Nitrogen Bonded Directly To The Metal Patents (Class 556/137)
-
Patent number: 7112690Abstract: A series of noble metal organometallic complexes of the general formula (I): MLaXb(FBC)c, wherein M is a noble metal such as iridium, ruthenium or osmium, and L is a neutral ligand such as carbonyl, alkene or diene; X is an anionic ligand such as chloride, bromide, iodide and trifluoroacetate group; and FBC is a fluorinated bidentate chelate ligand such as beta diketonate, beta-ketoiminate, amino-alcoholate and amino-alcoholate ligand, wherein a is an integer of from zero (0) to three (3), b is an integer of from zero (0) to one (1) and c is an 10 integer of from one (1) to three (3). The resulting noble metal complexes possess enhanced volatility and thermal stability characteristics, and are suitable for chemical vapor deposition(CVD) applications. The corresponding noble metal complex is formed by treatment of the FBC ligand with a less volatile metal halide.Type: GrantFiled: November 8, 2002Date of Patent: September 26, 2006Assignees: National Research Council of Canada, National Tsing Hua UniversityInventors: Yun Chi, Yao-Lun Chen, Chao-Shiuan Liu, Yi-Hwa Song, Ying-Hui Lai, Arthur J. Carty
-
Patent number: 7098355Abstract: A method for synthesizing an organometallic compound, which is usefully utilized as a catalyst for manufacturing polyolefins by ring-opening metathesis polymerization of an olefin having strain in a molecule such as dicyclopentadiene or synthesizing epothilones by ring-dosing metathesis reaction, by an efficient and low cost synthesis method using a starting material which is easily available due to relatively simple chemical structure, and further without any possibility of coexistence of a vinylhetero compound or a vinyl compound exchanged which tends to accompany as an impurity in the system in conventional methods, characterized by reacting a starting material comprising a zero-valent transition metal complex (A) or a polyvalent transition metal complex (A?), a compound (B) or (B?) shown by the following general formula (1) or (4), respectively, and a neutral ligand (C) or (C?), in one step under non-reducing condition or reducing condition.Type: GrantFiled: September 27, 2002Date of Patent: August 29, 2006Assignee: Sekisui Chemical Co., Ltd.Inventors: Hiroshi Hiraike, Takeharu Morita, Fumiyuki Ozawa, Hiroyuki Katayama
-
Patent number: 7094898Abstract: A new class of compounds is disclosed that in preferred embodiments relate to Ru-based catalysts suitable for use in olefin metathesis reactions. Such compounds demonstrate high rates of catalytic turnover in comparison with other Ru catalysts known in the art. Moreover, the catalysts are highly stable, and readily suited to attachment to a solid support via the anionic ligands. The invention also pertains to methods of producing the catalysts, and their use in catalyzing olefin metathesis reactions.Type: GrantFiled: May 28, 2004Date of Patent: August 22, 2006Assignee: University of OttawaInventors: Deryn Elizabeth Fogg, Jay Christopher Conrad
-
Patent number: 7087687Abstract: A catalytic composition, including a cationic metal-pair complex, is disclosed, along with a method for its preparation. A method for the polymerization of ethylenically unsaturated monomers using the catalytic composition, and the addition polymers produced thereby are also disclosed.Type: GrantFiled: May 28, 2004Date of Patent: August 8, 2006Assignee: Rohm and Haas CompanyInventors: Brian Leslie Goodall, Jennifer Lynn Petoff, Han Shen
-
Patent number: 7084288Abstract: The object of this invention is to provide an organometallic precursor for forming a metal film or pattern and a method of forming the metal film or pattern using the same. More particularly, the present invention provides an organometallic precursor containing a hydrazine-based compound coordinated with a central metal thereof, and a method of forming a metal film or pattern using the same. Further, the present invention provides a composition containing an organometallic compound and a hydrazine-based compound, and a method of forming a metal film or pattern using the same. Additionally, the present invention is advantageous in that a pure metal film or pattern is formed using the organometallic precursor or composition through a simple procedure without limiting atmospheric conditions at a low temperature, and the film or pattern thus formed has excellent conductivity and morphology. Therefore, the film is useful in an electronic device field including flexible displays and large-sized TFT-LCD.Type: GrantFiled: October 2, 2003Date of Patent: August 1, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Hae Jung Son, Euk Che Hwang, Sang Yoon Lee, Soon Taik Hwang, Byong Ki Yun
