Benzene Ring Attached Indirectly To The -o-c(=o)o- Group By Nonionic Bonding Patents (Class 558/275)
  • Publication number: 20090280245
    Abstract: A printing or coating composition has a non-volatile liquid vehicle carrying a conductive polymer to be deposited on a substrate and is cleavable by heat or acidification without decomposition of said material, cleavage of said vehicle producing decomposition products that are more volatile than said vehicle and which can be evaporated to dry the composition. Suitably, that vehicle is a carbonic acid diester or a malonic acid diester, e.g. of the formula: wherein R2 is an organic substituent such that R2—OH is a volatile alcohol; R1 is an aliphatic or aromatic substituent of more than three carbon atoms such that is volatile; and R3 is C1-3 alkyl.
    Type: Application
    Filed: April 13, 2007
    Publication date: November 12, 2009
    Applicant: The Technical University of Denmark
    Inventors: Frederik Krebs, Mikkel Joergensen
  • Publication number: 20090198065
    Abstract: To provide a resist polymer comprising, as a structural unit, an acid-decomposable unit having a structure represented by formula (1) or (2) which exhibits a small line edge roughness and produces little defects in DUV excimer laser lithography or the like.
    Type: Application
    Filed: March 26, 2009
    Publication date: August 6, 2009
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Hikaru Momose, Atsushi Ootake, Tadashi Nakamura, Akifumi Ueda
  • Publication number: 20090137393
    Abstract: The invention relates to novel 2,4,6-trialkylphenyl-substituted cyclopentane-1,3-diones of the formula (I) in which X, Y, A, B, Q1, Q2 and G have the meanings given above, to a plurality of processes and intermediates for their preparation and to their use as pesticides and/or herbicides, and also to selective herbicidal compositions comprising, firstly, the 2,4,6-trialkylphenyl-substituted cyclopentane-1,3-diones of the formula (I) and, secondly, at least one crop plant compatibility-improving compound.
    Type: Application
    Filed: January 3, 2007
    Publication date: May 28, 2009
    Applicant: Bayer CropScience AG
    Inventors: Reiner Fischer, Stefan Lehr, Dieter Feucht, Ulrich Gorgens, Olga Malsam, Alfred Angermann, Guido Bojack, Alan Graff, Christian Arnold, Thomas Auler, Martin Jeffrey Hills, Hein Kehne, Christopher Hugh Rosinger, Jan Dittgen
  • Publication number: 20080319218
    Abstract: Provided are compounds and a process for preparing benzyl pentahydroxyhexylcarbamoylundecanoate (I) and uses thereof.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 25, 2008
    Inventors: Andreas Haubrich, Bernd Junker, Javier Manero, Theo Wollmann
  • Patent number: 7453007
    Abstract: A process for the production of a dialkyl carbonate and a diol, such as dimethyl carbonate and ethylene glycol, by reacting a feed containing a cyclic carbonate, a hydroxy alkyl carbonate and an aliphatic monohydric alcohol in the presence of a transesterification catalyst is described. In another aspect, a process is described which is particularly useful for producing unsymmetric dialkyl carbonates, such as ethyl methyl carbonate.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: November 18, 2008
    Assignee: Badger Licensing, LLC
    Inventors: J. Scott Buchanan, Zhaozhong Jiang, Jose Guadalupe Santiesteban, William A. Weber
  • Publication number: 20080242643
    Abstract: The invention encompasses novel compounds of Formula I, which are nitric oxide-releasing prodrugs of diaryl-2-(5H)-furanones useful in the treatment of cyclooxygenase-2 mediated diseases. Formula (I). The invention also encompasses certain pharmaceutical compositions and methods for treating cyclooxygenase-2 mediated diseases comprising the use of compounds of Formula 1. The above compounds may be used as a combination therapy with low-dose aspirin to treat chronic cyclooxygenase-2 mediated diseases or conditions while also reducing the risk of thrombotic cardiovascular events.
    Type: Application
    Filed: January 25, 2005
    Publication date: October 2, 2008
    Inventors: Claude Dufresne, Carl Berthelette, Lianhai Li, Daniel Guay, Michel Gallant, Patrick Lacombe, Renee Aspiotis, Zhaoyin Wang, Claudio F. Sturino
  • Publication number: 20080188557
    Abstract: The present invention includes compounds, pharmaceuticals and cosmetics having at least one (substituted phenyl)-propenal moiety. The compounds and compositions of the present invention are useful in the treatment or prevention of medical conditions including androgen associated conditions, androgen associated inflammation, acne, alopecia, hirsutism, a wound, prostate cancer, bladder cancer, liver cancer, breast cancer and Kennedy's disease.
