Carboxylic Halides (i.e., Compounds Having The -c(=o)-halo Group) Patents (Class 562/840)
  • Patent number: 8987500
    Abstract: The present invention relates to novel 4-biphenyl-substituted pyrazolidine-3,5-dione derivatives of the formula (I) in which A, D, G, W, X, Y and Z are as defined above, to a plurality of processes for the preparation and to their use as pesticides and/or herbicides and/or microbicides. Moreover, the invention relates to selective herbicidal compositions comprising both the 4-biphenyl-substituted pyrazolidine-3,5-dione derivatives of the formula (I) and a crop plant compatibility-improving compound.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: March 24, 2015
    Assignee: Bayer CropScience AG
    Inventors: Reiner Fischer, Thomas Bretschneider, Ernst Rudolf F. Gesing, Dieter Feucht, Karl-Heinz Kuck, Peter Lösel, Olga Malsam, Christian Arnold, Thomas Auler, Martin Jeffrey Hills, Heinz Kehne
  • Patent number: 8853393
    Abstract: The invention discloses a novel intermediate for preparing tapentadol and analogues thereof, wherein the structural formula is shown as formula I or II, and the groups are defined as the specification. The invention further discloses a method for preparing the novel intermediate and use of the intermediate for preparing tapentadol and analogues thereof. The invention can remarkably improve the product yield and quality of tapentadol, reduce the production cost, and simplify the production procedure. The preparation process is environment friendly, thus more suitable for the requirements of industrial production.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: October 7, 2014
    Assignee: Anhui New Star Pharmaceutical Development Co., Ltd.
    Inventors: Ziao Xu, Yuanhai Zhao, Degang Li, Xiaoxiang Li
  • Patent number: 8729302
    Abstract: A method of producing an acid halide, including: reacting a compound represented by the following Formula (III) with a basic compound and a compound represented by the following Formula (IV) to obtain a compound represented by the following Formula (II); and reacting the compound represented by Formula (II) with an acid halogenating agent to obtain a compound represented by the following Formula (I):
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: May 20, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Akiyoshi Goto
  • Patent number: 8716526
    Abstract: A production method of difluoroacetyl chloride according to the present invention includes a chlorination step of bringing a raw material containing at least either a 1-alkoxy-1,1,2,2-tetrafluoroethane or difluoroacetyl chloride into contact with calcium chloride at a reaction enabling temperature. A production method of 2,2-difluoroethyl alcohol according to the present invention includes a catalytic reduction step of causing catalytic reduction of the difluoroacetyl chloride obtained by the above production method. By these methods, the difluoroacetyl fluoride can be efficiently converted to the difluoroacetyl chloride and to the 2,2-difluoroethyl alcohol.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: May 6, 2014
    Assignee: Central Glass Company, Limited
    Inventors: Masamune Okamoto, Hideaki Imura, Naoto Takada
  • Publication number: 20130345462
    Abstract: The present invention provides a compound useful as a synthetic intermediate for an anti-HIV agent having an integrase inhibitory activity, a production method thereof, and a production method of an anti-HIV agent using the synthetic intermediate. Specifically, the present invention provides, for example, compounds represented by the formulas (6), (7-1), (7-2) and (8): wherein R is a fluorine atom or a methoxy group, R1 is a C1-C4 alkyl group, R2 is a hydroxyl-protecting group, and X2 is a halogen atom, a production method thereof, and a production method of an anti-HIV agent using the synthetic intermediate.
    Type: Application
    Filed: January 14, 2013
    Publication date: December 26, 2013
    Applicant: JAPAN TOBACCO INC.
    Inventor: JAPAN TOBACCO INC.
  • Publication number: 20130231478
    Abstract: The invention discloses a novel intermediate for preparing tapentadol and analogues thereof, wherein the structural formula is shown as formula I or II, and the groups are defined as the specification. The invention further discloses a method for preparing the novel intermediate and use of the intermediate for preparing tapentadol and analogues thereof. The invention can remarkably improve the product yield and quality of tapentadol, reduce the production cost, and simplify the production procedure. The preparation process is environment friendly, thus more suitable for the requirements of industrial production.
