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)
12/1999
12/01/1999CN1046931C Synthesis process of chlorocyclohexane with waste from dithiodicyclohexane prodn.
11/1999
11/10/1999EP0954515A1 Solvents for use in fluorination reactions
10/1999
10/19/1999US5968410 Liquid crystal displays
10/06/1999EP0946473A1 Fluorinated phenantrene derivatives for liquid crystal mixtures
09/1999
09/23/1999WO1999047479A1 Method for chlorinating ketones
09/23/1999WO1999047474A1 Coupling reactions with palladium catalysts
09/23/1999DE19812095A1 Chlorination of ketones to chlorinated alkenes useful as intermediates for organic synthesis, e.g. of alkyne
09/23/1999CA2321791A1 Coupling reactions with palladium catalysts
09/22/1999CN1045201C Method for synthesizing and separating condensed bromoacenaphthylene
09/10/1999WO1999044973A1 Processes for purifying perfluorocyclobutane
08/1999
08/17/1999US5939546 Useful deoxofluorination reagents
08/04/1999EP0933364A1 Imidazolate sulfur difluorides
07/1999
07/27/1999US5929264 Process for the preparation of substituted indenes and their use as ligand systems for metallocene catalysts
07/14/1999EP0716065B1 Process for producing hexafluorocyclobutene and process for producing hexafluorocyclobutane
07/08/1999WO1999033771A1 Process for the preparation of compounds having -ch2-chf- groups
06/1999
06/22/1999US5914352 Methods for the use of stabilized fluorocarbon emulsions
06/08/1999US5910617 Process for the preparation of aliphatic or cycloaliphatic chlorides
05/1999
05/20/1999DE19748818A1 Optically active, smectic liquid crystal mixture, containing a temperature stable polyfluorinated cyclohexane derivative useful of the fabrication of switching and display devices
05/18/1999CA2109744C 1-phenylbicyclo¬2.2.2|octane derivatives, a process for their preparation and pharmaceutical compositions holding same
05/06/1999EP0913380A1 Process for the preparation of fluorinated olefin
04/1999
04/14/1999EP0907625A1 Fluorous reaction and separation systems
03/1999
03/30/1999US5888422 Fluorinated phenanthrene derivatives and their use in liquid-crystal mixtures
03/25/1999WO1999014173A1 Method for producing perhalogenated cyclopentene
03/25/1999DE19831712A1 Fluorocyclohexane derivatives with olefinic end groups
03/17/1999CN1210846A Method for preparing alkane hydrofluoride
03/09/1999US5879585 Exhibit good miscibility with other liquid crystalline compounds; useful for display of watches, computer terminals, and televisions
01/1999
01/20/1999EP0891959A1 Process for the preparation of aliphatic or cycloaliphatic chlorides
12/1998
12/30/1998EP0887329A1 Process for the preparation of hydrofluoroalkanes
12/22/1998US5852142 Process for the preparation of an olefin polymer
12/16/1998CN1041175C Catalyst prepared by particular preparation method and use in process for preparing tertiary olefins from alkyl-tert-alkylethers
12/15/1998US5849962 Process for the preparation of octafluoro-(2,2) paracyclophane
12/10/1998WO1998055429A1 Solvents for use in fluorination reactions
12/10/1998CA2262532A1 Solvents for use in fluorination reactions
12/08/1998US5847243 Process for producing fluorinated alkene and fluorinated alkane
12/02/1998EP0881202A1 Manufacturing method for hexafluorocyclobutane
11/1998
11/24/1998US5841005 Parylene AF4 synthesis
11/24/1998US5840948 Process for the preparation of substituted indenes and their use as ligand systems for metallocene catalysts
11/19/1998WO1998051651A1 Fluorinated hydrocarbons, detergents, deterging method, polymer-containing fluids, and method of forming polymer films
11/19/1998WO1998051650A1 Fluorinated, saturated hydrocarbons
11/19/1998WO1998051649A1 Fluorinated, saturated hydrocarbons, compositions thereof, polymer-containing fluid, and method of forming polymer film
11/11/1998EP0877010A1 Fluorinated alkanes and their uses
11/10/1998US5834521 Treatment of progestin mediated maladies; osteoporosis, cancer
10/1998
10/28/1998EP0663941B1 2-fluorocyclohexene derivatives
09/1998
09/24/1998WO1998041490A1 Af4 synthesis
09/02/1998EP0861828A1 Liquid crystalline compounds containing hydrocarbon groups, liquid crystalline compositions and liquid crystal display elements
09/01/1998US5800734 Liquid crystals, electrooptical displays
09/01/1998US5800730 Fluorocarbons
08/1998
08/25/1998US5798354 Cosmetic, therapy
08/04/1998US5789580 Selectively fluorinated organic compounds
06/1998
06/30/1998US5773404 Cleaning mixtures
06/25/1998WO1998027035A1 Fluorinated phenantrene derivatives for liquid crystal mixtures