    Type: Application
    Filed: January 8, 2008
    Publication date: August 7, 2008
    Inventors: Charles C.Y. Shih, Qian Shi, Hui-Kang Wang, Ching-Yuan Su
  • Publication number: 20080188556
    Abstract: The present invention discloses certain novel prodrugs of florfenicol and/or of florfenicol analogs, including prodrugs of salts pharmaceutically acceptable salts of florfenicol and its analogs, including nitrogen-containing esters of the secondary alcohol group of florfenicol and of its analogs, and pharmaceutically acceptable salts thereof, compositions containing them, and methods of administering them to subjects. In particular embodiments the prodrugs are sufficiently water-soluble to serve the functions needed of a water-soluble prodrug of florfenicol or of a water-soluble prodrug of a florfenicol analog. A certain subclass of the compounds also possesses the hydrolytic stability needed to maintain the prodrug in solution in the subject's system until appropriate conditions exist when the prodrug can hydrolyze, releasing florfenicol or the florfenicol analog in question.
    Type: Application
    Filed: December 11, 2007
    Publication date: August 7, 2008
    Inventors: Tomasz W. Glinka, Jason Z. Zhang
  • Publication number: 20080146640
    Abstract: The present invention discloses certain novel prodrugs of chloramphenicol or thiamphenicol, or of an analog of either, including prodrugs of pharmaceutically acceptable salts of chloramphenicol or thiamphenicol or of their analogs, including nitrogen-containing esters of both alcohol groups of such compounds. In certain embodiments these novel prodrugs are sufficiently water-soluble to serve the functions needed of a prodrug of chloramphenicol or thiamphenicol or of an analog of either. In one embodiment, a certain subclass of the compounds also possesses the hydrolytic stability needed to maintain the prodrug in solution in the subject's system until appropriate conditions exist when the prodrug can hydrolyze, releasing the active compound in question.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 19, 2008
    Inventor: Tomasz W. Glinka
  • Patent number: 7339070
    Abstract: A method for recovering a product mixture from a waste stream in a diaryl carbonate manufacturing process comprising reacting the waste stream with an alkyl alcohol to form a reaction mixture, and separating the product mixture from the reaction mixture.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: March 4, 2008
    Assignee: General Electric Company
    Inventors: Vutukuru Lakshmi Narasimha Murthy, Ignacio Vic Fernandez, Venugopal Boddapaty Venkata
  • Patent number: 7034015
    Abstract: The invention relates to a novel class of aminobenzophenones derivatives, to pharmaceutical preparations comprising said compounds, to dosage units of such preparations, to methods of treating patients comprising administering said compounds, and to the use of said compounds in the manufacture of pharmaceutical preparations.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: April 25, 2006
    Assignee: Leo Pharma A/S
    Inventors: Erik Rytter Ottosen, Anne Marie Horneman, Xifu Liang
  • Patent number: 6864285
    Abstract: The present invention relates to novel covalent derivatives of alkanolamides of monocarboxylic and dicarboxylic acids with aminoalcohols of general formula (I) which can usefully be used as agonists of the CB2 cannabinoid receptor and hence as drugs active in pathological conditions which can be controlled by stimulation and/or costimulation of this receptor
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: March 8, 2005
    Assignee: Innovet Italia S.r.l.
    Inventors: Cristina Comelli, Francesco Della Valle, Maria Federica Della Valle, Gabriele Marcolongo
  • Publication number: 20040175741
    Abstract: The present invention discloses novel and improved nucleosidic and nucleotidic compounds that are useful in the light-directed synthesis of oligonucleotides, as well as, methods and reagents for their preparation. These compounds are characterized by novel photolabile protective groups that are attached to either the 5′- or the 3′-hydroxyl group of a nucleoside moiety. The photolabile protective group is comprised of a 2-(2-nitrophenyl)-ethyoxycarbonyl skeleton with at least one substituent on the aromatic ring that is either an aryl, an aroyl, a heteroaryl or an alkoxycarbonyl group. The present invention includes the use of the aforementioned compounds in light-directed oligonucleotide synthesis, the respective assembly of nucleic acid microarrays and their application.
