Rings Bonded Directly To Each Other Patents (Class 568/747)
  • Patent number: 10800721
    Abstract: Provided is a method for preparing 2-cyclohexyl cyclohexanol, including: hydrogenating a cyclohexanone dimer with hydrogen gas at a temperature ranging from 150 to 250° C. in a reactor containing a catalyst to prepare 2-cyclohexylcyclohexanol, wherein the molar ratio of the hydrogen gas and oil ranges from 1 to 25. The method has advantages of high yield properties and allows for mass production, thereby enhancing the value of the industrial application.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: October 13, 2020
    Assignee: CHINA PETROCHEMICAL DEVELOPMENT CORPORATION
    Inventors: Yi-Chi Wang, Hsin-Wei Chang, Weng-Keong Tang, Chia-Hui Shen
  • Patent number: 10696641
    Abstract: Disclosed are novel bis(aminophenylphenol) ligands and transition metal compounds derived therefrom. Also disclosed are methods of making the ligands and transition metal compounds.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: June 30, 2020
    Assignee: Univation Technologies, LLC
    Inventors: Catherine Anne Faler, Kevin P. Ramirez
  • Patent number: 8940184
    Abstract: The present invention relates to polymerizable compounds, to processes and intermediates for the preparation thereof, and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS (“polymer sustained”) or PSA (“polymer sustained alignment”) type.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: January 27, 2015
    Assignee: MERCK PATENT GmbH
    Inventors: Andreas Taugerbeck, Achim Goetz
  • Publication number: 20140091256
    Abstract: The present invention describes chemical systems and methods for reducing C—O, C—N, and C—S bonds, said system comprising a mixture of (a) at least one organosilane and (b) at least one strong base, said system being substantially free of a transition-metal compound, and said system optionally comprising at least one molecular hydrogen donor compound, molecular hydrogen, or both.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 3, 2014
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: ROBERT H. GRUBBS, ALEXEY FEDOROV, ANTON TOUTOV, NICHOLAS A. SWISHER
  • Patent number: 8507724
    Abstract: The present invention concerns compounds derived from the anaethetic propofol. The compounds may be useful in the treatment of pain, particularly, but not exclusively, chronic pain and central pain sensitisation.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: August 13, 2013
    Assignee: The University of Dundee
    Inventors: Martin Leuwer, Paul O'Neill, Neil Berry, Gertrud Haeseler
  • Publication number: 20130182202
    Abstract: The present invention relates to liquid-crystalline media (LC media) having negative or positive dielectric anisotropy comprising self-aligning mesogens (SAMs) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the liquid-crystalline medium (LC medium) without conventional imide alignment layers. The LC media may be supplemented by a polymerisable or polymerised component, which serves for stabilisation of the alignment, for adjustment of the tilt angle and/or as passivation layer.
    Type: Application
    Filed: August 29, 2011
    Publication date: July 18, 2013
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Archetti Graziano, Andreas Taugerbeck
  • Publication number: 20130053598
    Abstract: The invention relates to a method for producing a cross-coupling product of a benzenoid dizonium salt according to the general formula (I), wherein the groups R1, R2, R3, R4, and R5 represent hydrogen, halogen, an alkyl, alkenyl, aryl, alkoxy, aryloxy, nitro, cyano, hydroxy, acetyl, and/or diazo groups independently of each, and X represents BF4, Cl, F, SO3CH3, CO2CH3, PF6, ClO2CH3, or CIO4, comprising the following steps: (a) providing a benzenoid amide, which with the exception of the diazo function has the same substituents R1, R2, R3, R4, and R5 as the benzenoid diazonium salt of the general formula (I), and hydrolytically cleaving the amide to form an amine or providing a corresponding amine, (b) diazotizing the amine thus obtained or provided with a nitrite, and (c) subsequently reacting the benzenoid diazonium salt with a coupling partner in the presence of a catalyst to form a cross-coupling product, wherein the coupling parter is represented by the general formula (II), R6, R7, and R8 are the same or
    Type: Application
    Filed: April 22, 2010
    Publication date: February 28, 2013
    Applicant: ZYLUM BETEILIGUNGSGESELLSCHAFT MBH & CO. PATENTE II KG
    Inventors: Nicolas Boege, Andreas Kreipl, Bernd Schmidt, Frank Hoelter, René Berger
  • Publication number: 20120271055
    Abstract: The present invention relates to a compound as a peroxisome proliferator activated receptor (PPAR) activator and a hydrate, a solvate, a stereoisomer and a pharmaceutically acceptable salt thereof, and a pharmaceutical composition, a cosmetic composition, a muscle strengthening agent, a memory improving agent, a therapeutic agent for dementia and Parkinson's disease, a functional food and a feed composition containing the same.