-
Patent number: 7060768Abstract: Certain complexes containing ligands having a phosphino group, amino group or an imino group, and a second functional group such as amide, ester or ketone, when complexed to transition metals, catalyze the (co)polymerization of olefinic compounds such as ethylene, ?-olefins and/or acrylates. A newly recognized class of ligands for making copolymer containing polar monomers using late transition metal complexes is described.Type: GrantFiled: January 20, 2004Date of Patent: June 13, 2006Assignees: E.I. duPont de Nemours and Company, University of North Carolina at Chapel HillInventors: Maurice S. Brookhart, Keith Kunitsky, Weijun Liu, Jon M. Malinoski, Lin Wang, Ying Wang, Lynda Kaye Johnson, Kristina A. Kreutzer, Steven Dale Ittel
-
Patent number: 7057059Abstract: A tumor-inhibiting platinum (II) oxalate complex and its use as a therapeutic agent are provided, in particular as a tumor-inhibiting medicament.Type: GrantFiled: December 14, 2004Date of Patent: June 6, 2006Assignee: Faustus Forschungs CIE. Translational Cancer Research GmbHInventor: Bernhard Keppler
-
Patent number: 7045646Abstract: This invention describes a convenient method for the preparation and use of a ruthenium catalyst for a chiral reduction of ketones and imines.Type: GrantFiled: March 19, 2004Date of Patent: May 16, 2006Assignee: Agouron Pharmaceuticals, Inc.Inventors: Steven P. Tanis, Bruce Evans
-
Patent number: 7034157Abstract: Olefin polymerization catalyst precursors are described herein. The precursors are generally characterized by the formula: wherein M is a transition metal selected from groups 8 to 10 of the Periodic Table; n is an integer of from 1 to 3; Q is a halogen or a C1 to C2 alkyl group; PY is a pyridinyl group, which is coordinated with M through the nitrogen atom of said pyridinyl group; R? is a C1 to C20 hydrocarbyl group; R? is a C1 to C20 hydrocarbyl group; A1 is a monoaromatic group, which is substituted or unsubstituted; and A2 includes multiple aromatic groups, which are substituted or unsubstituted.Type: GrantFiled: October 23, 2003Date of Patent: April 25, 2006Assignee: Fina Technology, Inc.Inventors: Abbas Razavi, Vladimir Marin, Margarito Lopez
-
Patent number: 7030200Abstract: Late transition metal complexes of certain ligands which contain phosphinidine and/or imine groups are useful as components of polymerization catalysts for olefins. Useful metals in the complexes include Ni, Pd, Fe and Co. Oligomers and/or polymers of olefins such as ethylene can be made.Type: GrantFiled: March 5, 2003Date of Patent: April 18, 2006Assignees: E.I. du Pont de Nemours and Company, University of North CarolinaInventors: Maurice Brookhart, Olafs Daugulis
-
Patent number: 7026480Abstract: Disclosed herein are novel light-emitting materials of Formula I and II below. These new complexes are synthesized and found to be sufficiently stable to allow sublimation and vacuum deposition. These new emitters are electrophosphorescent and can be used in organic light-emitting devices (OLEDs) for device elements capable of emitting light of color ranging from orange to red with high-efficiency and high-brightness. wherein E=Group 16 elements (including sulphur); M=Group 10 metal (including platinum); R1-R14 are each independently selected from the group consisting of hydrogen; halogen; alkyl; substituted alkyl; aryl; substituted aryl, with substituents selected from the group consisting of halogen, lower alkyl and recognized donor and acceptor groups. R1 can also be selected from (C?C)nR15, where (C?C) represents a carbon-carbon triple bond (acetylide group), n is selected from 1 to 10, and R15 is selected from alkyl, aryl, substituted aryl, and tri(alkyl)silyl.Type: GrantFiled: March 8, 2002Date of Patent: April 11, 2006Assignee: The University of Hong KongInventors: Chi-Ming Che, Wei Lu, Michael Chi-Wang Chan
-