    Type: Application
    Filed: July 29, 2011
    Publication date: September 5, 2013
    Inventors: Ziao Xu, Yuanhai Zhao, Degang Li, Xiaoxiang Li
  • Patent number: 8450519
    Abstract: The invention relates to a process for preparing chiral octenoic acid derivatives, which constitute important intermediates in the preparation of medicament active ingredients, and also to novel intermediates which are used in the process for preparing the octenoic acid derivatives mentioned.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: May 28, 2013
    Assignee: Reuter Chemischer Apparatebau KG
    Inventors: Milan Soukup, Karl Reuter, Florian Stolz, Viktor Meier, Jofzsef Balint, Mark Kantor
  • Publication number: 20130018202
    Abstract: The present invention relates to novel 4-biphenyl-substituted pyrazolidine-3,5-dione derivatives of the formula (I) in which A, D, G, W, X, Y and Z are as defined above, to a plurality of processes for the preparation and to their use as pesticides and/or herbicides and/or microbicides. Moreover, the invention relates to selective herbicidal compositions comprising both the 4-biphenyl-substituted pyrazolidine-3,5-dione derivatives of the formula (I) and a crop plant compatibility-improving compound.
    Type: Application
    Filed: January 11, 2012
    Publication date: January 17, 2013
    Applicant: Bayer CropScience AG
    Inventors: Reiner Fischer, Thomas Bretschneider, Ernst Rudolf F. Gesing, Dieter Feucht, Karl-Heinz Kuck, Peter Lösel, Olga Malsam, Christian Arnold, Thomas Auler, Martin Jeffrey Hills, Heinz Kehne
  • Patent number: 8350082
    Abstract: This process for producing fluorine-containing compounds includes liquid-phase fluorination by introducing a raw material compound and fluorine gas into a solvent to replace hydrogen atoms in the raw material compound with fluorine atoms. More specifically, the process for producing fluorine-containing compounds includes (1) promoting fluorination by dissolving the raw material compound in anhydrous hydrofluoric acid and introducing into a liquid-phase fluorination solvent, or (2) promoting fluorination by dissolving the raw material compound in a perfluoro compound having a plurality of polar groups in a molecule thereof and introducing into a liquid-phase fluorination solvent. According to these processes, a fluorination reaction can be carried out at high yield and without containing hardly any isomers while using a hydrocarbon compound as is for the raw material.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: January 8, 2013
    Assignees: Mitsubishi Materials Corporation, Mitsubishi Materials Electronic Chemicals Co., Ltd.
    Inventors: Mitsuo Kurumaya, Tsunetoshi Honda, Kota Omori
  • Publication number: 20120289711
    Abstract: The present invention relates to a method for producing carbon nanomaterials and/or carbon micromaterials, in particular multi-wall carbon nanotubes. This method is characterized according to the invention in that the materials, in particular the side walls of the materials, undergo microwave-assisted functionalization. In addition, a correspondingly modified material is described.
    Type: Application
    Filed: October 25, 2010
    Publication date: November 15, 2012
    Applicant: FUTURECARBON GMBH
    Inventors: Jens Helbig, Christian Zenkel
  • Patent number: 8293948
    Abstract: A reagent for organic synthesis with which a chemical reaction can be conducted in a liquid phase and unnecessary compound(s) can be easily separated at low cost from the liquid phase after completion of the reaction. The reagent for organic synthesis reversibly changes from a liquid-phase state to a solid-phase state with changes in solution composition and/or solution temperature, and is for use in organic synthesis reactions. This reagent for organic syntheses facilitates process development. With the reagent, research on and development of, e.g., medicines through, e.g., compound library synthesis, etc. can be accelerated. It can hence contribute to technical innovations in the biochemical industry and chemical industry.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: October 23, 2012
    Assignee: Jitsubo Co., Ltd.
    Inventors: Kazuhiro Chiba, Shokaku Kim, Yusuke Kono
  • Patent number: 8217192
    Abstract: A problem as an object of the invention is to provide a production method of spilanthol in a large scale without using expensive reagents. The present invention provides a production method of N-isobutyl-2,6,8-decatrienamide, wherein a column chromatography purification step is not required in all processes.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: July 10, 2012
    Assignee: Takasago International Corporation
    Inventors: Shigeru Tanaka, Kenji Yagi, Hideo Ujihara, Kenya Ishida
  • Publication number: 20120065299
    Abstract: Composites comprising at least one graphite-carbon nanofiber (GCNF) and a polymer phase covalently linked to a surface thereof.
