A4 Compounds and methods based on 1.1.1)propellane
04/1992
04/30/1992WO1992006942A1 Process for production of polyfluoroolefins
04/28/1992US5108652 Liquid crystal dielectrics
04/15/1992EP0480528A1 Process for the preparation of polyvinyl compounds
04/10/1992CA2053009A1 Process for the preparation of polyvinyl compounds
03/1992
03/25/1992EP0313604B1 Electro-optical liquid crystal display element
03/03/1992US5093512 Reacting Fluoroalkylsilanes With Fluoroalkyl Olefins
02/1992
02/11/1992US5087765 Process for preparing chlorotrifluoroethylene telomers and new telomers obtained
01/1992
01/28/1992US5084199 1,1,2,2,3,3-hexafluorocyclopentane and use thereof in compositions and processes for cleaning
01/27/1992WO1992001762A1 Near-azeotropic blends for use as refrigerants
01/21/1992US5082859 Derivatives of benzocycloalkenyldihydroxyalkanoic acids and medications containing them
01/08/1992EP0465037A1 Solvent composition
12/1991
12/03/1991US5070059 Ammoxidation; mixed oxides of vanadium, chromium, molybdenum a nd boron
11/1991
11/26/1991US5068053 Liquid crystals for optical apparatus
11/21/1991DE4015681A1 Partly-fluorinated 1,2-di:substd. ethylene(s) - useful as components of liq. crystal media for electro-optical displays
11/13/1991CN1056115A Halocarbon blends
11/06/1991EP0455399A2 Process for making organic fluorine compounds
10/1991
10/26/1991WO1991016390A1 Halocarbon blends
10/26/1991CA2079776A1 Halocarbon blends
10/16/1991EP0451793A2 Method for the production of mixtures of chlorotetrafluoroethane and octafluorocyclobutane
10/16/1991EP0306521B1 Ethine derivatives as compounds of liquid crystal phases
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