Patents
Patents for C07C 25 - Compounds containing at least one halogen atom bound to a six-membered aromatic ring (5,308)
06/2004
06/10/2004US20040110958 Novel arylamine derivatives having fluorene skeleton, synthetic intermediates thereof, processes of producing those, and organic electrolumivescene devices
06/10/2004US20040110027 Organic light-emitting device using paracyclophane
06/03/2004US20040106798 negative anisotropy of the dielectric constants; liquid-crystalline media and optical and electro-optical display elements
05/2004
05/26/2004EP1254103B1 Method of making 3,5-difluoroaniline from 1,3,5-trichlorobenzene
05/26/2004EP0880490B1 Synthesis of perfluoro aromatic boranes and borates
05/26/2004CN1500104A Conjugated polymerts cotg. spirobifluorene units and fluourene units, and use thereof
05/25/2004US6740685 A thermosetting resin contains an acetylenic oligomer or polymer with multi-phenyl adamantane ring, and bonded with porogen which can decompose to form pore; use as dielectric substrate in microchips, circuit boards
05/25/2004US6740263 Anthracene compound and chemiluminescent composition comprising the same
05/21/2004WO2004041758A1 New stilbene derivatives and their use as aryl hydrocarbon receptor ligand antagonistics
05/19/2004EP1418950A1 Solid-phase nucleophilic fluorination
05/18/2004US6737125 Fluorinated cyclopenta[a]naphthalenes and their use in liquid-crystal mixtures
05/13/2004US20040089845 Phenylcyclohexanes and a liquid-crystalline medium
05/13/2004DE10251191A1 Verfahren zur Trennung von m- und p-Dichlorbenzol enthaltenden Gemischen A process for separating m- and p-dichlorobenzene mixtures containing
05/12/2004EP1418164A1 New stilbene derivatives and their use as aryl hydrocarbon receptor ligand antagonists
05/12/2004EP1026143B1 Novel liquid-crystal compounds having large negative value of permittivity anisotropy, liquid-crystal composition, and liquid-crystal display element
05/06/2004US20040087816 Reacting 2,6-di-halo-substituted benzaldehydes with an alkaline medium; high selectivity and yield, and scale-up to production scale satisfies safety requirements.
05/06/2004EP1415964A1 Process for the separation of mixtures containing m- and p-dichlorobenzene
05/06/2004EP1294663B1 Fluorinated benzene manufacturing process
05/06/2004DE10249748A1 Verfahren zur Herstellung von 1,3-Dihalogen-substituierten Benzolderivaten A process for the preparation of 1,3-dihalo-substituted benzene derivatives
04/2004
04/29/2004DE4430668B4 Derivate des 4,4-Difluorcyclohexans und 4,4-Difluor-1-cyclohexens und ihre Verwendung in Flüssigkristallmischungen Derivatives of 4,4-Difluorcyclohexans and 4,4-difluoro-1-cyclohexene, and their use in liquid crystal mixtures
04/28/2004EP1413566A1 Process for the preparation of 1,3-dihalo substituted benzene derivatives
04/28/2004EP1412311A1 Novel treatment of adrenocortical hypersecretion and tumour growth
04/28/2004EP1107936B1 Copper-catalysed enantioselective allylic substitution reactions
04/22/2004US20040077502 Stable ethylene inhibiting compounds and methods for their preparation
04/21/2004EP1409441A1 Indane compounds with negative dielectric anisotropy
04/21/2004EP1409440A1 A method to inhibit ethylene responses in plants
04/21/2004EP1409125A1 Microencapsulated catalyst, methods of preparation and methods of use thereof
04/21/2004EP1171406B1 Method of producing biaryls
04/15/2004WO2004031124A1 Cyclic nitromethyl acetic acid derivatives
04/15/2004CA2498186A1 Cyclic nitromethyl acetic acid derivatives
04/08/2004WO2004029015A1 1,7,8-trifluoronaphthalene-2-naphthol, and method for producing liquid crystal compound using same
04/08/2004US20040065866 Low viscosity; solubility at low temperature; low voltage display device