    Type: Application
    Filed: December 1, 2007
    Publication date: October 25, 2012
    Applicant: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION
    Inventors: Heonjoong Kang, Jungwook Chin, Jaehwan Lee
  • Publication number: 20120182516
    Abstract: The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS (“polymer sustained”) or PSA (“polymer sustained alignment”) type.
    Type: Application
    Filed: August 30, 2010
    Publication date: July 19, 2012
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Andreas Taugerbeck, Achim Goetz
  • Patent number: 8211454
    Abstract: A paper product having an antimicrobial composition dispersed with the substrate is provided. In particular, a paper towel such as those found in public washrooms or institutions comprises an antimicrobial composition. The substrate can also be a facial tissue, kitchen towel, serviette or any type of personal hygiene product. The antimicrobial composition preferably comprises a phenol-derived antimicrobial agent. The paper products of the present invention appear dry to the touch.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: July 3, 2012
    Assignee: Kruger Products L.P.
    Inventor: Philip Buder
  • Patent number: 8212084
    Abstract: The present invention relates to a process for preparing 4,4?-[1-(trifluoromethyl)alkylidene]bis(2,6-diphenylphenols), in particular for preparing 4,4?-[1-(trifluoromethyl)ethylidene]bis(2,6-diphenylphenol), which comprises the self-condensation of cyclohexanone in the presence of a basic catalyst to form tricyclic condensation products, dehydrogenation of the resulting tricyclic condensation products in the presence of a supported transition metal catalyst in the condensed phase to form 2,6-diphenylphenol and reaction of the 2,6-diphenylphenol with a trifluoromethyl ketone. The invention further provides an improved process for preparing 2,6-diphenylphenol by aldol self-condensation of cyclohexanone.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: July 3, 2012
    Assignee: BASF SE
    Inventors: Gabriele Gralla, Gunnar Heydrich, Klaus Ebel, Wolfgang Krause
  • Publication number: 20120157704
    Abstract: The present invention relates to a method for the hydroxylation of halogen aryl compounds carried out at a temperature lower than 200° C. in the presence of a catalytic system including a copper-based catalyst and a ligand L according to reaction scheme Formula (A), in which: R is selected from the groups having an acceptor inductive effect and the groups having a donor mesomer effect; M is selected from alkaline or alkaline-earth cations; X is a halogen atom; r is between 0 and 5; and the ligand L is selected from compounds having formula I.
    Type: Application
    Filed: June 8, 2010
    Publication date: June 21, 2012
    Inventors: Marc Taillefer, Anis Tlilli, Florian Monnier, Ning Xia
  • Patent number: 8128950
    Abstract: A paper product having an antimicrobial composition dispersed with the substrate is provided. In particular, a paper towel such as those found in public washrooms or institutions comprises an antimicrobial composition. The substrate can also be a facial tissue, kitchen towel, serviette or any type of personal hygeine product. The antimicrobial composition preferably comprises a phenol-derived antimicrobial agent. The paper products of the present invention appear dry to the touch.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: March 6, 2012
    Assignee: Kruger Products L.P.
    Inventor: Philip Buder
  • Publication number: 20120029235
    Abstract: The present invention concerns compounds derived from the anaethetic propofol. The compounds may be useful in the treatment of pain, particularly, but not exclusively, chronic pain and central pain sensitisation.
    Type: Application
    Filed: December 9, 2009
    Publication date: February 2, 2012
    Inventors: Martin Leuwer, Paul O'Neill, Neil Berry, Gertrud Haeseler
  • Publication number: 20100312020
    Abstract: The present invention relates to a process for preparing 4,4?-[1-(trifluoromethyl)alkylidene]bis(2,6-diphenylphenols), in particular for preparing 4,4?-[1-(trifluoromethyl)ethylidene]bis(2,6-diphenylphenol), which comprises the self-condensation of cyclohexanone in the presence of a basic catalyst to form tricyclic condensation products, dehydrogenation of the resulting tricyclic condensation products in the presence of a supported transition metal catalyst in the condensed phase to form 2,6-diphenylphenol and reaction of the 2,6-diphenylphenol with a trifluoromethyl ketone. The invention further provides an improved process for preparing 2,6-diphenylphenol by aldol self-condensation of cyclohexanone.