Patent number: 7022422Abstract: A luminescent material for a light emitting device represented by the following general formula (1) or (2) or represented by any of general formulae (3) to (16) as described herein, wherein D is a ligand represented by the following general formula (17) or (18) and R1 through R6 are as described herein.Type: GrantFiled: February 26, 2003Date of Patent: April 4, 2006Assignee: Sanyo Electric Co. Ltd.Inventors: Yuji Hamada, Noriyuki Matsusue, Kazuki Nishimura
-
Patent number: 7019158Abstract: Chiral organometallic compounds are provided which comprise certain non-symmetrically substituted cyclopentadiene complexed to a transition metal. The cyclopentadiene has a second coordinating group which also complexes the transition metal and is attached to the cyclopentadiene by means of a chiral connecting chain. Preferred transition metals include rhodium, ruthenium, iridium, cobalt, iron, manganese, chromium, tungsten, molybdenum, nickel, palladium, or platinum. These chiral organometallic compounds find use in asymmetric synthesis to produce chiral compounds.Type: GrantFiled: August 2, 2002Date of Patent: March 28, 2006Assignee: Avecia LimitedInventor: Richard John Whitby
-
Patent number: 7015344Abstract: A process for forming an organometallic cyclometallated Group viiib metal complex comprises reacting a Group viiib metal compound with a heterocyclic compound capable of forming an organometallic cyclometallated complex in the presence of a solvent comprising an aromatic oxygen containing compound.Type: GrantFiled: June 29, 2004Date of Patent: March 21, 2006Assignee: Eastman Kodak CompanyInventor: Joseph C. Deaton
-
Patent number: 7005522Abstract: A process for forming a tris-cyclometallated iridium or rhodium complex comprises reacting in the presence of a solvent: a) a bis-cyclometallated complex comprising an Ir (III) or Rh (III) metal, two bidentate ligands, two monodentate ligands and a counterion, and b) a heterocyclic compound capable of forming an organometallic cyclometallated complex.Type: GrantFiled: June 29, 2004Date of Patent: February 28, 2006Assignee: Eastman Kodak CompanyInventor: Joseph C. Deaton
-
Patent number: 7002033Abstract: A chemical vapor deposition material comprising a ruthenium compound having a ligand represented by the following formula: wherein R1, R2 and R3 are each independently a hydrogen atom, fluorine atom, trifluoromethyl group or hydrocarbon group having 1 to 10 carbon atoms, and a method of forming a ruthenium film from the chemical vapor deposition material by chemical vapor deposition. A high-quality ruthenium film even when it is very thin can be obtained.Type: GrantFiled: July 25, 2005Date of Patent: February 21, 2006Assignee: JSR CorporationInventors: Tatsuya Sakai, Sachiko Hashimoto, Yasuo Matsuki
-
Patent number: 6998498Abstract: Novel aminocyclopentadienyl ruthenium complex is useful as a catalyst in the racemization of a chiral compound.Type: GrantFiled: May 17, 2002Date of Patent: February 14, 2006Assignee: Postech FoundationInventors: Jaiwook Park, Mahn-Joo Kim, Jun Ho Choi, Yangsoo Ahn
-
Patent number: 6979681Abstract: Ruthenium (II) compounds of the formula: wherein: R1 is —CO2CH3; R2, R3, R4, R5 and R6 independently represent H, alkyl, cylcoalkyl, —CO2R?, aryl or alkylaryl, which latter two groups are optionally substituted on the aromatic ring; R? represents alkyl, cylcoalkyl, aryl or alkaryl; X is halo, H2O, (R?)(R?)SO, R?CO2? or (R?)(R?)C?O, where R? represents alkyl, cylcoalkyl, aryl or alkaryl; Y is a counterion; m is 0 or 1; q is 1, 2 or 3; C? is C1 to C12 alkylene, optionally substituted in or on the alkylene chain, bound to two A groups; p is 0 or 1 and r is 1 when p is 0 and r is 2 when p is 1; and A and B are: each independently R11—CN, where R? represents alkyl or cycloalkyl; or B is halo and A is 4-substitued pyridine; or p is 0, A is NR7R8 and B is NR9R10wherein R7, R8, R9 and R10 independently represent H, or alkyl, and A and B are linked by an alkylene chain, optionally substituted in or on the alkylene chain; or p is 1, A is NR7 and B is NR9R10, wherein R7, R9 and R10 are as previously defined, and A aType: GrantFiled: May 18, 2004Date of Patent: December 27, 2005Assignee: University Court, The University of EdinburghInventors: Robert Edward Morris, Peter John Sadler, Haimei Chen, Duncan Jodrell
-
Patent number: 6979739Abstract: The present invention is generally directed to electroluminescent Ir(III) compounds, the substituted 2-phenylpyridines, phenylpyrimidines, and phenylquinolines that are used to make the Ir(III) compounds, and devices that are made with the Ir(III) compounds.Type: GrantFiled: June 12, 2003Date of Patent: December 27, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Vladimir Grushin, Viacheslav A. Petrov, Ying Wang
