Azide Or Acyclic Nitrogen Containing Patents (Class 546/12)
  • Patent number: 6806289
    Abstract: The present invention provides novel coordination complexes, methods for synthesizing and identifying coordination complexes using combinatorial techniques, and assaying for their activity.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: October 19, 2004
    Inventors: Stephen J. Lippard, Christopher J. Ziegler
  • Publication number: 20030144514
    Abstract: Non-symmetrical ligands of formula (I); 1
    Type: Application
    Filed: December 16, 2002
    Publication date: July 31, 2003
    Inventors: Eric Johannes Maria De Boer, Henderikus Hyacinthus Deuling, Harry Van Der Heijden, Nicolaas Meijboom, Aart Bartus Van Oort, Arie Van Zon
  • Patent number: 6562973
    Abstract: Methods for making Group VIII metal bis(imine) complexes are disclosed. Each method uses a single reactor that is equipped with an internal filter to facilitate preparation and purification of the complex under an inert atmosphere. The complexes, which are useful in catalyst systems for olefin polymerization, are prepared in either one or two reaction steps. Surprisingly, the single-reactor approach to preparation and purification enables the efficient preparation of exceptionally high (>90%) yields of desirable Group VIII metal bis(imine) complexes.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: May 13, 2003
    Assignee: Equistar Chemicals, LP
    Inventor: Jia-Chu Liu
  • Patent number: 6548672
    Abstract: A process for producing a transition metal complex of formula (B) wherein M is Fe[II], Fe[III], Co[I], Co[II], Co[III], Mn[l], Mn[II], Mn[III], Mn(IV], Ru[II], Ru[III] or Ru[IV]; X represents an atom or group covalently or ionically bonded to the transition metal M; T is the oxidation state of the transition metal M and b is the valency of the atom or group X; R1, R2, R3, R4, R5, R6 and R7 are independently selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl; and when any two or more of R1-R7 are hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl, the two or more can be linked to form one or more cyclic substituents; comprising reacting together in a single stage reaction components comprising (1) precursors capable of forming Ligand (B) and (2) a compound of the formula M[T]-(T/b
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: April 15, 2003
    Assignee: BP Chemicals Limited
    Inventors: Vernon Charles Gibson, Stuart James McTavish
  • Publication number: 20030018147
    Abstract: A complex of a transition metal complying with the general formula (I) 1
    Type: Application
    Filed: May 20, 2002
    Publication date: January 23, 2003
    Applicant: SOLVAY POLYOLEFINS EUROPE-BELGIUM
    Inventors: Federica Benvenuti, Philipe Francois
  • Patent number: 6500569
    Abstract: Heterocyclic organoaluminum and organoboron coordination complexes that are photoluminescent and electroluminescent, emitting intense blue light. Methods of synthesizing such compounds, methods of producing photoluminescence and electroluminescence, methods of applying the compounds in thin films, and uses of the compounds of the invention in luminescent probes, electroluminescent displays and the like.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: December 31, 2002
    Assignee: Queen's University at Kingston
    Inventors: Suning Wang, Wang Liu, Abdi Hassan
  • Publication number: 20020165365
    Abstract: The present invention relates to a synthetic catalyst of the following formula (A) which can selectively recognize and cleave a specific protein among a protein mixture, and to a method for selective cleavage of a target protein using the same:
    Type: Application
    Filed: April 10, 2002
    Publication date: November 7, 2002
    Applicant: Artzyme Biotech Corporation
    Inventors: Junghun Suh, Sang Jun Son, Jung Bae Song, Chang Eun Yoo, Chul-Seung Jeung, Joongwon Jeon, In Seok Hong
  • Publication number: 20020137934
    Abstract: A new ligands that include a benzene ring in the backbone can be combined with a metal or metal precursor compound or formed into a metal-ligand complex catalyze a number of different chemical transformations, including olefin polymerization reactions. The ligands, complexes formed with the ligands and compositions including the ligands are useful catalysts, depending on the reaction.