    Type: Application
    Filed: January 26, 2004
    Publication date: September 9, 2004
    Applicant: NIGU Chemie GmbH
    Inventors: Sigrid Buhler, Markus Ott, Wolfgang Pfleiderer
  • Publication number: 20040171860
    Abstract: Novel acylating agents useful for preparing activated nucleophiles such as terminally activated polymers are disclosed.
    Type: Application
    Filed: November 11, 2003
    Publication date: September 2, 2004
    Inventors: Hong Zhao, Richard B. Greenwald
  • Patent number: 6740768
    Abstract: Process for the preparation of symmetrical and asymmetrical carbonates of the general formula I by reaction of alcohols of the general formula II and alkyl or aryl halides of the general formula III, R—OH  II R′—HAL  III with carbon dioxide and caesium carbonate at room temperature in dipolar aprotic solvents.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: May 25, 2004
    Assignee: Goedecke GmbH
    Inventors: Hubert Barth, Klaus Steiner, Simon Schneider, Ulrich Bayer, Manfred Westermayer, Ulrike Wolfsperger
  • Publication number: 20040023203
    Abstract: Methods and compositions to activate a genetically designated target cell (or population of target cells) artificially, in vivo or in vitro, employ triggering of heterologous stimulus-gated ion channels to activate the cells. The stimulus-gated ion channels are suitably TRPV1, TRPM8 or P2X2. A stimulus which leads to opening or “gating” of the ion channel can be a physical stimulus or a chemical stimulus. Physical stimuli can be provided by heat, or mechanical force, while chemical stimuli can suitably be a ligand, such as capsaicin for TRPV1 or ATP for P2X2, or a “caged ligand,” for example a photolabile ligand derivative, in which case a physical signal in the form of light is used to provide the chemical signal. Selective activation of the cell may be used for various applications including neuronal and neuroendocrine mapping and drug screening.
    Type: Application
    Filed: June 2, 2003
    Publication date: February 5, 2004
    Inventors: Gero Miesenbock, Bosis Zemelman
  • Publication number: 20040023944
    Abstract: Histone deacetylase is a metallo-enzyme with zinc at the active site. Compounds having a zinc-binding moiety, for example, an alpha-chalcogenmethylcarbonyl group, such as an alpha-ketothio group, can inhibit histone deacetylase. Histone deacetylase inhibition can repress gene expression, including expression of genes related to tumor suppression. Accordingly, inhibition of histone deacetylase can provide an alternate route for treating cancer, hematological disorders, e.g., hemoglobinopathies, autosomal dominant disorders, e.g. spinal muscular atrophy and Huntington's disease, genetic related metabolic disorders, e.g., cystic fibrosis and adrenoleukodystrophy, or for stimulating hematopoietic cells ex vivo.
    Type: Application
    Filed: May 21, 2003
    Publication date: February 5, 2004
    Applicant: Beacon Laboratories, Inc.
    Inventors: Hsuan-Yin Lan-Hargest, Robert J. Kaufman
  • Patent number: 6683112
    Abstract: The present invention relates to novel prodrugs of gabapentin and to pharmaceutical formulations and sustained release formulations containing the prodrugs.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: January 27, 2004
    Assignee: Andrx Corporation
    Inventors: Chih-Ming Chen, Jane Chen
  • Publication number: 20030111107
    Abstract: Spiro compounds of the formula (I), 1
    Type: Application
    Filed: July 26, 2002
    Publication date: June 19, 2003
    Inventors: Josef Salbeck, Donald Lupo
  • Patent number: 6548445
    Abstract: In the process for preparing an aromatic carbonate from an aromatic hydroxy compound, CO and O2 in the presence of a quaternary salt and a base using a platinum metal catalyst and a cocatalyst, use is advantageously made of supported catalysts containing, in the reaction-ready state, (i) a platinum metal, a platinum metal halide or a platinum metal halide complex and (ii) a metal compound acting as cocatalyst from groups IB, IIB, IIIA, IIIB, IVA, IVB, VB, VIB, VIIB, the iron group (atomic numbers 26-28) or the rare earth metals (atomic numbers 58-71) of the Periodic Table of the Elements (Mendeleev), each in an amount of 0.01-15% by weight, calculated as metal and based on the total weight of the catalyst.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: April 15, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Josef Buysch, Carsten Hesse, Jörg-Dietrich Jentsch, Johann Rechner, Eberhard Zirngiebl
  • Publication number: 20030069307
    Abstract: The invention relates to the use of 2-(3,4-dihydroxyphenyl)ethyl-substituted carbonic acid derivatives as antioxidants or free-radical scavengers, in particular to the use for protecting human cells and tissues from the harmful, aging-accelerating effects of free-radicals and reactive oxygen compounds.