-
Patent number: 6965028Abstract: This invention features a supramolecule having the following structure: M is a transition metal atom that is rhenium (Re), manganese (Mn), chromium (Cr), molybdenum (Mo), tungsten (W), iron (Fe), ruthenium (Ru), or osmium (Os); Y is a nitrogen-based didentate ligand; A is O, S, Se, or Te; R is C3˜C16 alkyl, (CH2)n-aryl, or (CH2)n-aryl-(O—C1˜C16 alkyl)p, in which n is 0-15, p is 1-3; and m is 1, 2, 3, 4, or 5.Type: GrantFiled: January 24, 2002Date of Patent: November 15, 2005Assignee: Academia SinicaInventors: Kuang-Lieh Lu, Manimaran Bala, Thangamuthu Rajendran, Yi-Long Lu, Gene-Hsiang Lee, Shie-Ming Peng
-
Patent number: 6946688Abstract: The present invention is generally directed to electroluminescent Ir(III) compounds, the substituted 2-phenylpyridines, phenylpyrimidines, and phenylquinolines that are used to make the Ir(III) compounds, and devices that are made with the Ir(III) compounds.Type: GrantFiled: October 29, 2003Date of Patent: September 20, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Vladimir Grushin, Daniel David Lecloux, Viacheslav A. Petrov, Ying Wang
-
Patent number: 6939981Abstract: Disclosed are ruthenium complexes of phosphine-aminophosphine ligands that may be used to catalyze large number of reactions of a wide variety of substrates such as asymmetric hydrogenations, asymmetric reductions, asymmetric hydroborations, asymmetric olefin isomerizations, asymmetric hydrosilations, asymmetric allylations, and asymmetric organometallic additions. Also disclosed is a process for the preparation of the ruthenium complexes and processes for the enantioselective asymmetric hydrogenations of 1,3-dicarbonyl, ?-hydroxycarbonyl, and ?-hydroxycarbonyl compounds to produce the corresponding hydroxycarbonyl, 1,2-diol, and 1,3-diol compounds, respectively, using the ruthenium complexes to catalyze the hydrogenation.Type: GrantFiled: June 25, 2004Date of Patent: September 6, 2005Assignee: Eastman Chemical CompanyInventor: Neil Warren Boaz
-
Patent number: 6939969Abstract: This invention provides an amido ligand and its synthesis. Use of the amide ligand in a variety of metal complexes, and transition metals in particular, is also provided.Type: GrantFiled: April 2, 2002Date of Patent: September 6, 2005Assignee: California Institute of TechnologyInventors: Jonas C. Peters, Steven D. Brown, Seth B. Harkins
-
Patent number: 6936634Abstract: Compounds which may be used in the treatment and/or prevention of cancer have the formula (I): wherein R1 and R2 together with the ring to which they are bound represent a saturated or unsaturated carbocyclic or heterocyclic groupType: GrantFiled: June 26, 2001Date of Patent: August 30, 2005Assignee: The University Court, The University of Edinburgh (UK)Inventors: Robert Edward Morris, Peter John Sadler, Duncan Jodrell, Haimei Chen
-
Patent number: 6933400Abstract: Complexes of the formulae I a to d, where M is an element of groups 6 to 10 of the Periodic Table of the Elements, preferably Ni, can be used for the polymerization and copolymerization of olefins, for example in suspension polymerization processes, gas-phase polymerization processes, bulk polymerization processes and emulsion polymerization processes.Type: GrantFiled: February 7, 2002Date of Patent: August 23, 2005Assignee: BASF AktiengesellschaftInventors: Marc Oliver Kristen, Benno Bildstein, Alexander Krajete
-
Patent number: 6887820Abstract: A method for producing optically active compounds is disclosed. The method is highly practical for producing optically active compounds useful for various utilities such as intermediates for synthesizing pharmaceutical agents, liquid crystal materials and agents for optical resolution.Type: GrantFiled: September 14, 2000Date of Patent: May 3, 2005Assignees: Japan Science and Technology Corporation, NKK Corporation, Takeda Pharmaceutical Company Limited, Asahi Kasei Pharma Corporation, Takasago International CorporationInventors: Takao Ikariya, Shohei Hashiguchi, Jun Takehara, Nobuyuki Uematsu, Kazuhiko Matsumura, Ryoji Noyori, Akio Fujii
-