    Type: Application
    Filed: August 24, 2011
    Publication date: March 15, 2012
    Inventors: Charles M. Lukehart, Wei Hong Zhong, Jiang Li, Eric D. Mowles
  • Publication number: 20120053365
    Abstract: A method of producing an acid halide, including: reacting a compound represented by the following Formula (III) with a basic compound and a compound represented by the following Formula (IV) to obtain a compound represented by the following Formula (II); and reacting the compound represented by Formula (II) with an acid halogenating agent to obtain a compound represented by the following Formula (I):
    Type: Application
    Filed: July 29, 2011
    Publication date: March 1, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Akiyoshi GOTO
  • Publication number: 20110190520
    Abstract: The invention relates to a novel process for the preparation of certain cyclopropyl carboxylic acid esters and other cyclopropyl carboxylic acid derivatives; a novel process for the preparation of dimethylsulfoxonium methylide and dimethylsulfonium methylide; to the use of certain cyclopropyl carboxylic acid esters in a process for the preparation of intermediates that can be used in the synthesis of pharmaceutically active entities; and to certain intermediates provided by these processes.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 4, 2011
    Applicant: AstraZeneca AB
    Inventors: Adrian Clark, Elfyn Jones, Ulf Larsson, Anna Minidis
  • Publication number: 20110105773
    Abstract: A problem as an object of the invention is to provide a production method of spilanthol in a large scale without using expensive reagents. The present invention provides a production method of N-isobutyl-2,6,8-decatrienamide, wherein a column chromatography purification step is not required in all processes.
    Type: Application
    Filed: January 16, 2009
    Publication date: May 5, 2011
    Applicant: TAKASAGO INTERNATIONAL CORPORATION
    Inventors: Shigeru Tanaka, Kenji Yagi, Hideo Ujihara, Kenya Ishida
  • Publication number: 20100204271
    Abstract: Provision of a stabilized crystal of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (compound A). A crystal of compound A, which shows a particular X-ray powder diffraction pattern of a characteristic diffraction peaks at diffraction angles 2?(°) as measured by X-ray powder diffractometry.
    Type: Application
    Filed: August 10, 2009
    Publication date: August 12, 2010
    Inventors: MOTOHIDE SATOH, TAKAHISA MOTOMURA, TAKASHI MATSUDA, KENTARO KONDO, KOJI ANDO, KOJI MATSUDA, SHUJI MIYAKE, HIDETO UEHARA
  • Publication number: 20100174084
    Abstract: The invention relates to novel 2-alkoxy-6-alkylphenyl-substituted spirocyclic tetramic acid derivatives of the formula (I) in which A, B, D, G, X, Y and Z are as defined 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-alkoxy-6-alkylphenyl-substituted spirocyclic tetramic acid derivatives of the formula (I) and, secondly, at least one crop plant tolerance promoter compound.
    Type: Application
    Filed: March 16, 2010
    Publication date: July 8, 2010
    Applicant: Bayer CropScience AG
    Inventors: Reiner FISCHER, Stefan Lehr, Mark Wilhelm Drewes, Dieter Feucht, Olga Malsam, Guido Bojack, Christian Arnold, Thomas Auler, Martin Jeffrey Hills, Heinz Kehne, Chris Rosinger
  • Publication number: 20100105949
    Abstract: Radiolabelled acid chlorides may be synthesised by reacting a radiolabelled carboxylic acid with a solid-phase supported chlorinating agent.