    Type: Application
    Filed: December 17, 2008
    Publication date: December 9, 2010
    Applicant: BASF SE
    Inventors: Gabriele Gralla, Gunnar Heydrich, Klaus Ebel, Wolfgang Krause
  • Publication number: 20100292481
    Abstract: A method for producing a conjugated aromatic compound comprising reacting an aromatic compound (A) wherein one or two leaving groups are bonded to an aromatic ring with an aromatic compound (A) having the same structure as that of the above-mentioned aromatic compound (A) or an aromatic compound (B) being structurally different from the above-mentioned aromatic compound (A) and having one or two leaving groups bonded to an aromatic ring, in the presence of a nickel compound, a ligand, a manganese salt and a metal reducing agent.
    Type: Application
    Filed: December 17, 2008
    Publication date: November 18, 2010
    Inventors: Seiji Oda, Takashi Kamikawa
  • Publication number: 20100145060
    Abstract: Embodiments of the invention provide a method of using Schwartz Reagent, Cp2Zr(H)Cl, without accumulating or isolating it. Methods provide mixtures of Cp2ZrCl2, reductants that selectively reduce Cp2ZrCl2, and substrates. After reaction of Cp2ZrCl2 and the reductant, an intermediate reduction product is formed, apparently Schwartz Reagent. The in situ Schwartz Reagent then selectively reduces certain functional groups on the substrate. Substrates include tertiary amides, tertiary benzamides, aryl O-carbamates, and heteroaryl N-carbamates, which are reduced to aldehydes, benzaldehydes, aromatic alcohols, and heteroaromatics, respectively. Compared to prior methods, reagents are inexpensive and stable, reaction times are short, and reaction temperature in certain cases is conveniently room temperature. It has been estimated that using the in situ method described herein instead of synthesized or commercially obtained Schwartz Reagent provides a 50% reduction in cost.
    Type: Application
    Filed: December 3, 2009
    Publication date: June 10, 2010
    Inventors: Yigang Zhao, Victor A. Snieckus
  • Patent number: 7638657
    Abstract: 3-[5?-(3,4-bis(hydroxymethyl)benzyloxy)-2?-ethyl-2-propylbiphenyl-4-yl]pentan-3-ol is prepared from the novel intermediate, 6-ethyl-4?-(1-ethyl-1-hydroxypropyl)-2?-propylbiphenyl-3-ol.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: December 29, 2009
    Assignee: Galderma Research & Development
    Inventors: Eric Terranova, Sebastien Daver, Christine Marty, Jean-Claude Pascal
  • Publication number: 20090186760
    Abstract: This invention provides 1,1-bis(4-hydroxyphenyl)-1-phenylethane having a crystal form characterized by an X-ray diffraction pattern having one sharp and strong peak at 16.4° and three sharp peaks of intermediate intensity at each of 13°-16° and 17°-20.8° and at least three peaks of intermediate intensity at 22°-23° as a diffraction angle (2?) in an X-ray diffractometry with Cu-K ?-rays, and being capable of giving the storing stability of a colored image and a non-colored portion against heat, water or the like and the low-energy color-developing property suitable for high-speed color development.
    Type: Application
    Filed: July 18, 2007
    Publication date: July 23, 2009
    Applicant: NIPPONKAYAKU KABUSHIKIKAISHA
    Inventors: Hiroaki Tsugawa, Soichi Uehori, Mituo Yoshifuji
  • Publication number: 20080318874
    Abstract: A cyclohexane derivative having the function of reducing a blood sugar level and having preferable properties required of medicines, such as long-lasting drug activity, metabolic stability, and safety; and a medicinal composition for use in the prevention or treatment of diseases attributable to hyperglycemia, such as diabetes, e.g., insulin dependent diabetes mellitus (type 1 diabetes) or noninsulin-dependent diabetes mellitus (type 2 diabetes), complications of diabetes, and obesity.