Patent number: 6888002Abstract: The invention relates to novel transition metal complexes containing at least one diaminocarbene ligand, to processes for preparing these transition metal complexes and to their use as catalysts in organic reactions.Type: GrantFiled: September 30, 2002Date of Patent: May 3, 2005Assignee: Bayer AktiengesellschaftInventors: Wolfgang A. Herrmann, Karin Denk
-
Patent number: 6875518Abstract: A composition capable of forming a metal ruthenium film and a ruthenium oxide film by a simple application/baking process, a process for forming a metal ruthenium film and a ruthenium oxide film from the composition, a metal ruthenium film and a ruthenium oxide film formed by the process, and electrodes formed of the films. A solution composition comprising a specific ruthenium complex. The coating film of this solution composition is heated in an atmosphere containing no oxygen or an atmosphere containing oxygen to form a metal ruthenium film or a ruthenium oxide film, respectively, and electrodes formed of the films.Type: GrantFiled: October 16, 2001Date of Patent: April 5, 2005Assignee: JSR CorporationInventors: Hiroshi Shiho, Hitoshi Kato, Yasuo Matsuki, Satoshi Ebata, Yoichiro Maruyama, Yasuaki Yokoyama
-
Patent number: 6867316Abstract: Disclosed are a platinum (II) complex of N-substituted amino dicarboxylate showing antitumor activity represented by the following formula (1) and a preparation method thereof: wherein n is 1 or 2; A—A is a diamine selected from the group consisting of trans-(±)-1,2-diaminocyclohexane, ethylenediamine and 2,2-dimethyl-1,3-propanediamine; and R1 is hydrogen and R2 is RCO or RSO2, wherein R is an alkyl selected from the group consisting of methyl, ethyl, n-propyl, n-butyl and t-butyl or an aryl selected from the group consisting of phenyl and substituted phenyl group, or R1R2 is phthaloyl.Type: GrantFiled: January 8, 2004Date of Patent: March 15, 2005Assignee: Board of Trustees, Ewha Womans UniversityInventors: Youn Soo Sohn, Yeong-Sang Kim, Rita Song
-
Patent number: 6841693Abstract: A transition metal compound of Groups to 10 of the Periodic Table, represented by the following formula (1): wherein M represents a transition metal of Groups 8 to 10 of the Periodic Table; L, electrically neutral, represents a hetero atom-containing hydrocarbon group represented by the following formula (2) wherein R1 to R5 each independently represent a hydrogen atom, a halogen atom, a hydrocarbon group having form 1 to 20 carbon atoms, a halogenohydrocarbon group having from 1 to 20 carbon atoms, or a hetero atom-containing group, and optionally these groups are bonded to each other to form a ring; R6 represents a hydrogen atom, a hydrocarbon group having form 1 to 40 carbon atoms, a halogenohydrocarbon group having from 1 to 40 carton atoms, or a hetero atom-containing group; L? electrically neutral, represents a hetero atom-containing hydrocarbon group represented by the following formula (3) wherein R7 to R11 each independently represent a hydrogen atom, a halogen atom, a hydrocarbon groupType: GrantFiled: November 10, 2000Date of Patent: January 11, 2005Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Masami Watanabe, Haruhito Sato, Masahiko Kuramoto, Shinji Tanaka, Takao Tamura
-
Publication number: 20040266747Abstract: Novel tumour selective anti-neoplastic agents are characterized, in that to customary antineoplastic agents are attached one or two very specific unbranched &OHgr;-hydroxyalkyl, (&OHgr;-hydroxy)alkenyl, &OHgr;-(2,3-dihydroxypropyloxy)alkyl or an (&OHgr;-(2,3-dihydroxypropyloxy))alkenyl groups R2 and R3 with 5 to 30 carbon atoms, forming a tumour selective conjugate as exemplified with the compounds of formulae I, II and III [] wherein R1 is a customary pharmaceutically acceptable inorganic or organic leaving group and A is 1,2-dimethylene, 1,3-trim ethylene, 1,2-cyclopentylene or 1,2-cyclohexylene.Type: ApplicationFiled: May 4, 2004Publication date: December 30, 2004Inventors: Hans R. Pfaendler, Alexander Klingl
-
Patent number: 6835835Abstract: The invention provides a process for forming an organometallic cyclometallated complex comprising the step of reacting, in an aprotic organic solvent, an organozinc complex of a desired organic ligand with a metal complex of an element of atomic number 74 to 79 bearing a leaving group.Type: GrantFiled: December 5, 2003Date of Patent: December 28, 2004Assignee: Eastman Kodak CompanyInventor: Shouquan Huo
-