    Type: Application
    Filed: January 4, 2010
    Publication date: April 29, 2010
    Inventors: DAVID ROBERT TURTON, Edward Robins
  • Patent number: 7642375
    Abstract: Radiolabelled acid chlorides may be synthesised by reacting a radiolabelled carboxylic acid with a solid-phase supported chlorinating agent.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: January 5, 2010
    Assignee: Hammersmith Imanet Limited
    Inventors: David Robert Turton, Edward Robins
  • Patent number: 7579379
    Abstract: The present invention provides a CETP activity inhibitor comprising as an active ingredient a compound represented by the formula (I): wherein R represents a straight chain or branched alkyl group; a straight chain or branched alkenyl group; a lower haloalkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted cycloalkenyl group; a substituted or unsubstituted cycloalkylalkyl group; a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, X1, X2, X3, and X4 may be the same or different and each represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower haloalkyl group; a lower alkoxy group; a cyano group; a nitro group; an acyl group; or an aryl group, Y represents —CO— or —SO2—, and Z represents a hydrogen atom or a mercapto-protecting group, or a prodrug compound, a pharmaceutically acceptable salt, or hydrate or solvate thereof.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: August 25, 2009
    Assignee: Japan Tobacco Inc.
    Inventors: Hisashi Shinkai, Kimiya Maeda, Hiroshi Okamoto
  • Patent number: 7523563
    Abstract: The present invention relates to a process for preparing a granular hydrohalide salt of a particular metal complex compound which is composed of a divalent metal cation as central ion and of an amino dicarboxylic acid ion and, where appropriate, water as ligand, where the hydrohalide salt is obtained with a specific particle size distribution.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: April 28, 2009
    Assignee: Verla-Pharm Arzneimittelfabrik Apotheker H.J.v. Ehrlich GmbH & Co. KG
    Inventor: Guenter Hopf
  • Publication number: 20090069184
    Abstract: What is described are 4-(4-trifluoromethyl-3-thiobenzoyl)pyrazoles of the general formula (I) and their use as herbicides. In this formula (I), R1, R2, R3 and R4 are radicals such as hydrogen and organic radicals, such as alkyl. Y is hydrogen or a protective group, such as tosyl.
    Type: Application
    Filed: April 10, 2008
    Publication date: March 12, 2009
    Applicant: Bayer CropScience AG
    Inventors: Hartmut Ahrens, Andreas van Almsick, Monika Schmitt, Jan Dittgen, Martin Hills, Heinz Kehne, Christopher Rosinger, Stefan Lehr, Dieter Feucht
  • Patent number: 7495130
    Abstract: A process for preparing mono- or poly-C1-C20-alkyl- and/or -halogen-substituted arylcarbonyl chlorides (I), by, in a first stage, reacting a mono- or poly-C1-C20-alkyl- and/or -halogen-substituted aromatic (II) with CCl4 in the presence of a Friedel-Crafts catalyst to give the corresponding mono- or poly-C1-C20-alkyl- and/or -halogen-substituted trichloromethylated aromatic (III), and, in a second stage, treating the trichloromethylated aromatic (III) with water or a protic acid in the presence of a catalyst to obtain the arylcarbonyl chloride (I). In a particularly preferred embodiment, the trichloromethylated aromatic (III) is not isolated as an intermediate and is used in the second stage dissolved in the solvent of the first stage.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: February 24, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Maase, Gerhard Bertlein, Holger Ganz, Matthias Dust
  • Patent number: 7423174
    Abstract: The present invention provides a process for selectively separating HF and like acids present along with water-unstable organic acid fluorides. In particular, the invention provides a process for separating an acid from a system in which the acid and an organic acid fluoride are present, the organic acid fluoride being represented by formula (I): RCOF??(I) wherein R is a fluorine atom; a C1-20 linear, branched or cyclic alkyl or halogenated alkyl group that may contain a heteroatom; or a C6-20 aryl or halogenated aryl group that may contain a heteroatom; the process comprising using as a deacidifying agent an aromatic heterocyclic compound having a boiling point of at least 50° C. and having one or more nitrogen atoms as heteroatom.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: September 9, 2008
    Assignee: Daikin Industries, Ltd.