    Type: Application
    Filed: July 26, 2005
    Publication date: December 25, 2008
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Hiroharu Matsuoka, Tsutomu Sato, Masahiro Nishimoto, Nobuo Shimma
  • Publication number: 20080262011
    Abstract: The present invention relates to a compound of formula I, or a pharmaceutically acceptable salt thereof. Formula (I), wherein R1 and R2 are each independently H or alkyl; Y is an alkyl group. CONR3R4, COOR5SO2NR16R17, NHSO2R18 or CN; X is an aryl or heteroaryl group, each of which may be optionally substituted with one or more substituents selected from (CH2)mZ where Z is halogen, OH, CN, alkyl, alkoxy, NO2, CF3, CONR6R7, CN, NR8R9, COOR10 or NHCOR11 and m is 0 to 3; R3 to R11 are each independently H, alkyl or aryl, wherein said alkyl and aryl groups are optionally substituted by one or more substituents selected from halogen, OH, CN, alkyl, alkoxy, NO2, CF3, CONR12R13, CN, NH2, COOR14, NHCOR15, and CN; R12 to R18 are each independently H or alkyl, more preferably H or Me; n is 1 to 6; wherein the compound is other than 3?,5?-dimethyl-4-(1,1-dimethylheptyl)-1,1?-biphenyl-2-ol.
    Type: Application
    Filed: December 21, 2005
    Publication date: October 23, 2008
    Inventors: David Selwood, Cristina Visintin, David Baker, Gareth Pryce, Masahiro Okuyama
  • Publication number: 20080213187
    Abstract: The invention relates to novel cascade polymer complexes, to compositions comprising these compounds, to the use of the complexes in NMR diagnosis, and to processes for preparing these compounds and compositions.
    Type: Application
    Filed: January 17, 2008
    Publication date: September 4, 2008
    Inventors: Heribert SCHMITT-WILLICH, Heiko Schirmer, Bernd Misselwitz, Hanns-Joachim Weinmann, Peter Caravan
  • Patent number: 6753451
    Abstract: There is described the preparation of phenylphenol compounds of formula (1) by reaction of a keto compound of formula (3) with dioxolane of formula (4) and with an ammonium compound of formula (5) to from &bgr;-aminoketone compound of formula (6) (reaction step (I)), reaction of the compound of formula (6) with a compound of formula (7) to form a compound of formula (2) (reaction step (II)), and subsequent alkylation to form a compound of formula (1) (reaction step (III)) in accordance with scheme (A); wherein R1, R2, R3, R6 and R7 are each independently of the others hydrogen or C1-C8alkyl; R4, R5 and R8 are each independently of the others hydrogen or C1-C5alkyl; ant Hal is a halogen atom. The compounds prepared in accordance with the invention are suitable as antimicrobial active substances.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: June 22, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Klaus Nussbaum, Martina Hoffmann
  • Patent number: 6391925
    Abstract: A liquid composition of phenolic compounds can be formed in the substantial absence of a solvent and a surfactant. This composition includes at least one substituted phenol and a halo-substituted phenol. In one embodiment, the composition includes benzylchlorophenol and at least one of phenylphenol and tert-pentylphenol. In another embodiment, the composition includes benzylchlorophenol, phenylphenol, and tert-pentylphenol. The composition may be useful for preparing an antimicrobial material. A liquid phenolic composition can be prepared by forming a composition having at least one substituted phenol and a halo-substituted phenol in the substantial absence of a solvent and surfactant and mixing the composition until a liquid phenolic composition is formed.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: May 21, 2002
    Assignee: Ecolab Inc.