    Type: Application
    Filed: September 18, 2001
    Publication date: September 26, 2002
    Applicant: Symyx Technologies
    Inventors: Anil Guram, Cheryl Lund, Howard W. Turner, Tetsuo Uno
  • Patent number: 6417364
    Abstract: Ethylene is polymerized by novel nickel or iron complexes of selected novel 2,2-bipyridine-6-imines, optionally with the addition of other cocatalysts. The polymers are useful for films and molding resins.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: July 9, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Geraldine Marie Lenges
  • Publication number: 20020035031
    Abstract: The present invention relates to a process for the polymerization and copolymerization of 1-olefins and to a catalyst to be used in said process wherein the catalyst comprises (1) a complex having formula (I) wherein M is Fe[II], Fe[III], Co[I], Co[II], Co[III], Mn[I], Mn[II], Mn[III], Mn[IV], Ru[II], Ru[III] or Ru[IV]; X represents an atom or group covalently or ionically bonded to the metal M; T is the oxidation state of the metal; b is the valency of the atom or group X; and R 1 to R 7 are each independently selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl, substituted heterohydrocarbyl or SiR′ 3 where each R′ is independently selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl, substituted heterohydrocarbyl; and when any two or more of R 1 to R 7 are hydrocarbyl, substituted hydrocarbyl, heterohydroc
    Type: Application
    Filed: April 24, 2001
    Publication date: March 21, 2002
    Inventors: Alain Berardi, John Gabriel Speakman
  • Publication number: 20020028351
    Abstract: The invention provides heterocyclic organoaluminum and organoboron coordination complexes that are photoluminescent and electroluminescent, emitting intense blue light. The invention further provides methods of synthesizing such compounds, methods of producing photoluminescence and electroluminescence, methods of applying the compounds in thin films, and uses of the compounds of the invention in luminescent probes, electroluminescent displays and the like.
    Type: Application
    Filed: October 18, 2001
    Publication date: March 7, 2002
    Inventors: Suning Wang, Wang Liu, Abdi Hassan
  • Patent number: 6312835
    Abstract: Heterocyclic organoaluminum and organoboron coordination complexes that are photoluminescent and electroluminescent, emitting intense blue light. Methods of synthesizing such compounds, methods of producing photoluminescence and electroluminescence, methods of applying the compounds in thin films, and uses of the compounds of the invention in luminescent probes, electroluminescent displays and the like.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: November 6, 2001
    Assignee: Queen's University at Kingston
    Inventors: Suning Wang, Wang Liu, Abdi Hassan
  • Publication number: 20010037024
    Abstract: A series of emitting materials used for organic EL based on tridentate ligands are characterized as Formula 1, Formula 2 and Formula 3. where: I is a bidentate ligand such as 8-hydroxyquinoline and 2-(o-hydroxyphenyl)-benzoxazole, II, III are unsubstituted or substituted aryl groups. The substituted groups can have 1-8 carbon atoms, halogen, cyano, amino, amido, sulfonyl, carbonyl, aryl, or heteroalkyl groups. The ligand including II and III is a tridentate ligand with three chelate atoms: two oxygen atoms and one nitrogen atom. The central metal atoms can be trivalent or tetravalent atoms such as Al, In, Ga, Tl, and Sn. These materials can be used as emitting materials or electronic transport materials in organic EL devices.
    Type: Application
    Filed: January 5, 2001
    Publication date: November 1, 2001
    Inventors: Yong Qiu, Yan Shao
  • Patent number: 6278056
    Abstract: A metal complex represented by the formula: (X)nML1L2, (X)2M(L1)2 or (L1)2ML2 wherein M represents a Group VIII metal, X represents a polar group, L1 represents a phenanthroline containing at least one carboxyl group which may be neutralized, L2 represents a nitrogen-containing polycyclic compound which may contain one or more substituents, and n is an integer of 1 or 2. A dye-sensitized oxide semiconductor electrode includes an electrically conductive body, an oxide semiconductor film provided on a surface of the electrically conductive body, and the above metal complex. A solar cell may be constructed from the above dye-sensitized oxide semiconductor electrode, a counter electrode, and a redox electrolyte contacting with both electrodes.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: August 21, 2001
    Assignee: Director-General of Agency of Industrial Science and Technology
    Inventors: Hideki Sugihara, Hironori Arakawa, Kazuhiro Sayama, Lok Pratap Singh, Mohammad Khaja Nazeeruddin, Michael Graetzel
  • Patent number: 6245952
    Abstract: The present invention relates to a process for the preparation of alcohols by reduction of the carbonyl function in substrates belonging to the class of aldehydes, ketones, esters or lactones, which substrates may contain unsaturated functions other than carbonyl. This process includes the steps of reacting the carbonyl substrate with stoichiometric amounts of a silane in the presence of catalytic amounts of an active zinc compound which is monomeric and not a hydride, hydrolyzing the thus-obtained siloxane with a basic agent, and separating and purifying, if necessary, the thus-obtained alcohol. The catalytically active compound is generally obtained by the reaction of an oligomeric or polymeric precursor compound of zinc with a complexing agent.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: June 12, 2001
    Assignee: Firmenich SA
    Inventor: Hubert Mimoun
  • Patent number: 6245988
