Patents for C07C 25 - Compounds containing at least one halogen atom bound to a six-membered aromatic ring (5,308) |
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06/16/1992 | US5122297 Tetracyclic benzene derivatives and liquid-crystalline media |
06/13/1992 | CA2056270A1 Bromination process |
06/10/1992 | EP0489406A1 Decabromodiphenylalkane process |
06/10/1992 | EP0489140A1 Method for preparing 1,1-bis(chlorophenyl) 2,2,2-trichloroethanol. |
06/09/1992 | US5120467 Anisotropic compounds and liquid crystal mixtures |
06/04/1992 | WO1992009367A1 Process for regenerating a zeolite catalyst |
06/04/1992 | CA2097306A1 Process for regenerating a zeolite catalyst |
06/04/1992 | CA2055519A1 Decabromodiphenylalkane process |
06/03/1992 | EP0307446B1 Liquid phase isomerization of iodoaromatic compounds |
06/02/1992 | US5118879 Used in the synthesis of medicinal and agricultural chemicals and water- and oil-repellent agents |
05/14/1992 | DE4035509A1 New cyclohexyl-cyclohexene cpds. uses in liq. crystal medium - for LC or electro=optical display with low viscosity |
05/12/1992 | CA1300644C Process for the preparation of naphthacenes |
05/06/1992 | EP0364538B1 Difluorobenzol derivatives |
05/05/1992 | US5110903 Process for the preparation of mixed parylene dimers free of alpha-halogens |
05/03/1992 | WO1992007811A1 Oxyiodination process for manufacture of 2,6-diiodonaphthalene |
05/03/1992 | CA2086744A1 Oxyiodination process for manufacture of 2,6-diiodonaphthalene |
04/30/1992 | DE4034123A1 Partially fluorinated alkane derivs. - useful as components of liq. crystal media for electro=optical displays |
04/30/1992 | DE4034109A1 Verfahren zur herstellung von biarylen A process to prepare biaryls |
04/27/1992 | WO1992007809A1 Process for the production of diaryls |
04/27/1992 | CA2094802A1 Process for the production of diaryls |
04/22/1992 | EP0481317A2 Method for dechlorination and/or debromination of aromatic compounds containing fluorine with chlorine and/or bromine |
04/21/1992 | US5107044 Process for bromination of biphenyl with brcl |
04/15/1992 | EP0480008A1 Phenyl cyclohexanes and liquid crystal medium. |
04/15/1992 | EP0479972A1 Phenyl cyclohexanes and liquid cristal medium |
04/14/1992 | US5105036 Friedel-Crafts catalyst and oxy-substituted cyclic amidines as cocatylsts; preferential formation of p-isomer |
04/14/1992 | US5104878 Insecticides, miticides |
04/08/1992 | EP0479542A1 A phosphino binaphthyl compound and transition metal complexes thereof |
04/08/1992 | EP0478740A1 Phenyl cyclohexanes and liquid crystalline medium |
04/07/1992 | CA1298583C Process for producing polybrominated higher alkylbenzenes |
04/02/1992 | DE4111765A1 New penta: and tetra:fluoro-benzene cpds. - useful in liquid crystal medium for electro=optical display esp. super-twist nematic display |
04/02/1992 | DE4107641A1 New di:fluoro-methyl substd. cyclic cpds. used in liq. crystal medium |
04/01/1992 | EP0478311A2 Preparation of 6-Substituted 2-Vinylnaphthalene |
04/01/1992 | CN1059899A Process for preparing product stream rich in naphthalene and 2-monoiodonaphthalene |
03/31/1992 | US5101061 Novel benzonitriles, benzaldehydes and benzyl alcohols |
03/31/1992 | CA1298318C Method for producing alkylstyrene |
03/31/1992 | CA1298317C Vapor phase bromination of aromatic compounds |
03/27/1992 | CA2052185A1 Preparation of 6-substituted-2-vinylnaphthalene |
03/25/1992 | EP0313604B1 Electro-optical liquid crystal display element |
03/18/1992 | EP0475273A1 Halogenated alcenyl compounds |
03/18/1992 | EP0475238A2 Mesogenic glycidyl esters |
03/14/1992 | CA2051241A1 Mesogenic glycidyl esters |
03/11/1992 | WO1992004308A1 Process for preparing a product stream rich in naphthalene and 2-monoiodonaphthalene |
03/11/1992 | EP0474465A1 Process for isomerizing trichlorobenzene |
03/11/1992 | EP0474074A1 Process for preparing dichlorobenzene with high content of the p-isomer |
03/11/1992 | CA2086743A1 Process for preparing a product stream rich in naphthalene and 2-monoiodonaphthalene |
03/04/1992 | EP0264435B1 Smectic liquid crystal phases |
03/04/1992 | CA2050503A1 Process for isomerizing trichlorobenzene |
03/03/1992 | US5093512 Reacting Fluoroalkylsilanes With Fluoroalkyl Olefins |
03/03/1992 | US5093026 Biphenylylethanes |
03/03/1992 | US5092971 Bromination |
02/26/1992 | EP0471813A1 4,4'-disubstituted 2',3-difluorbiphenyls and liquid crystalline medium. |
02/25/1992 | US5091580 Process for the preparation of 2,6-difluoroaniline |
02/18/1992 | US5089629 From dicyclohexyl-4,4*-dione |