    Type: Application
    Filed: August 15, 2002
    Publication date: April 10, 2003
    Inventor: Jakob Peter Ley
  • Patent number: 6495522
    Abstract: The present invention is directed to novel substituted &agr;-hydroxy acid thereof, represented by the general Formula I: where R1-R5, X and Z are defined herein. The present invention also relates to the discovery that compounds having Formula I are potent inhibitors of caspases and apoptotic cell death. Therefore, the inhibitors of this invention can retard or block cell death in a variety of clinical conditions in which the loss of cells, tissues or entire organs occurs.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: December 17, 2002
    Assignee: Cytovia, Inc.
    Inventors: Yan Wang, Sui Xiong Cai, Eckard Weber, Gordon B. Mills, Douglas R. Green, Lufeng Guan
  • Patent number: 6469193
    Abstract: Efficient synthetic methods towards mixed aliphatic carbonates through the three component couplings of aliphatic alcohols, alkyl halides and carbon dioxide in the presence of cesium carbonate and tetrabutylammonium iode (TBAI). Due to their enhanced nucleophilicities, cesium alkoxides are smoothly incorporated into CO2, allowing for mild reaction conditions such as ambient temperatures and short reaction durations. Various primary and secondary substrates are compatible under the standard conditions, offering high yields, while chiral templates such as &agr;-hydroxy carbonyls are resistant to racemization.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: October 22, 2002
    Assignee: University of South Florida
    Inventor: Kyung Woon Jung
  • Patent number: 6465647
    Abstract: Compounds of the Formula 1, Formula 2, Formula 3 and Formula 4 wherein the symbols have the meaning assigned to them in the disclosure have retinoid-like biological activity.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: October 15, 2002
    Assignee: Allergan, Inc.
    Inventors: Richard L. Beard, Diana F. Colon, Roshantha A. Chandraratna
  • Patent number: 6420596
    Abstract: This invention provides a process for the selective esterfication of a tertiary alcohol(I) by an acid anhydride(II) to produce corresponding tertiary ester(III) and carboxylic acid(V), using a reusable solid catalyst(IV) comprising one or more halides of indium, gallium, zinc and iron. The process comprises: (i) contacting a mixture of (I) and (II) in the absence or presence of a non aqueous solvent with the fine particles of (IV) in a stirred batch reactor provided with a reflux water condenser at atmospheric pressure at the reaction conditions, such that the mole ratio of (II) to (I) is in the range from about 0.1 to about 10.0; the weight ratio of (IV) to (I+II) is in the range from about 0.005 to about 0.5; the reaction temperature is below about 80° C., and the reaction period is in the range from about 0.1 h to about 50 h; (ii) removing the solid catalyst(IV) from the reaction mixture by filtration; and (iii) reusing the separated solid catalyst for subsequent batch of the process.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: July 16, 2002
    Assignee: Council of Scientific and Industrial Research
    Inventors: Vasant Ramchandra Choudhary, Kshudiram Mantri, Suman Kumar Jana
  • Patent number: 6380418
    Abstract: A method and catalyst system for producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the method includes the step of contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system having an effective amount of a manganese source in the absence of a Group VIII B metal source. In various alternative embodiments, the carbonylation catalyst system can include at least one inorganic co-catalyst, as well as a halide composition and/or a base.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: April 30, 2002
    Assignee: General Electric Company
    Inventors: Ben Purushotam Patel, Grigorii Lev Soloveichik, Donald Wayne Whisenhunt, Jr., Kirill Vladimirovich Shalyaev
  • Patent number: 6350893
    Abstract: Dibenzyl carbonates are prepared by reacting a dialkyl carbonate with a benzyl alcohol in the presence of a basic catalyst and removing the highly volatile components and the catalyst from the reaction mixture. This process permits the preparation of benzyl carbonates in a simple manner, in good yields and without any particular technical safety arrangements.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: February 26, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Edwin Ritzer, Claus Dreisbach
