Processes Of Forming Carbon To Carbon Bond Between Carbons Of Two Organic Reactants Patents (Class 558/357)
  • Patent number: 11136289
    Abstract: Process for the preparation of a compound of Formula (I): the process comprising the reaction of a compound of Formula (II) with malononitrile in the presence of a base and a palladium catalyst, wherein X, Y and Z, independently of each other, represent fluoro, chloro or C1-4alkyl; and L is a leaving group; with the proviso that 1 or 2 of X and Y are, independently of each other, fluoro or chloro.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: October 5, 2021
    Assignee: SYNGENTA PARTICIPATIONS AG
    Inventors: Martin Zeller, Nicolas Fedou
  • Patent number: 10759742
    Abstract: Process for the preparation of a compound of Formula (I), the process comprising the reaction of a compound of Formula (II) with malononitrile in the presence of a base and a palladium catalyst, Formula (II) wherein X, Y and Z, independently of each other, represent fluoro, chloro or C1-4alkyl; and L is a leaving group; with the proviso that 1 or 2 of X and Y are, independently of each other, fluoro or chloro.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: September 1, 2020
    Assignee: Syngenta Participations AG
    Inventors: Martin Zeller, Nicolas Fedou
  • Patent number: 8889897
    Abstract: The present invention relates to a process for obtaining a compound of formula (1), (2) or (3) by means of a electrocarboxylation with CO2. The present invention also relates to the new intermediates (1) and (2). The present invention further relates to the use of intermediates (1) and (2) as starting materials for the synthesis of SPAN derivatives.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: November 18, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: J Oriol Osso, Lourdes F. Vega, Illuminado Gallardo, Gonzalo Guirado, Ana Belen Gomez, Francisca Irene Reche
  • Patent number: 8779122
    Abstract: Process for the synthesis of the compound of formula (I): Application in the synthesis of ivabradine, addition salts thereof with a pharmaceutically acceptable acid and hydrates thereof.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: July 15, 2014
    Assignee: Les Laboratoires Servier
    Inventors: Maria Del Pilar Carranza, Maria Isabel Garcia Aranda, José Lorenzo Gonzalez, Frédéric Sanchez
  • Publication number: 20140058125
    Abstract: There is provided novel fluoro-substituted compounds capable of modulating the G-protein-coupled receptor GPR40, compositions comprising the compounds, and methods for their use for controlling insulin levels in vivo and for the treatment of conditions such as type II diabetes, hypertension, ketoacidosis, obesity, glucose intolerance, and hypercholesterolemia and related disorders associated with abnormally high or low plasma lipoprotein, triglyceride or glucose levels.
    Type: Application
    Filed: April 3, 2012
    Publication date: February 27, 2014
    Applicant: SYDDANSK UNIVERSITET
    Inventors: Trond Ulven, Elisabeth Christiansen
  • Publication number: 20130316252
    Abstract: A method of preparing a tricyanoalkoxy alkane compound is disclosed. The tricyanoalkoxy alkane compound is prepared by reacting an alcohol compound including at least three hydroxyl groups and a nitrile compound in the presence of a potassium alkoxide catalyst. A non-aqueous electrolyte solution comprising the tricyanoalkoxy alkane compound and a lithium secondary battery also are disclosed. The swelling of the battery may be prevented.
    Type: Application
    Filed: July 10, 2013
    Publication date: November 28, 2013
    Inventors: Byoung Bae Lee, Jae Seung Oh, Yeon Suk Hong, Min Ah Kim
  • Publication number: 20130184485
    Abstract: What is described is a process for preparing organic compounds of the general formula (I) R—R???(I) by converting a corresponding compound of the general formula (II) R—X ??(II) in which X is fluorine, chlorine, bromine or iodine to an organomagnesium compound of the general formula (III) [M+]n[RmMgXkY1]??(III) wherein compounds of the formula (III) are reacted with a compound of the general formula (IV) characterized in that the reaction of (III) with (IV) is performed in the presence of a) catalytic amounts of an iron compound, based on the compound of the general formula (II), and optionally in the presence of b) a nitrogen-, oxygen- and/or phosphorus-containing additive in a catalytic or stoichiometric amount, based on the compound of the general formula (II).