    Inventors: Masaki Irie, Masahiro Kondou
  • Patent number: 7405331
    Abstract: The process for producing a (fluoroalkyl)benzene derivative according to the present invention comprises a step of reducing the total content of group 3 to group 12 transition metals in an alkylbenzene derivative to 500 ppm or less in terms of metal atoms; a step of halogenating the branched alkyl group of the purified alkylbenzene derivative by a photohalogenation to obtain a (haloalkyl)benzene derivative; and a step of subjecting the (haloalkyl)benzene derivative to a halogen-fluorine exchange using HF in an amount of 10 mol or higher per one mole of the (haloalkyl)benzene derivative. The (fluoroalkyl)benzene derivative produced by the process is reduced in the content of impurities such as residual halogens and residual metals, and is useful as intermediates for functional chemical products for use in applications such as medicines and electronic materials.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: July 29, 2008
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Toshio Hidaka, Norio Fushimi, Takafumi Yoshimura, Takeshi Kawai
  • Patent number: 7381420
    Abstract: This invention concerns novel labeling reactants suitable for labeling of a biospecific binding reactant using solid-phase synthesis. The novel reactants are derivatives of diethylenetriaminepentaacetic acid (DTPA), wherein a suitable group is linked to the DTPA molecule, thus allowing site specific introduction of the ligand of the derivatives to bioactive molecules on solid phase in an oligopeptide synthesizer.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: June 3, 2008
    Assignee: Wallac Oy
    Inventors: Jari Hovinen, Jari Peuralahti, Veli-Matti Mukkala
  • Patent number: 7375253
    Abstract: A process for the synthesis of (per)fluorinated mono-functional carbonyl compounds having the following formula (I): F-A-RF—B—C(O)X1??(I) wherein: X1=F, CF3; A, B equal to or different from each other, are independently (per)fluoroalkylene or (per)fluorooxyalkylene groups; RF is —ORf1O— wherein Rf1=perfluoroalkylene or —ORf2, wherein Rf2 is a perfluorooxyalkylene chain; said process comprising the following steps: A) obtainment of the formula (II) mono-hypofluorite: FO—CFX2-A-RF—B—C(O)X1??(II) by partial fluorination with elemental fluorine of the carbonyl groups of the formula (III) compound: X2(O)C-A-RF—B—C(O)X1??(III) in the presence of a formula MeFy catalyst, Me being an alkaline or alkaline-earth metal or Ag, y=1 or 2; B) thermal decomposition of the compound (II) to give the compounds according to the following scheme: FO—CFX2-A-RF—B—C(O)X1 (II) - - - ?F-A-RF—B—C(O)X1 (I)+(O)CFX2.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: May 20, 2008
    Assignee: Solvay Solexis S.p.A.
    Inventors: Giovanni Fontana, Walter Navarrini
  • Patent number: 7288676
    Abstract: The present invention relates to novel arylphenyl-substituted cyclic ketoenols of the formula (I) in which X represents halogen, alkyl, alkoxy, alkenyloxy, alkylthio, alkylsulphinyl, alkylsulphonyl, halogenoalkyl, halogenoalkoxy, halogenoalkenyloxy, nitro, cyano or in each case optionally substituted phenyl, phenoxy, phenylthio, phenylalkoxy or phenylalkylthio, Y represents in each case optionally substituted cycloalkyl, aryl or hetaryl, Z represents hydrogen, halogen, alkyl, alkoxy, alkenyloxy, halogenoalkyl, halogenoalkoxy, halogenoalkenyloxy, nitro or cyano, CKE represents one of the groups in which A, B, D, G and Q1 to Q6 are each as defined in the description, to a plurality of processes for their preparation and to their use as pesticides and herbicides.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: October 30, 2007
    Assignee: Bayer CropScience AG
    Inventors: Folker Lieb, Reiner Fischer, Alan Graff, Udo Schneider, Thomas Bretschneider, Christoph Erdelen, Wolfram Andersch, Mark-Wilhelm Drewes, Markus Dollinger, Ingo Wetcholowsky, Randy Allen Myers
  • Patent number: 7019166
    Abstract: The present invention relates to a novel process for preparing 2,4,5-trimethylphenyl-acetic acid by reacting pseudocumene with dichloroacetyl chloride in a Friedel-Crafts reaction to give 2,2-dichloro-1-(2,4,5-trimethylphenyl)ethanone, converting the 2,2-dichloro-1-(2,4,5-trimethylphenyl)ethanone to 2,4,5-trimethylmandelic acid using an alkali metal hydroxide and reducing the 2,4,5-trimethylmandelic acid to 2,4,5-tri-methylphenylacetic acid.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: March 28, 2006
    Assignee: Bayer CropScience AG