    Abstract: A photosensitizer complex of formulae (Ia) MX3Lt or (Ib) MXYLt in which M is a transition metal selected from ruthenium, osmium, iron, rhenium and technetium, preferably ruthenium or osmium; each X is a co-ligand independently selected from NCS—, Cl—, Br—, I—, CN—, NCO—, H2O, NCN2−; pyridine unsubstituted or substituted by at least one group selected from vinyl, primary, secondary or tertiary amine, OH and C1-30 alkyl, preferably NCS—; and Lt is a tridentate ligand comprising heterocycles such as pyridine, thiophene, imidazole, pyrazole, triazole, carrying at least one carboxylic, phosphoric, hydoxamic acid or a chelating group. A photovoltaic cell comprising an electrically conductive layer deposited on a support to which at least one titanium dioxide layer has been applied and, as a photosensitizer applied to the titanium dioxide layer, a photosensitizer complex of formula (Ia) or Ib) as specified above.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: June 12, 2001
    Assignee: Ecole Polytechnique Federale de Lausanne
    Inventors: Michael Grätzel, Mohammad Khaja Nazeeruddin, Péter Péchy
  • Patent number: 6077805
    Abstract: Hexacoordinated ruthenium and osmium catalysts of the formulae ##STR1## in which M and M' independently of one another are ruthenium or osmium;X, X', Y and Y' independently of one another are anionic ligands, or X and Y and X' and Y' in each case together are bis-anionic ligandsL.sup.1 and L.sup.1' independently of one another are tertiary phosphine;L.sup.2 and L.sup.3 independently of one another are a monodentate ligand, or L.sup.2 and L.sup.3 together are bidentate, neutral electron donor ligands;L.sup.4 is tetradentate, neutral electron donor ligand;L.sup.5 is a bidentate, neutral electron donor ligand; andT and T' indepedently of one another are H or organic substituents, are useful for the synthesis of custom-tailored polymers and for the ring-closing metathesis of olefins.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: June 20, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Paul Adriaan Van Der Schaaf, Andreas Hafner, Andreas Muhlebach
  • Patent number: 5942616
    Abstract: A metal ion coordinated complex crystal is composed of cation of a nitrogen-containing heterocyclic aromatic compound, anion of triiodine and metal ion. The complex crystal can be used as light-polarizing particles having a stable and strong polarizability which is resistant to ultra violet, an excellent heat resistance, excellent moisture resistance and excellent insolubility.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: August 24, 1999
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Hisato Takeuchi, Azusa Tsukigase, Arimitsu Usuki
  • Patent number: 5886203
    Abstract: A process is provided for the production of metalorganic compounds by reacting a Grignard reagent with a Group II, Group III or Group V metal halide in a tertiary alkyl amine solvent to form a metalorganic adduct, isolating the adduct and dissociating the adduct to leave the metalorganic compound.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: March 23, 1999
    Assignee: Secretary of State For Defence Acting Through His Defence Evaluation & Research Agency
    Inventors: Anthony Copeland Jones, Simon Andrew Rushworth, Trevor Martin, Timothy John Whittaker, Richard William Freer
  • Patent number: 5770591
    Abstract: A bis(platinum) complex having the structure: ##STR1## wherein X, Y, Z, X', Y', and Z' are the same or different ligands and are halide, sulphate, phosphate, nitrate, carboxylate, substituted carboxylate, dicarboxylate, substituted dicarboxylate primary or secondary amine, sulfoxide, phosphine, pyridine-type nitrogen and the like; preferably, there is at least one Pt-anion bond on each Pt molecule; and A is a diamine or polyamine.Complexes of trans geometry ?PtX.sub.2 (L)(L')! where at least L is a planar ligand such as pyridine but preferably quinoline and L' may be amine, sulfoxide or substituted sulfoxide and X is a chloride, nitrate or carboxylate.A process for obtaining bis(platinum) complexes where the two platinum coordination spheres may contain different ligands in each sphere and where the geometry of each platinum coordination sphere may be the same or different.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: June 23, 1998
    Assignee: The University of Vermont and State Agricultural College
    Inventor: Nicholas Farrell
  • Patent number: 5760231
    Abstract: An ion-sensitive calix(4)arene compound having the formula A.sup.2 +B.sup.2- wherein A represents a cation capable of forming a receptor-substrate complex with an anion, and B represents sulfate, nitrate or borate, characterized in that the cation is an anion receptor represented by the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group wherein substituents are selected from alkyl C(O)NH--, aryl C(O)NH--, alkoxy, aryloxy, alkoxycarbonyl, aryloxycarbonyl, alkylsulfonamido, arylsulfonamido, alkylcarbonyl, alkoxycarbonyl, aryloxycarbonyl, cyano and nitro;R.sup.5 and R.sup.6 are each independently H or a lower alkyl group having from 1 to 4 carbon atoms, or R.sup.3 and R.sup.4 taken together represent an ethylene bridging group; and,n is 0 or 1.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: June 2, 1998
    Assignee: Eastman Kodak Company
    Inventors: Trevor John Wear, Christopher Peter Moore, Alistair J. Goulden, Paul D. Beer, Nicholas C. Fletcher
  • Patent number: 5578785
    Abstract: Metal complex compounds having the general formula Me(DADPyOx).sub.x wherein Me stands for a transition metal ion, DADPyOx stands for 2,6-diamino-3,5-dinitropyridine-1-oxide and x represents an integer of 1, 2, 3, or 4. These compounds are useful as insensitive, high-energy explosives.