    Type: Application
    Filed: February 1, 2011
    Publication date: July 18, 2013
    Applicant: SALTIGO GMBH
    Inventors: Matthias Gotta, Bernd Wilhelm Lehnemann, Waldemar Maximilian Czaplik, Matthias Mayer, Axel Jacobi Von Wangelin
  • Publication number: 20130165684
    Abstract: The present invention relates to a process for obtaining a compound of formula (1), (2) or (3) by means of a electrocarboxylation with CO2. The present invention also relates to the new intermediates (1) and (2). The present invention further relates to the use of intermediates (1) and (2) as starting materials for the synthesis of SPAN derivatives.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 27, 2013
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventor: Air Products and Chemicals, Inc.
  • Publication number: 20110046380
    Abstract: A method for producing an unsaturated organic compound represented by the formula (3): (Y1)m-1—R1—R2—(Y2)n-1??(3) wherein Y1 represents R2 or X1, and Y2 represents R1 or B(X2)2, which comprises reacting a compound represented by the formula (1): R1(X1)m??(1) wherein R1 represents an aromatic group or the like, X1 represents a leaving group and m represents 1 or 2, with a compound represented by the formula (2): R2{B(X2)2}n??(2) wherein R2 represents an aromatic group or the like, X2 represents a hydroxyl group or the like, and n represents 1 or 2, in the presence of (a) a nickel compound selected from a nickel carboxylate, nickel nitrate and a nickel halide, (b) a phosphine compound such as 1,4-bis(dicyclohexylphosphino) butane, (c) an amine selected from a primary amine and a diamine such as N,N,N?,N?-tetramethyl-1,2-ethanediamine, and (d) an inorganic base.
    Type: Application
    Filed: April 28, 2009
    Publication date: February 24, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Taku Asaumi, Takashi Kamikawa
  • Publication number: 20100297104
    Abstract: The present invention is in relation to a dendritic molecule having symmetrically sited branches having four or more generations of dendrimers wherein the branch points are tertiary amines linked together with oxygen atom of ether and the heteroatoms are separated by a substituted or non-substituted linear three methylene linker. In addition the invention also provides a process to prepare such dendritic macromolecules.
    Type: Application
    Filed: August 14, 2007
    Publication date: November 25, 2010
    Applicant: INDIAN INSTITUTE OF SCIENCE
    Inventors: Jayaraman Narayanaswamy, Jayamurugan Govindasamy
  • Publication number: 20100249443
    Abstract: The present invention relates to titanium catalysts for asymmetric synthesis reactions produced by bringing a reaction mixture obtained by contacting water and a titanium alkoxide into contact with an optically active ligand represented by the general formula (a), wherein R1, R2, R3, and R4 are independently a hydrogen atom, an alkyl group, or the like, and A* represents a group with two or more carbon atoms having an asymmetric carbon atom or axial asymmetry. The invention further relates to a process for asymmetric cyanation of imines, wherein the process comprises reacting an imine with a cyanating agent in the presence of the titanium catalyst.
    Type: Application
    Filed: September 26, 2008
    Publication date: September 30, 2010
    Applicant: Agency for Science, Technology and Research
    Inventors: Abdul Majeed Seayad, Balamurugan Ramalingam, Christina Chai, Takushi Nagata, Kazuhiko Yoshinaga
  • Patent number: 7786332
    Abstract: In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: August 31, 2010
    Assignee: Merck Patent GmbH
    Inventors: Detlef Pauluth, Peer Kirsch, Peter Baeuerle, Oliver Deeg
  • Patent number: 7476752
    Abstract: The present invention provides processes for the preparation of compounds of Formula I, which are useful in the preparation of pharmaceuticals for the treatment of inflammatory diseases. The compounds of Formula I are also useful as pharmaceuticals.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: January 13, 2009
    Assignee: Wyeth
    Inventors: Weiguo Liu, John L. Considine, Zhixian Ding, John Potoski
  • Patent number: 7411100
    Abstract: In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: August 12, 2008
    Assignee: Merck GmbH
    Inventors: Detlef Pauluth, Peer Kirsch, Peter Baeuerle, Oliver Deeg
  • Publication number: 20080108844
    Abstract: A process for producing a monomer comprising thermally cracking a pre-polymer in the presence of a stabiliser to form a monomer as a distillate , the stabiliser preventing the re-polymerisation of the monomer during cracking while not being carried over in the distillate in normally detectable amounts.