    Inventor: Thomas Himmler
  • Patent number: 6998506
    Abstract: A process for preparing acylfluorides by reaction of carbonyl fluoride COF2 with compounds having general formula: T=CR1R2??(I) wherein: T is O or CF2 R1 and R2, equal or different, are F or a R(O)t radical, wherein R=linear or branched C1–C7 (per)fluoroalkyl, optionally containing one or more oxygen atoms, t is an integer equal to zero or 1; wherein a catalyst supported on porous compound is used, the catalyst being selected from: CsF, RbF, KF, AgF, each optionally in admixture with one or more of the others.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: February 14, 2006
    Assignee: Solvay Solexis SpA
    Inventors: Marco Galimberti, Walter Navarrini
  • Patent number: 6949674
    Abstract: A novel aromatic carboxylic acid useful as a material for macromolecular compounds and, in particular, for polycondensed macromolecular compounds exhibiting excellent heat resistance, an acid halide derivative thereof and a process for producing these compounds are disclosed. The aromatic carboxylic acid and the acid halide derivative thereof have structures represented general formulae (1) and (2), respectively, and can be efficiently produced from a dialkyl ester derivative of isophthalic acid and an acetylene derivative in accordance with the disclosed process comprising specific steps. In the above formulae, A represents: —C?C—R1??(a) or (R1 represents hydrogen atom, an alkyl group or an aromatic group, R2 represents an alkyl group or an aromatic group) and X represents a halogen atom.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: September 27, 2005
    Assignee: Sumitomo Bakelite Company, Ltd.
    Inventors: Masako Okanuma, Yuichi Ishida, Yoko Hase, Nobuhiro Higashida, Takashi Enoki
  • Patent number: 6924396
    Abstract: The present invention describes immobilized haloenamine reagents, immobilized tertiary amides, methods for their preparation, and methods of use.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: August 2, 2005
    Assignee: Pharmacia Corporation
    Inventor: Dennis P. Phillion
  • Patent number: 6919480
    Abstract: The present invention provides novel processes for preparing a fluorinated acyl fluoride and a fluorinated vinyl ether.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: July 19, 2005
    Assignee: Asahi Glass Company, Limited
    Inventors: Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Daisuke Shirakawa, Shin Tatematsu
  • Patent number: 6916946
    Abstract: Disclosed is a novel acid halide derivative represented by Formula (I): wherein X and Y may be the same or different and are each a halogen atom; and R is a lower alkyl group. By cyclizing the acid halide derivative of Formula (I) in the presence of a catalyst, an indanonecarboxylic acid ester represented by Formula (VI): wherein X and R are as defined above, is produced. Such indanonecarboxylic acid esters are useful as intermediates for insecticides.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: July 12, 2005
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Satoru Nose, Kieko Sano, Syu-ichi Yamagiwa, Takeshi Hamatani
  • Patent number: 6911558
    Abstract: Describes a method for obtaining substantially pure chloromethyl chloroformate from a chloroformate mixture comprising chloromethyl chloroformate and methyl chloroformate by heating the chloroformate mixture in a reaction zone at temperatures ranging from at least 50° C. to the reflux temperature of the chloroformate mixture in the reaction zone while simultaneously removing volatile gaseous decomposition products from the reaction zone. Dichloromethyl chloroformate may also be present in the chloroformate mixture.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: June 28, 2005
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Mark P. Bowman, Charles B. Kreutzberger
  • Patent number: 6852884
    Abstract: A process for preparing acylfluorides by reaction of carbonyl fluoride COF2 with compounds having general formula: T=CR1R2??(I) wherein: T is O or CF2 R1 and R2, equal or different, are F or a R(O)t radical, wherein R=linear or branched C1-C7 (per)fluoroalkyl, optionally containing one or more oxygen atoms, t is an integer equal to zero or 1; wherein a catalyst supported on porous compound is used, the catalyst being selected from: CsF, RbF, KF, AgF, each optionally in admixture with one or more of the others.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: February 8, 2005
    Assignee: Solvay Solexis S.p.A.