Patent number: 6831187Abstract: The present invention relates to novel hetero-multimetallic catalyst precursors and catalysts for the polymerization of olefins.Type: GrantFiled: December 18, 2001Date of Patent: December 14, 2004Assignee: Univation Technologies, LLCInventor: Rex Eugene Murray
-
Publication number: 20040248873Abstract: The present invention provides a compound of formula (I): PtIV(N3)2X1X2Y1Y2, wherein X1 and X2 are the same or different and each one is a group NR1R2R3 wherein R1, R2 and R3 are the same or different and each can be any one of H and optionally substituted alkyl, aryl, aralkyl, acyl, cycloalkyl, heterocyclyl, alkenyl, aralkenyl, alkinyl, cycloalkenyl, or X1 and X2 together represent a group R1R2NR4NR1R2 wherein R1 and R2 have the same meaning as before, and R4 represents an optionally substituted divalent, saturated or unsaturated, alkyl chain, an optionally substituted divalent, saturated or unsaturated cycloalkyl or an optionally substituted divalent aryl, or R4 or two or more of R1, R2, R3 and R4 and the respective N atom(s) to which they are linked, represent an optionally substituted heterocyclyl having at least one ring containing said N atom(s); and Y1 and Y2 are the same or different or when cis together represent a divalent moiety Y3, wherein at least one of Y1 and Y2, or Y3, is a substantially labilType: ApplicationFiled: February 24, 2004Publication date: December 9, 2004Inventors: Peter John Sadler, Philippe Muller
-
Patent number: 6828454Abstract: Complexes of the formula I where M═Ni, Pd; process for preparing the metal complexes and the use of the complexes obtainable in this way for the polymerization and copolymerization of olefins, for example in suspension polymerization processes, gas-phase polymerization processes and bulk polymerization processes.Type: GrantFiled: February 12, 2003Date of Patent: December 7, 2004Assignee: BASF AktiengesellschaftInventors: Marc Oliver Kristen, Peter Preishuber-Pflügl, Benno Bildstein, Alexander Krajete
-
Patent number: 6822096Abstract: Chemicals which make not only a dark-red/light-red change of color but also a near-infrared/red change of luminescence via reversible adsorption/desorption of vapor of acetonitrile or ethanol, and therefore permit the observation of on-off change of visually effective luminescence and thus are useful as highly sensitive sensors. The chemicals are binuclear platinum (II) complexes of the following general formula: [Pt2(L)2(bpy)2]X2 or [Pt2(L)2(bpy)2]Y (wherein L is a bridging ligand selected from among 2-pyridinethiol anion, 2-quinolinethiol anion, 8-quinolinethiol anion and so on; bpy is 2,2-bipyridine; X is a monovalent anion; and Y is a bivalent anion), characterized by taking a syn form wherein the two bridging ligands (L) coordinate to one platinum ion at their respective sulfur atoms and to the other platinum ion at their respective nitrogen atoms.Type: GrantFiled: November 3, 2003Date of Patent: November 23, 2004Assignee: Japan Science and Technology AgencyInventor: Masako Kato
-
Publication number: 20040230081Abstract: This invention describes a convenient method for the preparation and use of a ruthenium catalyst for a chiral reduction of ketones and imines.Type: ApplicationFiled: March 19, 2004Publication date: November 18, 2004Applicant: Pfizer, Inc.Inventors: Steven P. Tanis, Bruce Evans
-
Patent number: 6818586Abstract: The present invention relates to novel hexacoordinated metathesis catalysts and to methods for making and using the same. The inventive catalysts are of the formula wherein: M is ruthenium or osmium; X and X1 are the same or different and are each independently an anionic ligand; L, L1′ and L2 are the same or different and are each independently a neutral electron donor ligand; and, R and R1 are each independently hydrogen or a substituent selected from the group consisting of C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkynyl, aryl, C1-C20 carboxylate, C1-C20 alkoxy, C2-C20 alkenyloxy, C2-C20 alkynyloxy, aryloxy, C2-C20 alkoxycarbonyl, C1-C20 alkylthio, C1-C20 alkylsulfonyl and C1-C20 alkylsulfinyl and silyl.Type: GrantFiled: June 14, 2002Date of Patent: November 16, 2004Assignees: Cymetech, LLP, California Institute of TechnologyInventors: Robert H. Grubbs, Melanie S. Sanford, Jason L. Moore, Jennifer A. Love, Tina M. Trnka
-
