Hetero Ring Containing Reactant Patents (Class 558/309)
  • Publication number: 20130041116
    Abstract: A thermosetting monomer comprising at least two of an aryl-cyanato group and at least two of a phosphorus group.
    Type: Application
    Filed: December 22, 2010
    Publication date: February 14, 2013
    Inventors: Michael J. Mullins, Robert E. Hefner, JR., Mark B. Wilson
  • Publication number: 20120130080
    Abstract: Disclosed is a method for preparing a compound of Formula 1 comprising contacting a compound of Formula 2 with a metal cyanide reagent, a copper(I) salt reagent, an iodide salt reagent and at least one compound of Formula 3 wherein R1 is NHR3 or OR4; R2 is CH3 or Cl; R3 is H, C1-C4 alkyl, cyclopropyl, cyclopropylcyclopropyl, cyclopropylmethyl or methylcyclopropyl; R4 is H or C1-C4 alkyl; X is Br or Cl; and R5, R6, R7, R8 and R9 are as defined in the disclosure. Also disclosed is a method for preparing a compound of Formula 4 wherein R12, R13, R14 and Z are as defined in the disclosure, using a compound of Formula 1 characterized by preparing the compound of Formula 1 by the method disclosed above or using a compound of Formula 1 prepared by the method disclosed above.
    Type: Application
    Filed: December 17, 2008
    Publication date: May 24, 2012
    Inventors: Donald J. Dumas, Albert Loren Casalnuovo
  • Publication number: 20090099358
    Abstract: The invention is a set of novel bisphospholane ligands that can be complexed with transition metals. These complexes are useful as catalysts in asymmetric reactions such as asymmetric hydrogenation.
    Type: Application
    Filed: April 18, 2007
    Publication date: April 16, 2009
    Inventors: Philip M. Jackson, Ian Campbell Lennon, Martin E. Fox
  • Patent number: 7262316
    Abstract: A novel process for industrially producing an aromatic nitrile compound represented by the following general formula (3): characterized in that one of an aromatic hydroxymethyl compound, an aromatic alkoxymethyl compound and an aromatic aldehyde compound, all represented by the following general formula (1): or a mixture thereof is reacted with an oxidized bromine compound represented by the general formula (2) MBrOm ??(2) in the presence of an acid catalyst and either ammonia or an ammonium sat.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: August 28, 2007
    Assignee: Ihara Chemical Industry Co., Ltd.
    Inventor: Kentaro Kawazoe
  • Patent number: 6906216
    Abstract: The present invention comprises the simultaneous ring opening and concomitant N-substitution of various N-tosyl aziridines with different aliphatic and aromatic nitriles in presence of catalytic amount of metal triflates to afford different N-substituted ?-amino nitriles in excellent yields and selectivities.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: June 14, 2005
    Assignee: Council of Scientific and Industrial Research
    Inventors: Boyapati Manoranjan Choudary, Jeyalakshmi Kulandaivelu, Pravin R. Likhar, Lakshmi Kantam Mannepalli, Sreedhar Bojja, Bhanuprakash Kotamarthi, Sitha Sanyasi
  • Patent number: 6875882
    Abstract: There is a significant demand for organic nitriles, based on their versatility in reactions. Compounds prepared from nitriles have properties including superoxide inhibition, ferrielectric liquid crystal dopant, antipicornaviral agents, anti-inflammatory agents, anti-asthma agents, and fibringoen antagonists. The present invention discloses a facile synthesis for 2,4-dihydroxybenzonitrile, and ethers and diethers thereof, from 2,4-dihydroxybenzoic acid. The present invention also discloses a method of preparing a class of iron chelating agents related to desferrithiocin, all of which contain a thiazoline ring. In this method, 2,4-dihydroxybenzonitrile is condensed with (S)-2-methylcysteine.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: April 5, 2005
    Assignee: Genzyme Corporation
    Inventors: Mukund S. Chorghade, Mukund K. Gurjar, Joseph Cherian
  • Patent number: 6664410
    Abstract: A nitrile compound is prepared by treating a solid supported amide to dehydrate it and cleave it from the support in one operation. The preparation involves acetylation of the amide compound in the presence of a base at a temperature of less than 100° C.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: December 16, 2003
    Assignee: Millennium Pharmaceuticals Limited
    Inventors: Ryszard Kobylecki, Neal David Hone, Lloyd James Payne
  • Patent number: 6562965
    Abstract: The present invention relates to processes for the production of &agr;-aryl-&bgr;-ketonitriles, which serve as synthetic intermediates in the preparation of a series of biologically important molecules such as corticotropin releasing factor (CRF) receptor antagonists.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: May 13, 2003
    Assignee: Bristol-Myers Squibb Pharma Company
    Inventors: Jiacheng Zhou, Lynette May Oh, Philip Ma
  • Patent number: 6433195
    Abstract: The present invention provides a production method of a 5-phthalancarbonitrile compound of the formula [VI] as well as production methods of a compound of the formula [V]
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: August 13, 2002
    Assignee: Sumika Fine Chemicals Co., Ltd.