    Type: Grant
    Filed: July 12, 1995
    Date of Patent: November 26, 1996
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventor: Nikolaus Fiederling
  • Patent number: 5527905
    Abstract: Compounds of formula (I): ##STR1## in which: A and B are separately monoamines or together diamines; and Z is a group of formula (II) or (III): ##STR2## (in which R.sup.1, R.sup.2 and R.sup.7 are various organic groups, n is 0, 1 or 2 and X is a direct carbon-carbon bond or lower alkylene) show valuable anti-tumor activity and may be prepared by reacting an amine-platinum complex with a compound providing the group represented by Z.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: June 18, 1996
    Assignee: Sankyo Company, Limited
    Inventors: Yukio Sugimura, Tomoyuki Shibata, Yukiko Kameyama, Kimio Iino, Shigeki Muramatsu, Tomowo Kobayashi, Toshihiko Hashimoto
  • Patent number: 5496961
    Abstract: Organosilicon compounds having Si-bonded hydrogen atoms are reacted with organic compounds having aliphatic multiple bonds in the presence of triazene oxide-transition metal complexes. The triazene oxide-transition metal complexes are activated by heating at temperatures of from 50.degree. C. to 250.degree. C. and/or by irradiation with light.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: March 5, 1996
    Assignee: Wacker-Chemie GmbH
    Inventors: Jochen Dauth, Josef Wolferseder, Bernward Deubzer
  • Patent number: 5461155
    Abstract: Metal-Azomethine dyes with excellent solubility in organic media. The dyes have an arene nucleus and are substituted, in part, with a non-free-radically polymerizable alkyldiketonate or 8-hydroxyquinolate ligand. The dyes are useful in dye diffusion transfer processes.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: October 24, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Terrance P. Smith, David W. Macomber
  • Patent number: 5426200
    Abstract: Organosiloxanes comprising at least one chemically bonded transition metal complex of Pt, Pd, Rh, Ru, Os or Ir, having a triazene, tetrazene, tetrazdiene, pentazdiene or triazene oxide ligand and are used as hydrosilylation catalysts that can be activated by light and/or heat.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: June 20, 1995
    Assignee: Wacker-Chemie GmbH
    Inventors: Jochen Dauth, Udo Peetz, Bernward Deubzer
  • Patent number: 5306600
    Abstract: Titanocenes of the formula I ##STR1## in which R.sup.1 are cyclopentadienyl.sup..crclbar. groups and R.sup.2 and R.sup.3 are aromatic radicals which are substituted in both ortho-positions by fluorine and, in addition, are substituted by an acyloxy group are suitable as photoinitiators for the photopolymerization of ethylenically unsaturated compounds.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: April 26, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Eginhard Steiner, Harry Beyeler, Martin Riediker, Vincent Desobry, Kurt Dietliker, Rinaldo Husler
  • Patent number: 5278332
    Abstract: New derivatives of cyclohexane in substantially pure form suitable as pharmaceutical, foodstuff or as a stabilizer.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: January 11, 1994
    Assignee: Perstorp AB
    Inventors: Matti Siren, Lars Perrson
  • Patent number: 5274161
    Abstract: New derivatives of cyclohexane in substantially pure form suitable as a pharmaceutical, foodstuff or as a stabilizer.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: December 28, 1993
    Assignee: Perstorp AB
    Inventors: Matti Siren, Lars Perrson
  • Patent number: 5238808
    Abstract: A chemical moiety is disclosed which comprises a chemical, biochemical, or biological substance attached to one or more electrochemiluminescent organometallic compounds. In a preferred embodiment of the invention the substance is attached to one or more ruthenium-containing or osmium-containing luminescent organometallic compounds. Methods are disclosed for detecting very small amounts of the chemical moiety using chemiluminescent, electrochemiluminescent, and photoluminescent means. Compounds are disclosed which are useful for labelling substances of interest with ruthenium-containing and osmium-containing labels or other electrochemiluminescent labels. These labelled substances are useful in methods provided for detecting and quantifying analytes of interest in binding assays and competitive binding assays. The labelled substances are of particular use in homogeneous binding assays.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: August 24, 1993
    Assignee: Igen, Inc.