Publication number: 20040220166Abstract: Compounds which may be used in the treatment and/or prevention of cancer have the formula (I) wherein: R1, R2, R3, R4, R5 and R6 independently represents H, alkyl, —CO2R′, aryl or alkylaryl, which latter two groups are optionally substituted on the aromatic ring; R′ represent alkyl, aryl or alkaryl; X is halo, H2O, (R′)(R″)SO, R′CO2— or (R′)(R″)C═O, where R″ represents alkyl, aryl or alkaryl; Y is a counterion; m is 0 or 1; q is 1, 2 or 3; C′ is C1 to C12 alkylene, optionally substituted in or on the alkylene chain, bound to two A groups; p is 0 or 1 and r is 1 when p is 0 and r is 2 when p is 1; and A and B are: each independently N-donor nitrile ligands; or B is halo and A is an N-donor pyridine ligand, optionally substituted at one or more of the carbon atoms of the pyridine ring; or p is 0, A is NR7R8 and B is NR9R10, wherein R7, R8, R9 and R10 independently represent H or alkyl, and A and B are linked by an alkylene chain, optionallyType: ApplicationFiled: May 18, 2004Publication date: November 4, 2004Applicants: University Court, The University of Edinburgh, a United Kingdom corporationInventors: Robert Edward Morris, Peter John Sadler, Haimei Chen, Duncan Jodrell
-
Patent number: 6812306Abstract: Metal compounds of the formula I, where M is selected from among Ni and Pd in the oxidation state +II can be used for the polymerization or copolymerization of olefins. Supported catalysts for the polymerization and copolymerization of olefins can be obtained by application of one or more of the above-described ionic metal compounds to a support.Type: GrantFiled: January 2, 2003Date of Patent: November 2, 2004Assignee: BASF AktiengesellschaftInventors: Marc Oliver Kristen, Peter Hofmann, Frank Eisenträger
-
Patent number: 6809212Abstract: This invention relates to liquid cyclopentadienyltrimethylplatinum compounds selected from (isopropylcyclopentadienyl)trimethylplatinum and (tert-butylcyclopentadienyl)trimethylplatinum. This invention also relates to a process for producing a film, coating or powder by decomposing a cyclopentadienyltrimethylplatinum compound precursor selected from (isopropylcyclopentadienyl)trimethylplatinum and (tert-butylcyclopentadienyl)-trimethylplatinum, thereby producing the film, coating or powder. This invention further relates to a one pot method for producing an organometallic compound comprising reacting a metal source compound, an alkylating agent and a cyclopentadienyl compound under reaction conditions sufficient to produce said organometallic compound.Type: GrantFiled: June 11, 2003Date of Patent: October 26, 2004Assignee: Praxair Technology, Inc.Inventors: Scott Houston Meiere, Cynthia A. Hoover
-
Patent number: 6806325Abstract: Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed. Also disclosed are methods of making the carbene compounds. The carbene compounds are of the formula where M is Os or Ru; R1 is hydrogen; R is selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, and substituted or unsubstituted aryl; X and X1 are independently selected from any anionic ligand; and L and L1 are independently selected from any neutral electron donor. The ruthenium and osmium carbene compounds of the present invention may be synthesized using diazo compounds, by neutral electron donor ligand exchange, by cross metathesis, using acetylene, using cumulated olefins, and in a one-pot method using diazo compounds and neutral electron donors.Type: GrantFiled: December 19, 2002Date of Patent: October 19, 2004Assignee: California Institute of TechnologyInventors: Robert H. Grubbs, Peter Schwab, Sonbinh T. Nguyen
-
Patent number: 6806378Abstract: The present invention provides a catalyst system and a process for the preparation of a nonracemic chiral alcohol by hydrogenation of a ketone using the catalyst system, wherein the catalyst system comprises ruthenium, a nonracemic chiral diphosphine ligand, an amino-thioether ligand, and a base.Type: GrantFiled: May 21, 2002Date of Patent: October 19, 2004Assignee: DSM N.V.Inventors: Charles E. Tucker, Qiongzhong Jiang
-