02/12/1992 | EP0470651A1 1,2-Di(4-isobutylphenyl) ethane and its preparation and use as intermediate |
02/11/1992 | US5087769 Preparation of 6-substituted-2-vinylnaphthalene |
02/11/1992 | US5087764 Deprotonation of a 1-substituted-2,3-difluorobenzene using an organometallic compound and reacting the reaction product with an electrophile |
02/11/1992 | US5087724 Substituted benzenes useful as intermediates |
02/05/1992 | EP0469569A2 Process for decabromodiphenylalkane predominant product |
02/05/1992 | EP0469113A1 PREPARATION OF 4-BROMO-o-XYLENE |
01/28/1992 | US5084204 Compounds for liquid crystal display elements |
01/28/1992 | CA1294988C Process for the catalytic trans-halogenation of a poly-iodo-benzene |
01/22/1992 | EP0466698A1 Preparation of 2-halofluorobenzene |
01/21/1992 | US5082982 Zeolite type X catalyst |
01/21/1992 | US5082859 Derivatives of benzocycloalkenyldihydroxyalkanoic acids and medications containing them |
01/15/1992 | EP0465621A1 Partially fluorinated compounds. |
01/14/1992 | US5081288 Process for the preparation of substituted 3,5-dichloro-2,4-difluoro-benzenes |
01/14/1992 | CA1294267C Preparation of 1,4-dichlorobenzene |
01/09/1992 | WO1992000264A1 Method for preparing 1,1-bis(chlorophenyl) 2,2,2-trichloroethanol |
01/09/1992 | CA2064864A1 Process for the preparation of 1,1-bis(chlorophenyl)-2,2,2,-trichloroethanol |
01/01/1992 | CN1057450A Process for preparing 1,1-di(chlorophenyl)-2,2,2 trichloroethanol |
12/31/1991 | US5077297 Novel compounds |
12/31/1991 | CA1293735C Rooperol and its derivatives |
12/27/1991 | EP0462237A1 1,2-disubstituted 2,6-difluorobenzene compounds and liquid crystal media. |
12/12/1991 | WO1991018855A1 Process for halogenating aromatic compounds |
12/11/1991 | EP0460977A1 Process for reducing the amount of DDT-related impurities in 1,1-bis (chlorophenyl)-2,2,2-trichloroethanol |
12/11/1991 | EP0460922A1 Decabromodiphenyl alkane process |
12/11/1991 | EP0460465A2 Process for the preparation of styrene derivatives having a double bond in an ethylene-extended chain and ethylene-extended styrene derivatives |
12/10/1991 | US5072038 Chemical intermediates for bactericides |
11/27/1991 | EP0458176A1 Bicyclohexyl derivatives |
11/26/1991 | US5068475 Process for purifying unreacted 1,2-dichloroethane from a 1,2-dichloroethane pyrolysis process |
11/26/1991 | US5068053 Liquid crystals for optical apparatus |
11/21/1991 | DE4015681A1 Partly-fluorinated 1,2-di:substd. ethylene(s) - useful as components of liq. crystal media for electro-optical displays |
11/14/1991 | WO1991017135A1 Phenyl cyclohexanes and liquid crystal medium |
11/14/1991 | WO1991017134A1 Phenyl cyclohexanes and liquid cristal medium |
11/12/1991 | US5064565 Cyclohexenylethane compound |
11/06/1991 | EP0455058A2 Reagents and method for detecting polychlorinated biphenyls |
11/05/1991 | CA2041783A1 Reagents and method for detecting polychlornated biphenyls |
10/31/1991 | WO1991016291A1 Phenyl cyclohexanes and liquid crystalline medium |
10/31/1991 | WO1991016286A1 PROCESS FOR PRODUCING α-FLUOROSTYROLS |
10/31/1991 | DE4113310A1 New 1-haloalkyl 4-fluoro opt.-phenyl-cyclohexane cpds. - are components of liq. crystal media for twisted cell devices with high stability, good solubility, etc. |
10/31/1991 | DE4111028A1 New fluoro-substd. phenyl-cyclohexane derivs. - are components of liq. crystal media for twisted cell devices, with good solubility, high stability, etc. |
10/31/1991 | DE4108705A1 New halogenated tetra:cyclic benzene derivs. - and use in liq. crystal media for electro=optical recording |
10/31/1991 | DE4013305A1 Verfahren zur herstellung von (alpha)-fluorstyrol Process for the preparation of (alpha) -fluorstyrol |
10/31/1991 | DE4013083A1 New alkyl tri:cyclohexylene-tri:fluoro:methyl-benzene derivs. - are components of liq. crystal media for twisted cell devices with high stability, good solubility etc. |
10/29/1991 | US5061400 Wide temperature range, high response speed, low driving voltage |
10/24/1991 | DE4110865A1 New halogenated phenyl-cyclohexane(s) - useful as components of LC media for electro=optical displays |
10/23/1991 | EP0452909A2 Method of purifying non-converted 1,2-dichloroethane from a 1,2-dichloroethane pyrolysis process |
10/23/1991 | EP0452444A1 Phenylcyclohexanes and liquid crystalline media |
10/22/1991 | US5059708 Pyrene-ring-containing olefin compound, intermediate for synthesizing the olefin compound and method of synthesizing the olefin comopund |
10/22/1991 | CA1291172C Process for the catalytic trans-halogenation of a polyiodo-benzene, and, in particular, of a di-iodo-benzene |