06/25/1998DE19653008A1 Fluorierte Phenanthren-Derivate und ihre Verwendung in flüssigkristallinen Mischungen Fluorinated phenanthrene derivatives and their use in liquid crystal mixtures
06/23/1998US5770780 Reaction of cycloaliphatic olefin and hydrohalic acid, noncatalytic reaction, high yield and purity, chlorination, bromination, iodination
06/09/1998US5763719 Thermally stable fullerene derivatives and process for producing the same
06/09/1998US5763703 Manufacturing method for hexafluorocylobutene and hexafluorocyclobutane
06/03/1998EP0783545B1 Polymers of vinyl(perfluorocyclopropane)
05/1998
05/20/1998EP0577750B1 Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane
04/1998
04/29/1998EP0837851A1 Fluorinated phenanthrene derivatives and their use in liquid crystal mixtures
04/28/1998US5744663 Process for preparing cyclopentyl bromide
04/22/1998EP0837045A1 Liquid crystalline compound having alkynyl group, and liquid crystal composition and liquid crystal display device therefrom
04/14/1998US5739376 Fullerene derivatives, methods of preparing them and their use
03/1998
03/25/1998EP0830436A1 Refrigerants based on hydrofluoroether of fluoroether
03/03/1998US5723621 Reaction of silylaromatic with aromatic compound to form biaryl compound
02/1998
02/18/1998EP0642483B1 Chlorination and elimination process and some products thereof
01/1998
01/28/1998EP0820426A1 SUBSTITUTED DIBENZ[a,f]AZULENES AND METHODS OF PREPARATION
01/08/1998WO1998000376A1 Fluorous reaction and separation systems
11/1997
11/20/1997WO1997043233A1 Process for the preparation of fluorinated olefin
10/1997
10/29/1997EP0695287B1 Fullerene derivatives, methods of preparing them and their use
09/1997
09/24/1997EP0675865B1 Methyleneperfluorocycloalkanes and their use in the production of thermoplastic fluororesins
09/12/1997WO1997032835A1 Process for producing fluorine compounds
09/11/1997DE19607999A1 Stable liquid crystalline or mesogenic substituted cyclopentenyl derivatives
08/1997
08/27/1997EP0494994B1 Fluorocarbon purification process
08/13/1997EP0789011A1 Process for the preparation of alkyl halides
07/1997
07/30/1997EP0607334B1 Cyclic ureas and analogues useful as retroviral protease inhibitiors
07/16/1997EP0783545A2 Polymers of vinyl(perfluorocyclopropane)
07/15/1997US5648566 Methyleneperfluorocycloalkanes and their use in the production of thermoplastic fluororesins
06/1997
06/03/1997US5635099 Near-azeotropic blends for use as refrigerants with pentafluoroethane, trifluoroethane, and tetrafluoroethane
05/1997
05/13/1997US5628930 Stabilization of fluorocarbon emulsions
05/01/1997WO1997015541A1 CYCLIC ALPHA-PERFLUORO-DI-p-XYLYLENES FOR USE IN THE FORMATION OF LOW DIELECTRIC CONSTANT ALPHA-PERFLUORO-p-XYLYLENE POLYMERS
04/1997
04/24/1997WO1997014666A1 Processes for the preparation of octafluoro-[2,2]paracyclophane
04/16/1997EP0768289A1 Process for producing fluorinated alkene derivative and fluorinated alkane derivative
04/16/1997CN1034569C Endothelin receptor antagonists
04/15/1997US5621147 Liquid crystal intermediates
04/09/1997EP0680462B1 Thermally stable fullerene derivates and process for producing the same
04/02/1997EP0765873A1 Cyclic ureas and analogues useful as retroviral protease inhibitors
04/01/1997US5616276 Azeotrope-like refrigerants with chlorodifluoromethane, pentafluoroethane, and C2 -C4 hydrocarbon
03/1997
03/26/1997CN1146195A Azeotropic composition
03/19/1997CN1145223A Endothelin receptor antagonists
03/18/1997CA2008341C Benzocycloalcenyl dihydroxy alcanoic acid derivatives, process for their preparation and drugs containing the same
03/12/1997EP0650513B1 Refrigerant compositions including 1,1,2,2-tetrafluoroethane
03/04/1997US5608131 Pentacyclic hydrocarbon compound and halogenated pentacyclic hydrocarbon compound, and preparation processes thereof
02/1997
02/27/1997WO1997007234A1 Process for producing optically active trans-2-bromoindan-1-ol
02/04/1997US5599783 Cleaning solvent composition and a method for cleaning or drying articles
01/1997
01/29/1997EP0755909A1 Azeotropic composition
01/23/1997WO1997002247A1 Fluorinated phenanthrene derivatives and their use in liquid crystal mixtures
01/15/1997EP0753499A1 Process for preparing cyclopentylbromide
01/13/1997CA2180814A1 Process for preparing cyclopentyl bromide
01/09/1997DE19524230A1 Fluorierte Phenanthren-Derivate und ihre Verwendung in flüssigkristallinen Mischungen Fluorinated phenanthrene derivatives and their use in liquid crystal mixtures
01/08/1997EP0541793B1 Vinyl compounds and liquid-crystal medium
12/1996
12/19/1996WO1996040834A1 Refrigerants based on hydrofluoroether of fluoroether
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