    Type: Application
    Filed: September 13, 2007
    Publication date: May 8, 2008
    Inventor: John Baggaley
  • Patent number: 7268247
    Abstract: Phenylmalonic acid dinitriles are prepared by reaction of, for example, phenyl Kalides with malonic acid dinitrile in the presence of palladium catalysts and bases.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: September 11, 2007
    Assignee: Syngenta Crop Protection, Inc.
    Inventor: Martin Zeller
  • Patent number: 7211705
    Abstract: Phase-selective soluble polymer supports for catalysts are described. The catalysts utilize polystyrene copolymers having enhanced solubility in nonpolar solvents. Other catalysts of the invention utilize polyisobutylene supports. Methods of catalyzing chemical reactions using latent biphasic solvents are also disclosed.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: May 1, 2007
    Assignee: The Texas A&M University System
    Inventors: David E. Bergbreiter, Chunmei Li, Jacqueline O. Besinaiz, Jun Li, Shayna D. Sung
  • Patent number: 7060859
    Abstract: The invention concerns the use of a solid basic catalyst comprising a hydrotalcite structure wherein part at least of the compensating anions are fluoride anions F? for producing Knoevenagel of Michael condensation reactions. The invention also concerns novel solid basic catalysts comprising a hydrotalcite structure characterized by a Mg/Al molar ratio ranging between 2.5 and 3.8 wherein at least part of the compensating anions are fluoride anions F?, and methods for preparing said novel catalysts.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: June 13, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Francois Figueras, Boyapati Manoranjan Choudary, Mannepalli Lakshmi Kantam, Vattipally Neeraja, Kottapalli Koteswara Rao
  • Patent number: 7038072
    Abstract: The present invention is directed to a process for the synthesis of monoalkylated C—H acidic methylene group-containing compounds, such as malonic esters, and malonic ester nitriles.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: May 2, 2006
    Assignee: Degussa AG
    Inventors: Kerstin Bodmann, Oliver Meyer, Manfred Kaufhold, Jürgen Fieker, Renate Paulczynski
  • Patent number: 7026478
    Abstract: A process for the production of compounds Ar—R1 by means of a cross-coupling reaction of an organometallic reagent R1-M with an aromatic or heteroaromatic substrate Ar—X catalyzed by one or several iron salts or iron complexes as catalysts or pre-catalysts, present homogeneously or heterogeneously in the reaction mixture. This new invention exhibits substantial advantages over established cross coupling methodology using palladium- or nickel complexes as the catalysts. Most notable aspects are the fact that (i) expensive and/or toxic nobel metal catalysts are replaced by cheap, stable, commercially available and toxicologically benign iron salts or iron complexes as the catalysts or pre-catalysts, (ii) commercially attractive aryl chlorides as well as various aryl sulfonates can be used as starting materials, (iii) the reaction can be performed under “ligand-free” conditons, and (iv) the reaction times are usually very short.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: April 11, 2006
    Assignee: Studiengesellschaft Kohle mbH
    Inventors: Alois Fürstner, Andreas Leitner, María Méndez
  • Patent number: 6992206
    Abstract: A process is described for preparing 3-trifluoromethylphenyl 4-cyanobenzyl ketone by reacting a C1–C2-alkyl 3-trifluoromethylbenzoate with 4-tolunitrile in an aprotic polar solvent or an aprotic polar solvent mixture in the presence of at least an equimolar amount of a base which is selected from potassium alkoxides of primary C1–C4-alkanols.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: January 31, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Engel, Michael Keil, Christian Ott, Michael Rack
  • Patent number: 6939982
    Abstract: The present invention relates to chiral metal catalysts for stereoselective olefin metathesis reactions, which are recyclable and reusable in such metathesis reactions. The chiral metal-based metathesis catalysts of the invention comprise multidentate optically active or racemic chiral ligands that enable their use in asymmetric synthetic processes, such as for example, in ring-opening and ring-closing metathesis reactions (ROM and RCM, respectively) of alkenes. The catalysts of the invention are organometallic complexes of multivalent metals comprising one or more chiral bidentate ligands that exhibit superior reactivity and stereoselectivity properties. The present invention also provides methods of making such catalysts and methods for utilizing them in catalyzing stereoselective olefin metathesis reactions to provide asymmetric products in relatively high enantiomeric or stereoisomeric excess.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: September 6, 2005