  • Patent number: 6346638
    Abstract: A method for continuously producing a (A) dialkyl carbonate and a (B) diol, comprising continuously feeding a cyclic carbonate and an aliphatic monohydric alcohol to a continuous multi-stage distillation column to thereby effect a transesterification therebetween, thereby continuously producing a dialkyl carbonate and a diol, while continuously withdrawing a low boiling point mixture containing the produced dialkyl carbonate (A) in a gaseous form from an upper portion of the distillation column and continuously withdrawing a high boiling point mixture containing the produced diol (B) in a liquid form from a lower portion of the distillation column, wherein the transesterification is performed under conditions wherein: (a) the reaction pressure of the column bottom is 5×104 Pa or less; (b) the reaction temperature of the column bottom is in the range of from −20° C. to less than 60° C.; and (c) the distillation column has an F-factor in the range of from 0.2 to 5.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: February 12, 2002
    Assignee: Asahi Kasel Kabushiki Kaisha
    Inventors: Masahiro Tojo, Kazuhiro Oonishi
  • Patent number: 6342623
    Abstract: A method is provided for co-producing dialkyl carbonate and alkanediol by reacting alkylene carbonate with alkanol in the presence of an amorphous aluminosilicate catalyst containing alkali metal, alkaline earth metal, or a combination thereof.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: January 29, 2002
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Clarence D. Chang, Larry E. Hoglen, Zhaozhong Jiang, Rene B. LaPierre
  • Patent number: 6147240
    Abstract: The present invention relates to compounds of the general formula I ##STR1## wherein A is a group of the formula ##STR2## and Z is an O or S atom, to the further processing thereof to form novel sec-amidoalkylcarbonic acid derivatives and to those sec-amidoalkylcarbonic acid derivatives.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: November 14, 2000
    Assignee: Ugichem GmbH
    Inventors: Ivar Ugi, Holger Bock, Thomas Lindhorst
  • Patent number: 6147246
    Abstract: A process for alkoxylating an organic carbonate wherein an alkylene oxide is reacted with an organic carbonate such as a dialkyl carbonate in the presence of a catalytically effective amount of a calcium-containing catalyst to produce alkoxylated carbonates.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: November 14, 2000
    Assignee: Condea Vista Company
    Inventors: Upali Weerasooriya, K. Lee Matheson, Dewey L. Smith, Paul A. Filler, Elida G. Partain, Kelly D. Knouse, Janet L. Watson
  • Patent number: 6130346
    Abstract: A process for preparing an organic compound, comprising conducting an organic reaction in the presence of a phosphine oxide represented by formula (1); ##STR1## where R.sup.1 is the same or different and each represents a hydrogen or hydrocarbon group with 1 to 10 carbon atoms, and x is the amount of water as a molar ratio which is 0 to 5.0, exhibiting a high catalytic performance especially in an organic reaction involving an alkylene oxide.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: October 10, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Takaomi Hayashi, Isao Hara, Shinji Kiyono, Atsushi Shibahara, Katsuhiko Funaki, Tatsuhiro Urakami, Keisuke Takuma, Usaji Takaki
  • Patent number: 6028131
    Abstract: The invention relates to compounds of the formula I ##STR1## in which R is C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.8 cycloalkyl, C.sub.7 -C.sub.9 phenylalkyl, --CH.sub.2 --A--R.sub.2 or a group of the formula II, ##STR2## R.sub.1 is C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.8 cycloalkyl, C.sub.7 -C.sub.9 phenylalkyl or a group of the formula (II),R.sub.2 is C.sub.4 -C.sub.18 alkyl, --(CH.sub.2).sub.m --COOR.sub.5 or a group of the formula III, ##STR3## R.sub.3 is hydrogen, C.sub.5 -C.sub.8 cycloalkyl or C.sub.1 -C.sub.12 alkyl,R.sub.4 is C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.8 cycloalkyl, C.sub.7 -C.sub.9 phenylalkyl or a group of the formula II or IV, ##STR4## A is S or SO, E is a direct bond, --CH.sub.2 --, --CH.sub.2 --O-- or --CH.sub.2 --NH--,G is --O-- or --NR.sub.3 --,Y is C.sub.1 -C.sub.18 alkyl, cyclohexyl, phenyl or alpha- or beta-naphthyl,R.sub.5 is C.sub.1 -C.sub.18 alkyl, andm is 1 or 2,with the provisos thateither at least one of the radicals R and R.sub.