    Inventors: Marco Galimberti, Walter Navarrini
  • Patent number: 6822114
    Abstract: Roflumilast and new key intermediates therefor are prepared by processes involving use of carbonylation technology. Good overall yields can be achieved using available starting materials. The starting material for the process can be catechol, an o-R1-phenol, an o-R1-p-X-phenol, or a 1-X-3-R1-4-R2-benzene, where R1, is a C1-6 alkoxy, C3-7 cycloalkoxy, C3-7 cycloalkylmethoxy, or benzyloxy group, or a C1-4 alkoxy group which is completely or partially substituted by fluorine; R2 is a C1-4 alkoxy group which is completely or partially substituted by fluorine; and X is Cl, Br, or I.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: November 23, 2004
    Assignee: Albemarle Corporation
    Inventors: Eric L. Williams, Tse-Chong Wu
  • Patent number: 6747174
    Abstract: The present invention provides novel processes for preparing a fluorinated acyl fluoride and a fluorinated vinyl ether.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: June 8, 2004
    Assignee: Asahi Glass Company, Limited
    Inventors: Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Daisuke Shirakawa, Shin Tatematsu
  • Publication number: 20040068139
    Abstract: A novel aromatic carboxylic acid useful as a material for macromolecular compounds and, in particular, for polycondensed macromolecular compounds exhibiting excellent heat resistance, an acid halide derivative thereof and a process for producing these compounds are disclosed. The aromatic carboxylic acid and the acid halide derivative thereof have structures represented general formulae (1) and (2), respectively, and can be efficiently produced from a dialkyl ester derivative of isophthalic acid and an acetylene derivative in accordance with the disclosed process comprising specific steps.
    Type: Application
    Filed: October 6, 2003
    Publication date: April 8, 2004
    Inventors: Masako Okanuma, Yuichi Ishida, Yoko Hase, Nobuhiro Higashida, Takashi Enoki
  • Publication number: 20040030187
    Abstract: The present invention is a user- and eco-friendly hypervalent iodine reagent (mIBX) capable of selectively oxidizing allylic and benzylic alcohols in water and other eco-friendly solvents and having generally the following structure: 1
    Type: Application
    Filed: July 31, 2003
    Publication date: February 12, 2004
    Inventors: Thottumkara K. Vinod, Arun P. Thottumkara
  • Publication number: 20040024249
    Abstract: Hydrofluoroethers of formula:
    Type: Application
    Filed: July 31, 2003
    Publication date: February 5, 2004
    Applicant: SOLVAY SOLEXIS S.p.A.
    Inventors: Rosaldo Picozzi, Antonella Di Meo, Claudio Tonelli
  • Patent number: 6677487
    Abstract: The present invention describes immobilized haloenamine reagents, immobilized tertiary amides, methods for their preparation, and methods of use.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: January 13, 2004
    Assignee: Pharmacia Corporation
    Inventor: Dennis P. Phillion
  • Patent number: 6605743
    Abstract: The invention relates to a continuous process for the preparation of pivaloyl chloride and of aroyl chloride, in particular of benzoyl chloride, which consists in reacting pivalic acid with a trichloromethylated aromatic compound in the presence of a catalyst at a temperature of between 60° C. and 180° C. under reduced pressure. The products formed are continuously removed from the reaction region, the hydrogen chloride formed being treated in a washing region in which a trichloromethylated compound moves countercurrentwise.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: August 12, 2003
    Assignee: Elf Atochem S.A.