    Assignee: The Trustees of Boston College
    Inventors: Amir H. Hoveyda, Joshua Van Veldhuizen, Steven B. Garber, Jason S. Kingsbury
  • Patent number: 6894184
    Abstract: A process is described for producing 2-cyano-3-hydroxy-N-(phenyl)but-2-enamide, in which a phenyl-substituted 2-cyano-N-(phenyl)acetamide is reacted in the presence of a base, acetic anhydride and at least one solvent, and the resultant 2-cyano-3-hydroxy-N-(phenyl-derivative)but-2-enamide is crystallized by acidification.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: May 17, 2005
    Assignee: Aventis Pharma Deutschland GmbH
    Inventors: Jochen Hachtel, Bernd Neises, Wilfried Schwab, Roland Utz, Martin Zahn
  • Patent number: 6844463
    Abstract: Process for the carbonylation of n-pentenoic acid or its derivatives of the formula (I) C4H7—R1??(I) where R1 is —CN or COOR2 where R2 is hydrogen, alkyl or aryl by reaction of a compound of the formula (I) with carbon monoxide and a compound (II) containing a hydroxyl group in the presence of a catalyst system, wherein the catalyst system is obtainable by reaction of a) a source for a metal ion of a metal (III) of the 8th subgroup of the Periodic Table of the Elements with b) a bidentate phosphine ligand of the formula (IV) (R3R4R5C)(R6R7R8C)P-L1-X-L2-P(CR9R10R11) (CR12R13R14)??(IV) where R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14 independently of one another is an organic radical which in each case contains a carbon atom, via which the respective radical is linked to the relevant tertiary carbon atom mentioned in formula (IV); L1, L2 independently of one another are a lower alkylene group; X is an arylene group.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: January 18, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Slany, Martin Schäfer, Michael Röper
  • Publication number: 20040199002
    Abstract: The present invention lies in a process for producing a compound represented by the following formula [IV], which comprises the following steps (1) to (3), as well as in an intermediate therefor.
    Type: Application
    Filed: March 25, 2004
    Publication date: October 7, 2004
    Inventors: Tetsuya Abe, Toshihiro Nagata, Fumiaki Takabe, Kazuto Umezu, Yusuke Hamada
  • Publication number: 20040162440
    Abstract: Disclosed in a process for making (1) a compound of the formula NC—CH2—CH2—CH2—CH2—CO2R′, wherein R′ is H or C1 to C12 alkyl, or (2) adipic acid or (3) dimethyl adipate, using as the substrate, 3-pentenenitrile, (2) 3-pentenoic acid or methyl 3-pentenoate, respectively, by contacting the substrate with carbon monoxide and a nucleophile in the presence of a Group VIII metal, a selected ligand, and an acid promoter. The nucleophile, which (a) an alcohol or water, or (b) water or (c) methanol, respectively, in the presence of a Group VIII metal, preferably palladium, a selected phosphine ligand, and an acid promoter.
    Type: Application
    Filed: October 2, 2003
    Publication date: August 19, 2004
    Inventors: Emilio E. Bunel, David A. Clark
  • Publication number: 20040097745
    Abstract: The invention pertains to the use of Group 8 transition metal carbene complexes as catalysts for olefin cross-metathesis reactions. In particular, ruthenium and osmium alkylidene complexes substituted with an N-heterocyclic carbene ligand are used to catalyze cross-metathesis reactions to provide a variety of substituted and functionalized olefins, including phosphonate-substituted olefins, directly halogenated olefins, 1,1,2-trisubstituted olefins, and quaternary allylic olefins. The invention further provides a method for creating functional diversity using the aforementioned complexes to catalyze cross-metathesis reactions of a first olefinic reactant, which may or may not be substituted with a functional group, with each of a plurality of different olefinic reactants, which may or may not be substituted with functional groups, to give a plurality of structurally distinct olefinic products.