    Inventors: Allen J. Bard, George M. Whitesides
  • Patent number: 5221605
    Abstract: A chemical moiety is disclosed which comprises a chemical biochemical, or biological substance attached to one or more electrochemiluminescent organometallic compounds. In a preferred embodiment of the invention the substance is attached to one or more ruthenium-containing or osmiumcontaining luminescent organometallic compounds. Methods are disclosed for detecting very small amounts of the chemical moiety using chemiluminescent, electrochemiluminescent, and photoluminescent means. Compounds are disclosed which are useful for labelling substances of interest with ruthenium-containing and osmium-containing labels or other electrochemiluminescent labels. These labelled substances are useful in methods provided for detecting and quantifying analytes of interest in binding assays and competitive binding assays. The labelled substances are of particular use in homogeneous binding assays.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: June 22, 1993
    Assignee: Igen, Inc.
    Inventors: Allen J. Bard, George M. Whitesides
  • Patent number: 5192642
    Abstract: Titanocenes of the formula I ##STR1## in which R.sup.1 are cyclopentadienyl.sup..crclbar. groups and R.sup.2 and R.sup.3 are aromatic radicals which are substituted in both ortho-positions by fluorine and, in addition, are substituted by an acyloxy group are suitable as photoinitiators for the photopolymerization of ethylenically unsaturated compounds.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: March 9, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Eginhard Steiner, Harry Beyeler, Martin Riediker, Vincent Desobry, Kurt Dietliker, Rinaldo Husler
  • Patent number: 5151515
    Abstract: A supported metal catalyst useful in the preparation of an electrode for an electrochemical cell comprises the residue after pyrolysis of an organometallic complex which is the reaction product of a transition metal salt or noble metal salt and at least one of 2,2' dipyridylamine or substituted derivative thereof.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: September 29, 1992
    Assignee: The Dow Chemical Company
    Inventor: Alan J. Cisar
  • Patent number: 5100886
    Abstract: A metal complex having the general formula (I): ##STR1## wherein R.sup.1 is C.sub.1-4 alkoxy, C.sub.1-4 haloalkoxy, or C.sub.2-4 alkenyloxy; R.sup.2 is hydrogen or cyano; R.sup.3 is hydrogen or methyl; X is oxygen or sulphur; M.sub.p Y.sub.q is a transition metal salt wherein M is a transition metal cation, Y is an anion and p and q are independently 1, 2 or 3 according to valency requirements; and n is 1 or 2. The metal complexes of formula (I) are active as fungicides.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: March 31, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventors: David Seaman, Ian R. Matthews, Neal R. Bird
  • Patent number: 4992553
    Abstract: A compound of the general formula: ##STR1## wherein R.sub.1 is hydrogen, a hydroxy group or a C.sub.2 -C.sub.6 alkanoyloxy group, R.sub.2 is hydrogen or a halogen atom, R.sub.3 is hydrogen or a C.sub.1 -C.sub.6 alkyl group, R.sub.4 is a hydroxy group or a C.sub.2 -C.sub.6 alkanoyloxy group, R.sub.5 is hydrogen or a halogen atom and R.sub.6 is hydrogen or a halogen atom, Alk is a C.sub.2 -C.sub.10 alkylene chain where 4 neighboring CH.sub.2 groups may also be replaced by a 1,4-phenylene ring, A-B is the group HN--CH.sub.2 --CH.sub.2 --NH.sub.2, H.sub.2 N--CH.sub.2 --CH--CH.sub.2 --NH.sub.2 or ##STR2## and R.sub.7 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group or a phenyl radical and X stands for the equivalent of a physiologically acceptable anion. The compound is useful for the treatment of hormone dependent tumors.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: February 12, 1991
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Erwin von Angerer, Norbert Knebel, Helmut Schonenberger, Jurgen Engel
  • Patent number: 4963470