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: February 22, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hans-Rudolf Meier, Gerrit Knobloch
  • Patent number: 6001768
    Abstract: In the process for preparing an aromatic carbonate from an aromatic hydroxy compound, CO and O.sub.2 in the presence of a quaternary salt and a base, use is advantageously made of supported catalysts which, in the reaction-ready state, contain a platinum metal, a platinum metal compound or a complex containing a platinum metal compound on a support comprising a metal oxide whose metal can occur in a plurality of oxidation states.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: December 14, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Josef Buysch, Carsten Hesse, Jorg-Dietrich Jentsch, Johann Rechner, Eberhard Zirngiebl
  • Patent number: 5973182
    Abstract: A process for the preparation of optically active phenylcyclohexylglycolate esters is described. The process utilizes carboxylic acid activation to couple (R)- or (S)-cyclohexylphenylglycolic acid (CHPGA) with 4-N,N-diethylamino butynol or other propargyl alcohol derivatives. The preparation of the hydrochloride salt is also described. In addition, a resolution process employing tyrosine methyl ester enantiomers for preparing a single enantiomer of CHPGA from racemic CHPGA is disclosed.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: October 26, 1999
    Assignee: Sepracor Inc.
    Inventors: Roger P. Bakale, Jorge L. Lopez, Francis X. McConville, Charles P. Vandenbossche, Chris Hugh Senanayake
  • Patent number: 5973183
    Abstract: Addition of phosphine ligands can produce high yields of tetraphenoxymethane, TPM, and diphenylcarbonate, DPC, in short reaction times and improved reaction rates by a copper-induced condensation of phenol and carbon disulfide, CS.sub.2. Either aromatic or aliphatic substituted phosphine ligands can be employed. The copper(I) oxide utilization is significantly improved in reactions containing phosphine ligands, such that yields exceeding 100% tetraphenoxymethane are observed. Some of the sulfur-containing byproduct is transferred to the phosphine in the form of phosphine sulfide.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: October 26, 1999
    Assignee: General Electric Company
    Inventors: Deborah Ann Haitko, Marsha Mottel Grade, Kathryn Lynn Longley, Robert Edgar Colborn
  • Patent number: 5928393
    Abstract: A fuel additive which comprises a compound selected from a novel amine, oxygen-containing and nitrogen-containing compounds having selected structures. The inventive additive when blended with a gasoline serves to suppress sludge or deposits in fuel intake systems or combustion chambers for example of an automobile engine.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: July 27, 1999
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Noboru Ishida, Katsuhiko Haji, Masaki Nagao, Toru Yoshii
  • Patent number: 5847189
    Abstract: Disclosed is a method for continuously producing a dialkyl carbonate and a diol, comprising: (1) feeding a cyclic carbonate and an aliphatic monohydric alcohol to a continuous multi-stage distillation column, and effecting a transesterification in the presence of a catalyst in the multi-stage distillation column and/or at least one transesterification reactor which communicates fluid-tightly with the distillation column, while continuously withdrawing a low boiling point gaseous mixture containing the produced dialkyl carbonate from a upper portion of the distillation column and a high boiling point liquid mixture from a lower portion of the distillation column; and (2) continuously feeding water and the high boiling point mixture to a hydrolysis reactor, to thereby effect a continuous hydrolysis of the unreacted cyclic carbonate contained therein and produce a diol and carbon dioxide.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: December 8, 1998
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Masahiro Tojo, Shinsuke Fukuoka, Mamoru Kawamura
  • Patent number: 5831113