    Type: Application
    Filed: April 1, 2002
    Publication date: May 20, 2004
    Inventors: Robert H. Grubbs, Arnab K. Chatterjee, Tae-Lim Choi, Steven D. Goldberg, Jennifer A. Love, John P. Morgan, Daniel P. Sanders, Matthias Scholl, F. Dean Toste, Tina M. Trnka
  • Publication number: 20030236427
    Abstract: The invention pertains to the use of Group 8 transition metal alkylidene complexes as catalysts for olefin cross-metathesis reactions. In particular, ruthenium and osmium alkylidene complexes substituted with an N-heterocyclic carbene ligand and at least one electron donor ligand in the form of a heterocyclic group are used to catalyze cross-metathesis reactions to provide a olefin products that are directly substituted with an electron-withdrawing group.
    Type: Application
    Filed: April 7, 2003
    Publication date: December 25, 2003
    Inventors: Robert H. Grubbs, John P. Morgan, Jennifer A. Love, Tina M. Trnka
  • Publication number: 20030208068
    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: Application
    Filed: March 13, 2003
    Publication date: November 6, 2003
    Inventors: Jiacheng Zhou, Lynette May Oh, Philip Ma
  • Publication number: 20030158421
    Abstract: The invention relates to a method for the 1,3 dipolar cycloaddition of organic compounds, characterised in that the reaction is carried out in a microreactor.
    Type: Application
    Filed: April 18, 2003
    Publication date: August 21, 2003
    Inventors: Hanns Wurziger, Joeran Stoldt, Guido Pieper, Norbert Schwesinger
  • Publication number: 20030137241
    Abstract: The invention aims to provide a perylene derivative preparation process featuring satisfactory yields and improved preparation efficiency, a perylene derivative obtained by the process, and an organic EL device using the same.
    Type: Application
    Filed: July 5, 2002
    Publication date: July 24, 2003
    Applicant: TDK CORPORATION
    Inventors: Tetsuji Fujita, Kensuke Ara, Tetsushi Inoue
  • Publication number: 20030139623
    Abstract: Disclosed is a process for the preparation of a compound of the formula (1) wherein R1 is unsubstituted or substituted alkyl, comprising reacting a compound of the formula (2) with a compound of the formula (3) in the presence of an aqueous base and a phase transfer catalyst.
    Type: Application
    Filed: October 1, 2002
    Publication date: July 24, 2003
    Inventors: Vadiraj S Ekkundi, Vilas N Mumbaikar, Niranjan Paingankar, Paul Adriaan Van Der Schaaf
  • Publication number: 20030105349
    Abstract: The present invention relates to a process for preparing &bgr;-ketonitriles.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 5, 2003
    Inventor: Oskar Koch
  • Publication number: 20030105348
    Abstract: Disclosed in a process for making (1) a compound of the formula NC—CH2—CH2—CH2—CH2—CO2R′, wherein R′ is H or C1 to C12 alkyl, or (2) adipic acid or (3) dimethyl adipate, using as the substrate, 3-pentenenitrile, (2) 3-pentenoic acid or methyl 3-pentenoate, respectively, by contacting the substrate with carbon monoxide and a nucleophile in the presence of a Group VIII metal, a selected ligand, and an acid promoter. The nucleophile, which (a) an alcohol or water, or (b) water or (c) methanol, respectively, in the presence of a Group VIII metal, preferably palladium, a selected phosphine ligand, and an acid promoter.
    Type: Application
    Filed: November 19, 2001
    Publication date: June 5, 2003
    Inventors: Emilio E. Bunel, David A. Clark
  • Publication number: 20030100776
    Abstract: The invention pertains to the use of Group 8 transition metal carbene complexes as catalysts for olefin cross-metathesis reactions. In particular, ruthenium and osmium alkylidene complexes substituted with an N-heterocyclic carbene ligand are used to catalyze cross-metathesis reactions to provide a variety of substituted and functionalized olefins, including phosphonate-substituted olefins, directly halogenated olefins, 1,1,2-trisubstituted olefins, and quaternary allylic olefins. The invention further provides a method for creating functional diversity using the aforementioned complexes to catalyze cross-metathesis reactions of a first olefinic reactant, which may or may not be substituted with a functional group, with each of a plurality of different olefinic reactants, which may or may not be substituted with functional groups, to give a plurality of structurally distinct olefinic products.