    Inventor: Kim R. Smith
  • Patent number: 5969147
    Abstract: New pesticidal substituted biphenyloxazolines of the formula (I) in whichA, B, X, m and n have the meanings stated in the description, and new intermediates therefor.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: October 19, 1999
    Assignees: Bayer Aktiengesellschaft, Yashima Chemical Industry Co., Ltd
    Inventors: Reinhard Lantzsch, Albrecht Marhold, Wolfgang Kramer, Christoph Erdelen, Ulrike Wachendorff-Neumann, Andreas Turberg, Norbert Mencke
  • Patent number: 5847234
    Abstract: 4-Hydroxybiphenyl is obtained in non-thixotropic form if a reaction mixture which is obtained by alkaline hydrolysis of biphenyl-4-sulfonic acid and contains 4-hydroxybiphenyl is heated at elevated pressure at above 115.degree. C. and at a pH from 0 to below 6.5.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: December 8, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Horst Behre, Helmut Fiege, Gunter Rauchschwalbe
  • Patent number: 5304689
    Abstract: Para-cumylphenol is continuously produced by the reaction of purified phenol and alpha-methylatyrene in the presence of an acidic catalyst and an effective amount of hypophosphorous acid (H.sub.3 PO.sub.2) for stabilizing the color and UV absorption.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: April 19, 1994
    Assignee: General Electric Company
    Inventor: Gaylord M. Kissinger
  • Patent number: 5248840
    Abstract: To prepare hydroxydiphenyls, a compound or a mixture of several compounds consisting of completely or partly hydrogenated hydroxydiphenyl is dehydrogenated catalytically in the gas phase, a catalyst being employed which comprises, as the active constituents, a combination of rhodium and one or more other platinum metal(s) from the group comprising platinum, palladium, ruthenium and iridium, and which comprises, as promoters, one or more alkali metal hydroxides and/or alkali metal sulphates, the support of which comprises chromium and manganese.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: September 28, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Otto Immel, Gerhard Darsow, Udo Birkenstock
  • Patent number: 5245086
    Abstract: The phenols/phenol ethers are hydroxylated by reaction with hydrogen peroxide, in the presence of a catalytically effective amount of (a) at least one alkali metal or alkaline earth metal salt of a protonic acid having a pKa in water of less than -0.1 and (b) a free protonic acid.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: September 14, 1993
    Assignee: Rhone-Poulenc Chimie
    Inventors: Michel Costantini, Dominique Laucher
  • Patent number: 5235116
    Abstract: Provided is an improved process for preparing 2-(1-phenylethyl)hydroquinone and its diacetate salt. In this process, the differential solubility of product and starting materials hydroquinone and styrene in non-polar organic solvents is utilized to provide mono-alkylated materials which can be easily removed from the reaction mixture. A solid acid catalyst is also used which allows the isolation of product and recycle of unreacted starting materials to be accomplished on an industrial-scale continuous process.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: August 10, 1993
    Assignee: Eastman Kodak Company
    Inventor: Dewey W. Fuller, Jr.
  • Patent number: 5210330
    Abstract: Disclosed is an improved process for the preparation of phenylhydroquinone wherein hydroquinone is first alkylated with cyclohexene to produce cyclohexylhydroquinone which is then dehydrogenated to obtain phenylhydroquinone. The improvement comprises carrying out both the alkylation and dehydrogenation reactions in the presence of a solvent comprising diphenyl ether, biphenyl or a mixture thereof. The solvent possesses selective solubility for hydroquinone and cyclohexylhydroquinone which permits the separation of unreacted hydroquinone from the alkylation reaction product. The boiling point of the solvent also permits the dehydrogenation reaction to be performed at substantially atmospheric pressure.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: May 11, 1993
    Assignee: Eastman Kodak Company
    Inventors: Dewey W. Fuller, Jr, Bruce L. Gustafson, Bobby L. Bernard
  • Patent number: 5196605
    Abstract: In a process for the preparation of 4,4'-dihydroxybiphenyl of high purity 4,4'-dibromobiphenyl is hydrolized in the presence of a copper compound catalyst, the insoluble materials comprising the catalyst is filtered off from the product mixture, 4,4'-dihydroxybiphenyl is precipitated by adjusting the pH and crude 4,4'-dihydroxybiphenyl separated from the product mixture is fractionally distilled to obtain substantially pure 4,4'-dihydroxybiphenyl.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: March 23, 1993
    Assignee: Bromine Compounds, Ltd.
    Inventors: Jakob Oren, Hugo Kesselman, Joshua Hermolin
  • Patent number: 5185475
    Abstract: A method for preparing paracumylphenol in a highly selective manner which comprisesa. reacting alpha methylstyrene with a purity greater than about 99.5 wt. % with a molecular excess of phenol having a purity greater than about 99.95 wt. % in the contact presence of a solid organic cation exchange resin at a temperature of from about 40.degree. C. to about 100.degree. C. and obtaining a stream containing paracumylphenol, phenol and small quantitities of side reaction products comprising orthocumylphenol and alpha methylstyrene dimers,b. removing excess phenol and other unwanted materials which are lower boiling than paracumylphenol, thereby leaving a stream which is at least about 99 wt. % paracumylphenol.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: February 9, 1993
    Assignee: General Electric Company
    Inventor: Gaylord M. Kissinger
  • Patent number: 5177258
    Abstract: Biaryl derivatives are produced by coupling an aryl halide in an aqueous alkaline solution in the presence of a palladium catalyst, using formic hydrazide as the reducing agent.