Publication number: 20040176623Abstract: The object of this invention is to provide an organometallic precursor for forming a metal film or pattern and a method of forming the metal film or pattern using the same. More particularly, the present invention provides an organometallic precursor containing a hydrazine-based compound coordinated with a central metal thereof, and a method of forming a metal film or pattern using the same. Further, the present invention provides a composition containing an organometallic compound and a hydrazine-based compound, and a method of forming a metal film or pattern using the same. Additionally, the present invention is advantageous in that a pure metal film or pattern is formed using the organometallic precursor or composition through a simple procedure without limiting atmospheric conditions at a low temperature, and the film or pattern thus formed has excellent conductivity and morphology. Therefore, the film is useful in an electronic device field including flexible displays and large-sized TFT-LCD.Type: ApplicationFiled: October 2, 2003Publication date: September 9, 2004Inventors: Hae Jung Son, Euk Che Hwang, Sang Yoon Lee, Soon Taik Hwang, Byong Ki Yun
-
Publication number: 20040176343Abstract: A series of dynamic platinum compounds for cancer treatment are described. The compounds may become active and inactive reversibly.Type: ApplicationFiled: March 4, 2004Publication date: September 9, 2004Inventor: Jiajiu Shaw
-
Publication number: 20040175387Abstract: The present invention relates to amidomalonate O,O′—Pt and N,O—Pt chelates and methods of preparing them in essentially pure form.Type: ApplicationFiled: February 13, 2004Publication date: September 9, 2004Inventors: Paul Sood, Donald R. Stewart, David P. Nowotnik, Sergiy Victorovych Schevchuk, Kenneth Bruce Thurmond
-
Patent number: 6780947Abstract: Organometallic complex having the formula (IAP)M(X)n which can be used for die formation of catalytic systems wherein: M is a metal selected from transition metals and lanthanides, in oxidation state “s” positive and different from zero; each X is independently a group of an anionic nature bound to the metal as an anion in an ionic couple or with a convalent bond of the “&sgr;” type; “n” expresses the number of X groups sufficient for neutralizing the formal “+s” charge of the metal M, and (IAP) represents a neutral bond consisting of a mono-imine of 2,6-diacylpyridine. Said complex is prepared with relatively simple methods and can be used, combined with a suitable co-catalyst, such as for example, an aluminoxane, as a catalyst in normal (co)polymerization processes of &agr;-olefins, and especially ethylene.Type: GrantFiled: June 12, 2002Date of Patent: August 24, 2004Assignee: Enichem S.p.A.Inventors: Anna Sommazzi, Barbara Milani, Antonio Proto, Gianni Corso, Giovanni Mestroni, Francesco Masi
-
Publication number: 20040162342Abstract: Disclosed are a platinum (II) complex of N-substituted amino dicarboxylate showing antitumor activity represented by the following formula (1) and a preparation method thereof: 1Type: ApplicationFiled: January 8, 2004Publication date: August 19, 2004Applicant: Board of Trustees, EWHA Womans UniversityInventors: Youn Soo Sohn, Yeong-Sang Kim, Rita Song
-
Publication number: 20040158012Abstract: Certain complexes containing ligands having a phosphino group, amino group or an imino group, and a second functional group such as amide, ester or ketone, when complexed to transition metals, catalyze the (co)polymerization of olefinic compounds such as ethylene, &agr;-olefins and/or acrylates. A newly recognized class of ligands for making copolymer containing polar monomers using late transition metal complexes is described.Type: ApplicationFiled: January 20, 2004Publication date: August 12, 2004Inventors: Maurice S. Brookhart, Keith Kunitsky, Weijun Liu, Jon M. Malinoski, Lin Wang, Ying Wang, Lynda Kaye Johnson, Kristina A. Kreutzer, Steven Dale Ittel
-
Patent number: RE38947Abstract: A chiral catalyst is disclosed together with methods of using it for enantioselective syntheses. The chiral catalyst includes a nucleus with two metal atoms that has four bridging ligands oriented radially to the axis of the nucleus. Each of these ligands includes a two complexing atoms each complexed to one of the metal atoms. At least one of the bridging ligands includes a chiral center which is bonded to one of the complexing atoms. Preferably, all four of the bridging ligands include a chiral center bonded to one of the complexing atoms. The catalyst of the invention has been found to be useful in catalyzing carbenoid transformation reactions such as cyclopropanation.Type: GrantFiled: February 14, 1996Date of Patent: January 24, 2006Assignee: Research Corporation Technologies, Inc.Inventor: Michael P. Doyle