    Type: Application
    Filed: April 1, 2002
    Publication date: May 29, 2003
    Inventors: Robert H. Grubbs, Arnab K. Chatterjee, Tae-Lim Choi, Steven D. Goldberg, Jennifer A. Love, John P. Morgan, Daniel P. Sanders, Matthias Scholl, F. Dean Toste, Tina M. Trnka
  • Publication number: 20030092928
    Abstract: Functionalized allylic olefins are condensed by metathesis using the catalyst 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene ruthenium benzylidene [Ru*].
    Type: Application
    Filed: August 23, 2002
    Publication date: May 15, 2003
    Inventors: Kenneth Wagener, James Pawlow, John Sworen
  • Patent number: 6559331
    Abstract: Functionalized allylic olefins are condensed by metathesis using the catalyst 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene ruthenium benzylidene [Ru*].
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: May 6, 2003
    Assignee: University of Florida
    Inventors: Kenneth Wagener, James Pawlow, John Sworen
  • Publication number: 20030065206
    Abstract: This invention provides improved methods for the derivatization and solubilization of fullerenes, which are particularly useful for those fullerenes that are normally insoluble and which are specifically applied, among others, to endohedral fullerenes, including endohedral metallofullerenes; empty fullerenes, including small-bandgap fullerenes and other insoluble fullerenes and to very high molecular weight fullerenic materials generated in fullerenic soot, including giant fullerenes, fullerenic polymers, carbon nanotubes and metal-carbon nanoencapsulates. More specifically the invention relates to improved methods for cyclopropanation of fullerenes. Specific reaction conditions are provided which allow for cyclopropanation reactions to be successfully performed for the first time on insoluble classes of fullerenes.
    Type: Application
    Filed: October 1, 2002
    Publication date: April 3, 2003
    Inventors: Robert D. Bolskar, J. Michael Alford
  • Publication number: 20030032833
    Abstract: Continuous processes for forming cyanoacrylate from polycyanoacrylate include stripping a solvent from a reaction mass; cracking a polymer in the reaction mass to form a cracked cyanoacrylate monomer and residue substances; and distilling the cracked cyanoacrylate monomer to produce a cyanoacrylate monomer product. These steps can be performed in short-path, wiped-film evaporators. Polycyanoacrylate used in the processes can be formed using cyanoacetate produced by processes for continuously producing cyanoacetate by forming a higher homologue cyanoacetate from a lower homologue cyanoacetate. The cyanoacetate can be formed in short-path, wiped-film evaporators.
    Type: Application
    Filed: May 16, 2002
    Publication date: February 13, 2003
    Applicant: Closure Medical Corporation
    Inventors: Ibraheem T. Badejo, Jaime Ayarza, Kenneth W. Davis, Jeffrey R. Hennenkamp
  • Publication number: 20020173672
    Abstract: An improved method is described for making 9-deoxy-PGF1-type compounds. In contrast to the prior art, the method is stereoselective and requires fewer steps than the known methods for making these compounds.
    Type: Application
    Filed: July 1, 2002
    Publication date: November 21, 2002
    Applicant: UNITED THERAPEUTICS CORPORATION
    Inventors: Robert M. Moriarty, Raju Penmasta, Liang Guo, Munagala S. Rao, James P. Staszewski
  • Publication number: 20020115880
    Abstract: A process for preparing 4-substituted 2-alkylbiphenyls and 2-alkoxybiphenyls of the formula (I), 1
    Type: Application
    Filed: February 11, 2002
    Publication date: August 22, 2002
    Applicant: Clariant GmbH
    Inventors: Andreas Meudt, Stefan Scherer, Frank Vollmuller, Heinz Georg Kautz
  • Publication number: 20020115870
    Abstract: A method of preparing a compound of formula I is described.