04/07/2004EP0945418B1 Liquid crystal compounds exhibiting negative anisotropy of permittivity, liquid crystal compositions, and liquid crystal displays
04/06/2004CA2284646C Synthesis of intermediates useful in preparing tricyclic compounds
03/2004
03/31/2004EP1401950A1 Low molecular weight hydrogenated nitrile rubber
03/31/2004EP1401844A2 Use of a composition of an ionic nature as a substrate reagent, a composition constituting a fluorination reagent and a method using same
03/31/2004EP0770065B1 Tri-substituted phenyl derivates useful as pde iv inhibitors
03/25/2004DE10242224A1 Verfahren zur Kernchlorierung von ortho-Xylol Process for the nuclear chlorination of ortho-xylene
03/24/2004EP1400578A1 Electrolumisescent 9,9-bis(4-amino)-1,1'-biphenyl)fluorene derivatives
03/23/2004US6710217 Chlorination of biphenyl with chlorine in presence of ring-chlorination catalyst; distillation
03/18/2004WO2004022512A1 METHOD FOR PRODUCING p-DICHLOROBENZENE
03/18/2004WO2003061029A3 Organic compositions
03/18/2004US20040054239 Method for the nuclear chlorination of ortho-xylene
03/18/2004US20040053158 Onium salts and the use therof as latent acids
03/17/2004EP1398304A1 Process for the nuclear chlorination of ortho-xylene
03/16/2004US6706934 Method for producing 2,3,4,5-tetrachlorobenzotrifluoride
03/16/2004US6706933 Mixing a tetrafluoroaromatic derivative in an organic solvent with a reducing agent in aqueous ammonia, under an inert gas
03/16/2004US6706918 3-cyano-2,4,5-trifluoro-benzoyl fluoride and intermediate products for the production thereof
03/16/2004US6706853 Compound for use as a mineral fibre binder and process for providing such
03/11/2004WO2004020375A1 Cyclopenta[b]naphthalene derivatives
03/11/2004WO2004020373A1 Spiro compound and organic luminescence device using the same
03/11/2004WO2004020372A1 Fluorene compound and organic luminescent device using the same
03/11/2004WO2004020371A1 Condensed polycyclic compound and organic light-emitting device using the same
03/10/2004CN1480438A Stable ethene in hibitory compound and its prepn method
03/04/2004WO2003027050A3 Process for preparing pentacene derivatives
03/04/2004US20040041125 Fluorinated naphthalenes, liquid-crystal mixtures comprising them, and liquid-crystal displays
03/04/2004DE10238999A1 New cyclopenta(b)naphthalene derivatives, used in liquid crystal medium for electrooptical display or mesogenic medium for electrooptical light control element, have cyclopentane, cyclopentene, oxocyclopentene or oxocyclopentane ring
02/2004
02/26/2004DE10325697A1 Hydrogenation of fluorine-containing cyclohexene derivatives, useful in preparation of liquid crystal materials, in presence of basic ion exchanger that inhibits defluorination
02/25/2004EP1294662B1 Processes for fluorinating aromatic ring compounds
02/25/2004CN1477089A Substituted dicyclohexylalkyl diphenyl derivative with good low-tomp, mutual solubility, its preparation and application
02/19/2004WO2004014550A2 Novel nickel-carbene, palladium-carbene and platinum-carbene complexes, their production and use in catalytic reactions
02/19/2004US20040034260 Oxidative halogenation of aromatic compound
02/18/2004CN1475471A 1-aryl-2 perluoro or polyfluoro phenyl ethylene and its derirative, its synthesis and application
02/17/2004US6693178 Protecting groups useful in the synthesis of polysaccharides, natural products, and combinatorial libraries
02/17/2004US6692893 Onium salts, photoacid generators, resist compositions, and patterning process
02/17/2004US6692657 Alkenyl compound with 2,3-difluorophenyl group
02/12/2004WO2004013094A2 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
02/12/2004CA2494404A1 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