    Type: Grant
    Filed: May 21, 1992
    Date of Patent: January 5, 1993
    Assignee: Bromine Compounds, Ltd.
    Inventors: Abram Becker, Ariel A. Ewenson, Bertha Croitoru
  • Patent number: 5159082
    Abstract: A process for producing an aromatic compound is disclosed, which comprises coupling an aromatic sulfinic acid or a salt thereof with an aromatic halogen compound having at least one halogen atom attached to the carbon atom of the aromatic nucleus thereof or a vinyl group-containing halogen compound having at least one halogen atom attached to the carbon atom of said vinyl group in the presence of a catalyst compound containing an element selected from platinum metals.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: October 27, 1992
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Keiichi Sato, Toru Okoshi
  • Patent number: 5149888
    Abstract: The phenols and phenol ethers, e.g., phenol itself, are effectively hydroxylated by reacting hydrogen peroxide therewith, in the presence of a catalytically effective amount of titanium dioxide.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: September 22, 1992
    Assignee: Rone-Poulenc Chimie
    Inventors: Michel Costantini, Eric Garcin, Michel Gubelmann, Jean-Michel Popa
  • Patent number: 5146025
    Abstract: A compound represented by the formula: ##STR1## and a compound represented by the formula: ##STR2## wherein R is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy, which is an intermediate for producing the above compound (1) are disclosed.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: September 8, 1992
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takeshi Koyama, Takefumi Abe
  • Patent number: 5105029
    Abstract: A lower alcohol, for example, ethyl alcohol, is recovered from a reaction mixture resulted from a reaction of catechol with a lower alcohol in such a manner that the reaction mixture is distilled and separated into a distilled light vapor fraction comprising non-reacted lower alcohol and water and a residual fraction comprising a reaction product and non-reacted catechol; the distilled light vapor fraction is further distilled and separated into a distilled vapor fraction comprising the lower alcohol in an increased concentration and a residual water fraction; the distilled vapor fraction is fed to a gas-separating membrane module which allows water vapor to selectively permeate therethrough, and separated into a non-permeated fraction which comprises the lower alcohol in a high concentration, which is left in the feed side of the membrane, and a permeated fraction which comprises water in a high concentration, which is returned from the delivery side of the membrane to the further distilling step, and the no
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: April 14, 1992
    Assignee: Ube Industries, Inc.
    Inventors: Kohei Ninomiya, Kanji Nakagawa, Yoichi Nishida
  • Patent number: 5093514
    Abstract: A process for dehydrating compounds of the formula ##STR1## where --R is --CH.dbd.CH.sub.2, --C.tbd.CH --C.tbd.N or ##STR2## in an aqueous solution thereof is disclosed. In the case where R is --CH.dbd.CH.sub.2 or --C.dbd.CH, the temperature is preferably at least 50.degree. C. and preferably 75.degree. to 100.degree. C. The base is at least 0.1N and preferably 1.0 to 8N. Preferred bases are NaOH, KOH and C.sub.5 OH. In the case where --R is C.tbd.N, the temperature preferably is 20.degree. to 50.degree. C.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: March 3, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Alan D. Grund, Ronald J. Huss, Michael H. Reimer
  • Patent number: 5059345
    Abstract: An optically active compound represented by the general formula (I) of:R--Z--COO--(Ph).sub.k --Ph(Y)--CO--(CH.sub.2).sub.m C*HE L (1)In the general formula (I); R is an alkyl or alkoxy group having 4 to 22 carbon atoms; Z is the one selected from the group consisting of --Ph--, --Ph(X)--, --Ph--Ph--, Ph(X)--Ph--, --Ph--cy--, --Ph(X)--cy-- and --py--Ph-- is a 1,4-substituted phenylene group; --Ph--Ph-- is a 4,4'-substituted diphenylene group; --cy-- is a trans-1,4-cyclohexane group, --py is 2,5-substituted pyrimide group; X is a halogen atom at the ortho-position to R; k is zero or 1, Y is the one selected from the group consisting of H, OH, halogen atoms and methyl group; C* is an asymmetric carbon atom; E is the one selected from the group consisting of methyl group, halogen atoms and CF.sub.3 ; L is an alkyl, aryl or aralkyl group having not more than 10 carbon atoms; and m is an integer of zero to 6 where m takes zero when Y is H and Z is --Ph-- or --Ph--Ph--.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: October 22, 1991
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Shogo Kobayashi, Shigeki Ishibashi, Toshio Horie, Shinji Tsuru, Kouzaburou Nakamura, Tohru Maruno
  • Patent number: 5041692
    Abstract: A process for alkylation of phenols comprising letting a phenol react with a vinyl-aromatic hydrocarbon substituted in the vinyl group, in the presence of an organic solvent and of an acid catalyst in an aqueous solution, and of a polymerization inhibitor.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: August 20, 1991
    Assignee: Himont Italia S.r.l.