    Type: Application
    Filed: November 21, 2001
    Publication date: August 22, 2002
    Inventors: Jiann T?apos;suen Lin, Iuan-Yuan Wu, Yu-Tai Tao, E. Balasubramaniam
  • Publication number: 20020058831
    Abstract: Functionalized allylic olefins are condensed by metathesis using the catalyst 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene ruthenium benzylidene [Ru*].
    Type: Application
    Filed: May 4, 2001
    Publication date: May 16, 2002
    Inventors: Kenneth Wagener, James Pawlow, John Sworen
  • Patent number: 6380420
    Abstract: A process for preparing fatty amines by the cross-metathesis of normal alpha olefins and acrylonitrile to form an intermediate fatty acid nitrile which is hydrogenated to the corresponding fatty amine.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: April 30, 2002
    Assignee: Chevron U.S.A. Inc.
    Inventors: William L. Schinski, Michael S. Driver
  • Publication number: 20020007081
    Abstract: The present invention relates to a process for producing tricarbonitriles corresponding to formula I 1
    Type: Application
    Filed: June 28, 2001
    Publication date: January 17, 2002
    Inventors: Michael Schelhaas, Manfred Jautelat
  • Publication number: 20010053862
    Abstract: A process for the synthesis of arylpiperidine carbinol intermediates and derivatives is disclosed.
    Type: Application
    Filed: March 22, 2001
    Publication date: December 20, 2001
    Inventors: Bruce Ronsen, Subhash P. Upadhyaya
  • Patent number: 6310032
    Abstract: Described are &agr;-oxygen-substituted cyclohexane propionitriles having the structure: wherein R20 and R21 are the same or different C1-C3 lower alkoxy; or wherein R20 is hydrogen and R21 is hydroxy, C1-C3 lower alkoxy or C1-C3 lower acyloxy; and wherein R1, R2, R3, R4, R5, R6 and R7 are the same or different hydrogen or C1-C4 lower alkyl, and uses thereof for their organoleptic properties in augmenting or enhancing or imparting aromas in or to perfume compositions, colognes, microporous polymers or perfumed articles including solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, fabric softener articles, hair care compositions and the like.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: October 30, 2001
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Richard A. Weiss, Marie R. Hanna, Charles E. J. Beck
  • Patent number: 6291730
    Abstract: A liquid phase process is disclosed for producing halogenated alkane adducts of the formula: CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) which involves contacting a corresponding halogenated alkane, AB, with a corresponding olefin, CR1R2═C3R4 in a dinitrile or cyclic carbonate ester solvent which divides the reaction mixture into two liquid phases and in the presence of a catalyst system containing: (i) at least one catalyst selected from monovalent and divalent copper; and optionally (ii) a promoter selected from aromatic or aliphatic heterocyclic compounds which contain at least one carbon-nitrogen double bond in the heterocyclic ring. When hydrochlorofluorocarbons are formed, the chlorine content may be reduced by reacting the hydrochlorofluorocarbons with HF. New compounds disclosed include CF3CF2CCl2CH2CCl3, CF3CCl2CH2CH2Cl and CF3CCl2CH2CHClF. These compounds are useful as intermediates for producing hydrofluorocarbons.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: September 18, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Ralph Thomas Baker, Viacheslav Alexandrovich Petrov, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
  • Patent number: 6140265
    Abstract: A catalyst system, in particular for carrying out cross-coupling reactions is obtainable by reactinga) a palladium(II) compound withb) a water-soluble phosphine ligand andc) a sulfoxide or polyhydric alcohol.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: October 31, 2000
    Assignee: Clariant GmbH
    Inventors: Steffen Haber, Norbert Egger
  • Patent number: 6066766
    Abstract: 4-Chlorobiphenyls are prepared by reacting a haloaromatic with an aryl Grignard compound, where halogen is chlorine, bromine or iodine, in the presence of a palladium catalyst of the formula (IV) ##STR1##
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: May 23, 2000
    Assignee: Clariant GmbH
    Inventors: Steffen Haber, Stefan Scherer, Andreas Meudt, Antje Noerenberg