    Abstract: A process for producing a carbonic acid diester, which comprises carrying out a reaction in a vapor phase of an alcohol, carbon monoxide and oxygen in the presence of a catalyst in a fluidized-bed reactor so that an oxidative carbonylation of the alcohol occurs, thereby obtaining a carbonic acid diester, wherein a heat of reaction is removed by the latent heat of vaporization of the alcohol as a raw material. In the process, for example, either at least part of the alcohol may be directly fed in liquid phase into the fluidized bed or cooling pipes are disposed in the fluidized bed and at least part of the alcohol is introduced in liquid phase into the cooling pipes as a heat transfer medium so that the liquid alcohol is vaporized and fed into the fluidized-bed reactor. Carbon monoxide may be introduced together with the liquid alcohol into the cooling pipes.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: November 3, 1998
    Assignee: JGC Corporation
    Inventors: Hiroshi Umino, Kozo Imura, Takeshi Koyama
  • Patent number: 5780663
    Abstract: A process for producing a carbonic acid diester, a method of removing CO.sub.2 and an absorbent for CO.sub.2 and an apparatus therefor are provided and are capable of selective removing of CO.sub.2 by absorption from a CO-containing gas admixed with CO.sub.2 which is recovered from a reactor to thereby enable recycling CO to the reactor for use. The invention is characterized by (1) carrying out a reaction of an alcohol, carbon monoxide (CO) and oxygen in a reactor and withdrawing a gas (i) which contains CO and CO.sub.2 produced as a by-product of the reaction from the reactor; (2) contacting the withdrawn gas (i) with an alcohol solution so that at least part of the CO.sub.2 contained in the gas (i) is absorbed by the alcohol solution and removed from the gas (i), thereby obtaining a CO-containing gas (ii), and (3) recycling the CO-containing gas (ii) to the reactor. It is preferred that the gas (i) is subjected to vapor-liquid separation and a separated gas is contacted with the alcohol solution.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: July 14, 1998
    Assignee: JGC Corporation
    Inventors: Kenji Mori, Takeshi Koyama
  • Patent number: 5780585
    Abstract: A prodrug of the formula (I): ##STR1## where R.sup.1 is a group such that the compound R--NH.sub.2 represents actinomycin D, doxorubicin, mitomycin C, or a nitrogen mustard of the formula (IV): ##STR2## a prodrug of the formula (II): ##STR3## where R.sup.1 is a group such that the compound R.sup.2 OH is a phenolic nitrogen mustard; and processes whereby the prodrugs shown above are made in which a prodrug precursor compound is reacted with 4-nitrobenzyl chloroformate under anhydrous conditions.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 14, 1998
    Assignee: Cancer Research Campaign Technology Limited
    Inventors: Gillian Anlezark, Roger Melton, Roger Sherwood, Thomas Connors, Frank Friedlos, Michael Jarman, Richard Knox, Anthony Mauger, Caroline Joy Springer
  • Patent number: 5767303
    Abstract: A process for the production of a carbonic diester, wherein an alcohol is reacted in a reaction zone with carbon monoxide and oxygen in the presence of (a) metallic copper or a copper compound, (b) a heterocyclic compound containing one or more nitrogen atoms in the cyclic skeleton and (c) a glycol ether represented by the following formula (I):R.sup.1 O--(CHR.sup.2 --CH.sub.2 O).sub.n --R.sup.3 (I)wherein R.sup.1 stands for an alkyl group having from 1 to 6 carbon atoms, R.sup.2 stands for a hydrogen atom or an alkyl group having 1 or 2 carbon atoms, R.sup.3 stands for a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms and n is an integer of from 1 to 12.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: June 16, 1998
    Assignee: Chiyoda Corporation
    Inventors: Takeshi Minami, Noriyuki Yoneda, Yoshimi Shiroto, Haruto Kobayashi
  • Patent number: 5750758
    Abstract: This invention is a process for the preparation of a pyrocarbonic acid diester of formula (I) ##STR1## wherein R.sub.1 and R.sub.1 ' are each, independently of the other, an optionally substituted branched or straight-chain C.sub.1 -C.sub.24 alkyl, C.sub.3 -C.sub.24 alkenyl, C.sub.3 -C.sub.24 alkynyl, C.sub.4 -C.sub.12 cycloalkyl, C.sub.4 -C.sub.12 cycloalkenyl or C.sub.7 -C.sub.24 aralkyl,by reacting at least one ester carbonate of formula (II) ##STR2## with 40-50 mol % of a sulfochloride of formula (IV) ##STR3## in the presence of 0.8-5 mol % of a catalyst of formula (V) ##STR4## and with minor amounts of a heterocyclic aromatic amine in a nonpolar inert solvent,in which process the amount of heterocyclic aromatic amine is 1-3 mol % and the reaction is carried out in the temperature range from -10.degree. C. to +25.degree. C., all molar amounts being based on 100 mol % of ester carbonate of formula (II).