    Inventors: Raffaele Ungarelli, Maurizio A. Beretta
  • Patent number: 4960957
    Abstract: A process for the preparation of phenylhydroquinone by the reaction of a mixture of a benzenediazonium salt, hydroquinone and water while maintaining the pH in the range of about 3 to about 9.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: October 2, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Paul W. Wojtkowski
  • Patent number: 4871470
    Abstract: Cyclohexane derivatives of formula I ##STR1## wherein R is an alkyl group which has 1-12 C atoms and in which one or two non-adjacent CH.sub.2 groups can also be replaced by O, --CO--O-- or --OCO--,A.sup.1 and A.sup.2 each independently of one another are trans-1,4-cyclohexylene or unsubstituted or fluorine-substituted 1,4-phenylene, and one of the groups A.sup.1 and A.sup.2 can also be a single bond,X is --CN, halogen, OH, --COOR.sup.1, --OOCR.sup.1, --COR.sup.1, --OR.sup.1 or R.sup.1 andR.sup.1 is an alkyl group which has 1-12 C atoms and in which one or two CH.sub.2 groups can also be replaced by O, but excluding direct links between two O atoms,with the proviso that, in the case of X=CN, A.sup.2 is trans-1,4-cyclohexylene or fluorine-substituted, 1,4-phenylene, are suitable as components of liquid-crystalline phases.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: October 3, 1989
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Andreas Wachtler, Joachim Krause, Rudolf Eidenschink, Georg Weber
  • Patent number: 4798911
    Abstract: A method for selective dehydrogenation of a compound, comprising contacting a compound of the formula ##STR1## wherein each R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is independently selected from the group consisting of H, (C.sub.1 -C.sub.20) alkyl, (C.sub.3 -C.sub.20) cycloalkyl, (C.sub.6 -C.sub.20) aryl, (C.sub.7 -C.sub.20) alkylaryl, (C.sub.7 -C.sub.20) aralkyl groups, as well as substituted (C.sub.1 -C.sub.20) alkyl, (C.sub.3 -C.sub.20) cycloalkyl, (C.sub.6 -C.sub.20) aryl, (C.sub.7 -C.sub.20) aralkyl and (C.sub.7 -C.sub.20) arylalkyl moieties, optionally further substituted with --OR, wherein R is R.sup.1, R.sup.2, R.sup.3 or R.sup.4 ; and wherein R.sup.1 and R.sup.2 or R.sup.3 and R.sup.4 may be joined as part of a ring structure, at a dehydrogenation temperature in the presence of a catalyst comprising about 0.01 wt %-19.9 wt % Pd and about 0.01 wt %-19.9 wt % Cu on a carbon support, wherein the total amount of (Pd+Cu) on the support is about 0.
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: January 17, 1989
    Assignee: Eastman Kodak Company
    Inventors: Carl M. Lentz, Bruce L. Gustafson, Paul S. Wehner
  • Patent number: 4729977
    Abstract: A supported catalyst containing rhodium and compounds of chromium, manganese, alkali metals and, if appropriate, compounds of sulphur is prepared by first applying compounds of chromium and manganese to the catalyst support, subsequently heating the catalyst support thus charged to elevated temperatures and then impregnating it with a rhodium solution, drying it, treating it with an alkali metal solution and, if appropriate, applying sulphur compounds to the catalyst support thus treated. The supported catalyst thus prepared can be used for the dehydrogenation of compounds and/or compound mixtures consisting of completely and/or partly hydrogenated hydroxydiphenyl.