02/11/2004EP1388529A2 Stable ethylene inhibiting compounds and methods for their preparation
02/11/2004CN1473814A Intemediate for preparing alkyl-dihalogeno phenyl substituted keto-enol
02/10/2004US6689291 Liquid-crystalline medium
02/05/2004US20040023060 Structure including at least three planar moieties, which are linearly configured such that one planar moiety is located between two neighboring planar moieties and shares an atom with each of the moieties
02/05/2004DE10232323A1 Production of halogen fluorides and organohalogen fluorides, useful as etchants, comprises reaction of an oxygen compound of the halogen or organohalogen compound with hydrogen fluoride or hydrofluoric acid in a non-water miscible solvent
02/04/2004CN1137157C Activating composition of metallocene matches in olefin catalytic copolymerization process
02/03/2004US6686495 In presence of palladium catalyst; useful in producing chemical intermediates for pharmaceuticals, optical brightening agents and agrochemicals
01/2004
01/28/2004CN1471502A Oxidative halogenation of aromatic compound
01/27/2004US6682785 Fluorinated anthracenes, and their use in liquid-crystal mixtures
01/21/2004EP1381639A1 Conjugated polymers containing spirobifluorene units and fluorene units, and the use thereof
01/21/2004EP1185491B1 Process for the preparation of tetrafluorohalogenbenzenes
01/15/2004DE10227449A1 Nematisches flüssigkristallines Medium Nematic liquid crystalline medium
01/14/2004CN1468206A Process and intermediate compounds for the preparation of pesticidal fluoroolefin compounds
01/14/2004CN1134387C Terphenyl derivative, liquid-crystal composition, and liquid-crystal display
01/13/2004US6677002 Phenylcyclohexanes and a liquid-crystalline medium
01/08/2004US20040006235 Process for the preparation of ring compounds
01/07/2004EP1377376A1 Catalysts for nucleophilic substitution, synthesis thereof, composition containing same and use thereof
01/02/2004EP1373434A1 Fluorinated fluorene derivatives
12/2003
12/30/2003US6670514 For use in liquid-crystal displays; having high absolute values of dielectric anisotropy combined with a favorable viscosity/ clearing point ratios
12/24/2003WO2002092608A3 Use of a composition of an ionic nature as a substrate reagent, a composition constituting a fluorination reagent and a method using same
12/24/2003CN1463263A Method to inhibit ethylene responses in plants
12/17/2003CN1462303A Double-spiro organic compounds and electric-field luminescent devices
12/17/2003CN1131209C Alkyl dihalogenated phenyl-substituted ketoenols useful as. pesticides and herbicides
12/17/2003CN1131191C 1,4-diaryl-2,3-difuror-2-butene insecticidal and acaricidal agents
12/16/2003US6664391 N-fluorotriazinium fluorinating agents
12/11/2003US20030227000 Electrooptics
12/10/2003EP1369406A1 Fluorinated naphthalene derivatives, liquid crystal compositions and liquid crystal displays containing them
12/10/2003EP0933346B1 NOVEL p-TERPHENYL COMPOUNDS
12/04/2003US20030224206 Aromatic methylidene compound, methylstyryl compound for producing the same, production method therefor, and organic electroluminescent element
12/04/2003US20030222243 Compounds are suitable for use in liquid crystal display elements. displays for watches or pocket calculators, and large display panels as used in railway stations, airports and sports arenas. Further areas of application are displays of
11/2003
11/19/2003EP1362839A2 Liquid crystal composition having a delta-epsilon- of not less than zero and liquid crystal display device
11/12/2003CN1127461C Process for synthesizing alpha position perfluoro-p-xylene polymer
1 ... 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 ... 54