    Inventors: Christophe Ruppin, Philippe Corbiere
  • Patent number: 6469196
    Abstract: The present invention relates to new compounds of the formula (I) in which X represents alkyl, Y represents halogen or alkyl and Z represents halogen or alkyl, with the proviso that one of the radicals Y and Z always represents halogen and the other alkyl, Het represents one of the groups  in which A, B, D and G have the meanings given in the description, a plurality of processes for their preparation and their use as pesticides and herbicides.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: October 22, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reiner Fischer, Thomas Bretschneider, Hermann Hagemann, Folker Lieb, Michael Ruther, Arno Widdig, Peter Dahmen, Markus Dollinger, Christoph Erdelen, Hans-Joachim Santel, Ulrike Wachendorff-Neumann, Alan Graff, Wolfram Andersch
  • Patent number: 6420601
    Abstract: 3,5-Bis(trifluoromethyl)benzoyl chlorides optionally substituted with fluorine or chlorine are advantageously prepared by converting 3,5-dimethylbenzoic acids optionally substituted with fluorine or chlorine into the corresponding acid chlorides; completely free-radically chlorinating said chlorides in the side chains, giving 3,5-bis(trichloromethyl)benzoyl chlorides optionally substituted by fluorine or chlorine; fluorinating the latter with anhydrous hydrogen fluoride and/or antimony pentafluoride, giving 3,5-bis(trifluoromethyl)benzoyl fluorides optionally substituted with fluorine or chlorine; and then reacting the 3,5-bis(trifluoromethyl)benzoyl fluorides with silicon tetrachloride in the presence of a further Lewis acid. Some of the 3,5-bis(trihalogenomethyl) and 3,5-dimethylbenzoyl halides which arise as intermediates are novel compounds.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: July 16, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Albrecht Marhold, Jörn Stölting
  • Publication number: 20020038027
    Abstract: HIV protease inhibitors inhibit or block the biological activity of the HIV protease enzyme, causing the replication of the HIV virus to terminate. These compounds can be prepared by the novel methods of the present invention using the novel inventive compounds and intermediates.
    Type: Application
    Filed: June 26, 2001
    Publication date: March 28, 2002
    Inventors: Michael E. Deason, Kathleen R. Whitten
  • Patent number: 6329529
    Abstract: Disclosed are a fluorinating agent represented by the general formula (1): wherein R1 to R4 are a substituted or unsubstituted, saturated or unsaturated alkyl group or a substituted or unsubstituted aryl group, and can be the same or different; R1 and R2 or R3 and R4 can bond to form a ring including a nitrogen atom or a nitrogen atom and other hetero atoms; or R1 and R3 can bond to form a ring including a nitrogen atom or a nitrogen atom and other hetero atoms, for example: a preparation process of the fluorinating agent and a process for preparing fluorine compounds by reacting various compounds with the fluorinating agent. The invention has also disclosed that the fluorinating agent is very effective for fluorinating oxygen containing functional compounds.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: December 11, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroshi Sonoda, Kazunari Okada, Akira Takahashi, Kouki Fukumura, Hidetoshi Hayashi, Teruyuki Nagata, Yasuhiro Takano
  • Publication number: 20010014759
    Abstract: 3,5-Bis(trifluoromethyl)benzoyl chlorides optionally substituted with fluorine or chlorine are advantageously prepared by converting 3,5-dimethylbenzoic acids optionally substituted with fluorine or chlorine into the corresponding acid chlorides; completely free-radically chlorinating said chlorides in the side chains, giving 3,5-bis(trichloromethyl)benzoyl chlorides optionally substituted by fluorine or chlorine; fluorinating the latter with anhydrous hydrogen fluoride and/or antimony pentafluoride, giving 3,5-bis(trifluoromethyl)benzoyl fluorides optionally substituted with fluorine or chlorine; and then reacting the 3,5-bis(trifluoromethyl)benzoyl fluorides with silicon tetrachloride in the presence of a further Lewis acid. Some of the 3,5-bis(trihalogenomethyl) and 3,5-dimethylbenzoyl halides which arise as intermediates are novel compounds.
    Type: Application
    Filed: January 25, 2001
    Publication date: August 16, 2001
    Inventors: Albrecht Marhold, Jorn Stolting
  • Patent number: 6271417
    Abstract: Meta-bromination with suppression of para-bromination is achieved by forming a reaction mixture comprised of (i) bromine chloride, (ii) a bromination catalyst, and (iii) a benzoyl halide, and maintaining the temperature of the resultant reaction mixture at one or more temperatures above 0° C., but not greater than 30° C. The bromine chloride is preferably formed in situ, most preferably by sparging gaseous chlorine into a mixture of bromine, finely-divided iron, and benzoyl chloride.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: August 7, 2001
    Assignee: Albemarble Corporation
    Inventors: Gary D. Focht, W. Dirk Klobucar