    Inventors: Tetsuya Ikemoto, Masami Igi
  • Patent number: 6344568
    Abstract: This invention relates to a method for producing a partially oxidized organic compound, e.g., an unsaturated aldehyde/carboxylic acid having three or more carbon atoms, or an organic acid anhydride/nitrile compound having four or more carbon atoms. This method requires a catalyst prepared by treating a carrier in such a manner that water used in the treatment achieves specific resistance.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: February 5, 2002
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Masaaki Okuno, Hiromi Yunoki, Yasushi Kiyooka, Daisuke Nakamura, Michio Tanimoto, Tsukasa Takahashi
  • Patent number: 6284893
    Abstract: There is disclosed a process for producing a nitrile compounds by ammoxidation of a carbocyclic or heterocyclic compound having organic substituent(s) by reacting the compound with ammonia and an oxygen-containing gas, wherein unreacted ammonia is recovered from the reaction product gas and recycled to the reaction system.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: September 4, 2001
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takuji Shitara, Takashi Okawa, Shuji Ebata, Fumisada Kosuge
  • Patent number: 6107508
    Abstract: The present invention relates to processes for the production of .alpha.-aryl-.beta.-ketonitriles, which serve as synthetic intermediates in the preparation of a series of biologically important molecules such as corticotropin releasing factor (CRF) receptor antagonists.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: August 22, 2000
    Assignee: Dupont Pharmaceuticals Company
    Inventors: Jiacheng Zhou, Lynette May Oh, Philip Ma
  • Patent number: 5059709
    Abstract: A novel process for producing .alpha.-[(dialkylamino) substituted-methylene].beta.-oxo-(substituted) propanenitriles of the formula: ##STR1## where R, R.sub.1 and R .sub.2 are defined in the specification by reacting a substituted isoxazole with a diaklylamide dimethylacetal is provided.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: October 22, 1991
    Assignee: American Cyanamid Company
    Inventors: John P. Dusza, Robert F. Church
  • Patent number: 5011948
    Abstract: There is provided a novel and efficient stereoselective total synthesis of epipodophyllotoxin and related epipodophyllotoxin compounds of the general formula ##STR1## wherein R.sup.1 and R.sup.2 each are independently hydrogen or (lower)alkoxy, or R.sup.1 and R.sup.2, taken together, is methylenedioxy; R.sup.4 and R.sup.6 each are independently hydrogen or (lower)alkoxy; and R.sup.5 is hydrogen or a phenol-protecting group; or an acid addition salt thereof. The present invention also provides novel intermediates and processes for the preparation of said intermediates, which are then converted into known antineoplastic agents.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: April 30, 1991
    Assignee: Bristol-Myers Company
    Inventors: Dolatrai M. Vyas, Paul M. Skonezny