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: May 12, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: John Zambounis, Veronique Hall-Goulle
  • Patent number: 5725840
    Abstract: The present invention relates to metabolically labile esters, and to contrast media for X-ray and magnetic resonance imaging comprising these esters. The esters have formula (I): ##STR1## in which R.sup.3 is asteroid residue. The esters contain at least one iodine atom and/or heavy metal atom. The compound are metabolizable to products which are soluble in body fluids and are physiologically acceptable.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: March 10, 1998
    Assignee: Nycomed Imaging AS
    Inventors: Jo Klaveness, Frode Rise, John Varadarajan, Arne J.o slashed.rgen Aasen
  • Patent number: 5719182
    Abstract: Novel indane and indene derivatives are described which are endothelin receptor antagonists.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: February 17, 1998
    Assignee: SmithKline Beecham Corporation
    Inventors: Russell Donovan Cousins, John Duncan Elliott, Maria Amparo Lago, Jack Dale Leber, Catherine Elizabeth Peishoff
  • Patent number: 5656578
    Abstract: A monocarbonate represented by the formula (R.sup.1).sub.n Ph--O(R.sup.2 O).sub.m --CO--O--CH.sub.2 --C(R.sup.3)(R.sup.4)(R.sup.5), a lubricating oil containing this monocarbonate, and a process for preparing a composition of this monocarbonate, a monocarbonate to which are bonded, via carbonic acid, two (R.sup.5)(R.sup.4)(R.sup.3)C--CH.sub.2 -- groups and a monocarbonate to which are bonded, via carbonic acid, two (R.sup.1).sub.n Ph--(OR.sup.2).sub.m -- groups. The monocarbonate exhibits excellent lubricating property, cleaning property and electrically insulating property, exhibits excellent compatibility with hydrogenated fluorocarbons such as R-134a, and can be favorably used as a lubricating oil for refrigerators such as electric refrigerators and air conditioners for room.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: August 12, 1997
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Masahide Tanaka, Tetsuo Hayashi, Takashi Hayashi, Kinya Mizui, Kunihiko Takeuchi, Hajime Oyoshi
  • Patent number: 5650532
    Abstract: A novel acrylic monomer is produced by addition reacting a hydroxyalkyl (meth)acrylate or its lactone adduct with a cyclic alkylene carbonate, and then acylating the terminal hydroxyl group of the reaction product with a reactive derivative of a monobasic alkanoic acid or a dicarboxylic acid anhydride.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: July 22, 1997
    Assignees: Nippon Paint Company, Ltd., Daicel Chemical Industries, Ltd.
    Inventors: Takeharu Tabuchi, Takaaki Fujiwa, Shinji Nakano, Shin-ya Yamada
  • Patent number: 5591883
    Abstract: A process for preparing carbonate compounds having the following formula: ##STR1## wherein R and R' are, the same or different, C.sub.1 -C.sub.6 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group, an optionally substituted C.sub.6 -C.sub.14 aryl group, an alkylaryl group, or an arylalkyl group is proposed; the process comprises reacting urea or derivatives thereof with appropriate alcohols or phenols and preparing the carbonate compounds via a multiple-step synthesis process.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: January 7, 1997
    Assignee: Chang Chun Plastics Co. Ltd.
    Inventors: Kuen-Yuan Hwang, Yu Z. Chen, Chio C. Chu, Hsiao T. Liao
  • Patent number: 5565603
    Abstract: A process for making a dialkyl carbonate which comprises reacting urea with a first alcohol in a carbamate reactor at a temperature and pressure sufficient to convert said urea to an alkyl carbamate; and reacting the alkyl carbamate with a second alcohol in the presence of a dialkyl isocyanato alkoxy tin catalyst or derivatives in a carbonate reactor at a temperature and pressure sufficient to convert the alkyl carbamate to a dialkyl carbonate, wherein the molar ratio of alkyl carbamate to second alcohol is in the range between about 2:1 to about 10:1 and wherein dialkyl carbonate is present within the carbonate reactor in an amount between about 1 to about 3 weight %, based on total alkyl carbamate and second alcohol content, and wherein the second alcohol is either the same as or different from the first alcohol or a mixture of alcohols.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: October 15, 1996
    Inventors: Ramzi Y. Saleh, Robert C. Michaelson, Elena N. Suciu, Barbara Kuhlmann
  • Patent number: 5562851
    Abstract: This invention provides sulfur-containing carbonate reaction product additives which are useful as phosphorus-free antiwear additives in lubricating oils, particularly automatic transmission fluids.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: October 8, 1996
    Assignee: Exxon Chemical Patents Inc.
    Inventors: George W. Schriver, James S. Puckace