    Type: Grant
    Filed: June 11, 1986
    Date of Patent: March 8, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Otto Immel, Oskar Weissel, Hans-Helmut Schwarz
  • Patent number: 4670581
    Abstract: New biphenyl compounds and a process for producing them are provided. These new compounds have an acyloxy group in the 2- or 4-position of the biphenyl and an acyl hydroxyalkyl, hydroxyalkenyl or vinyl group in the 4'-position of the biphenyl or, alternatively a hydroxyl group in the 2- or 4-position of the biphenyl and an acyl, hydroxyalkyl, hydroxyalkenyl or vinyl group in the 4'-position of the biphenyl. These compounds can be produced easily from 2- or 4-acyloxybiphenyl compounds.
    Type: Grant
    Filed: January 10, 1984
    Date of Patent: June 2, 1987
    Assignee: Sugai Chemical Industry Co., Ltd.
    Inventor: Teiichi Tanigaki
  • Patent number: 4590301
    Abstract: Compounds of the general formula ##STR1## wherein n, R.sub.1, R.sub.2 and X are defined herein, are effective inhibitors of polymerization of vinylic monomers, particularly acrylic monomers. The inhibitors are easily, efficiently, and thoroughly removed from solution with the monomer by contact with charcoal.
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: May 20, 1986
    Assignee: Barnes-Hind, Inc.
    Inventors: Drahoslav Lim, Peter C. Morris
  • Patent number: 4551562
    Abstract: The nuclear hydroxylation of phenol with organic solutions of hydrogen peroxide in the presence of a catalyst is carried out in improved manner by employing both (1) a special, practically water free solution of hydrogen peroxide in an organic solvent which does not form an azeotrope with water or whose highest azeotrope with water, boil near or above the boiling point of hydrogen peroxide, and (2) employing as a catalyst XO.sub.2 where X is sulfur, selenium, or tellurium. Besides increasing the yield and the ability to carry out the reaction in a simpler manner when selenium dioxide is employed as a catalyst, there can also be controlled the ortho-para ratio, respectively, the ortho-ortho ratio of the product.
    Type: Grant
    Filed: March 13, 1984
    Date of Patent: November 5, 1985
    Assignee: Degussa Aktiengesellschaft
    Inventors: Karlheinz Drauz, Axel Kleemann
  • Patent number: 4537996
    Abstract: New hydroxybiphenyl compounds of the general formula: ##STR1## wherein R.sub.1 stands for a hydrogen atom or a hydroxyl group, R.sub.2 for a hydrogen atom or a hydroxyl group, R.sub.3 for a hydroxyl group, a group of the formula -CH.sub.2 -CH.dbd.CH.sub.2 or a group of the formula -CH.dbd.CH-CHO, R.sub.4 for a hydrogen atom or a group of the formula ##STR2## and R.sub.5 for a hydroxyl group or a group of the formula ##STR3## These compounds are obtained by extraction of "Tokoboku", i.e. dried cortex of Magnolia officinalis which belongs to the family Magnoliaceae. They are useful as pharmaceuticals or intermediates therefor, in particular as anti-allergics.
    Type: Grant
    Filed: September 22, 1983
    Date of Patent: August 27, 1985
    Assignee: Kabushiki Kaisha Tsumurajuntendo
    Inventors: Akihide Kooda, Itsuo Nishioka, Takeshi Nishiyori, Shoji Yahara
  • Patent number: RE46151
    Abstract: The present invention relates to a process for preparing 4,4?-[1-(trifluoromethyl)alkylidene]bis(2,6-diphenylphenols), in particular for preparing 4,4?-[1-(trifluoromethyl)ethylidene]bis(2,6-diphenylphenol), which comprises the self-condensation of cyclohexanone in the presence of a basic catalyst to form tricyclic condensation products, dehydrogenation of the resulting tricyclic condensation products in the presence of a supported transition metal catalyst in the condensed phase to form 2,6-diphenylphenol and reaction of the 2,6-diphenylphenol with a trifluoromethyl ketone. The invention further provides an improved process for preparing 2,6-diphenylphenol by aldol self-condensation of cyclohexanone.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: September 20, 2016
    Assignee: BASF SE
    Inventors: Gabriele Gralla, Gunnar Heydrich, Klaus Ebel, Wolfgang Krause