    Abstract: Titanocenes with silylated .pi.-cyclopentadienyl ligands in which one or two carbo- or heterocyclic aromatic rings are bonded to the titanium, the aromatic rings being substituted by fluorine, --CF.sub.3, --C.sub.2 F.sub.5, --CF.sub.2 CL or --CF.sub.2 CH.sub.3 in at least one of the two ortho-positions relative to the metal-carbon bonds, are suitable as photoinitiators for the photopolymerization of ethylenically unsaturated substrates. They are distinguished by a high sensitivity, stability to air and the action of heat, and a high activity in the region of UV light to visible light. They are furthermore readily soluble in the photopolymerizable compositions.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: October 16, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Bernd Klingert, Franciszek Sitek, Manfred Rembold
  • Patent number: 4959135
    Abstract: Methods and apparatus for the extraction of a ligand such as molecular oxygen from a first fluid environment and for release of a ligand such as molecular oxygen, as well as ligand carrier compounds therefor comprising linear, pentadentate polyalkylamines and transition metal ions. The carrier compounds have the general formula: ##STR1## where, each of R.sub.1 and R.sub.2 is independently an organic group including a sulfur, an oxygen or a nitrogen coordinated to M;each of m, n, o, and p is 1, 2, 3, or 4;X is selected from the group consisting of 2,6-pyridyl, 2,6-piperidyl, 2,5-pyrrolyl, 2,4-imidazolyl, substituted heterocyclic amines, --)--, --S--, ##STR2## and ##STR3## where R.sub.3 is hydrogen, lower alkyl or aralkyl; and M is a transition metal ion.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: September 25, 1990
    Assignee: Aquanautics Corporation
    Inventors: Bruce D. Zenner, Joseph P. Ciccone, Emory S. De Castro, Larrie A. Deardurff, John B. Kerr
  • Patent number: 4954592
    Abstract: Optically active compounds of the formula I ##STR1## in which R.sup.1 is C.sub.1 -C.sub.4 -alkyl, phenyl or benzyl, R.sup.2 is a radical of the formula II or IIa ##STR2## in which R.sup.3 is H or --CH.sub.3, or R.sup.1 and R.sup.2 together form a radical of the formula ##STR3## in which R.sup.2 has the meaning given above; and * represents predominantly R or predominantly S configuration.The compounds can be polymerized to give homopolymers or copolymers. The compounds and the polymers can be complexed with iridium(I) salts in the presence of a diene. The complexes are suitable as enantioselective catalysts.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: September 4, 1990
    Assignee: Ciba-Geigy Corporation
    Inventor: Jurgen Kaschig
  • Patent number: 4937358
    Abstract: This disclosure sets forth a novel process for producing cisplatin analogs which possess antitumor activity.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: June 26, 1990
    Assignee: American Cyanamid Company
    Inventors: Panayota Bitha, Joseph J. Hlavka, Yang-I Lin
  • Patent number: 4891412
    Abstract: Optically active compounds of the formula I ##STR1## in which R.sup.1 is C.sub.1 -C.sub.4 -alkyl, phenyl or benzyl, R.sup.2 is a radical of the formula II or IIa ##STR2## in which R.sup.3 is H or --CH.sub.3, or R.sup.1 and R.sup.2 together form a radical of the formula ##STR3## in which R.sup.2 has the meaning given above; and * represents predominantly R or predominantly S configuration.The compounds can be polymerized to give homopolymers or copolymers. The compounds and the polymers can be complexed with iridium(I) salts in the presence of a diene. The complexes are suitable as enantioselective catalysts.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: January 2, 1990
    Assignee: Ciba-Geigy Corporation
    Inventor: Jurgen Kaschig
  • Patent number: 4855432
    Abstract: Optically active iridium complexes of the formula ##STR1## in which R is methyl and R.sup.1 is a hydrocarbon radical having at least one chiral C atom or a hydrocarbon radical containing at least one hetero atom and having at least one chiral C atom; or R is a hydrogen atom and R.sup.1 is 1,2-diphenylethyl or a 5-membered or 6-membered cycloaliphatic or cycloheteroaliphatic radical having at least two chiral C atoms and a phenyl group or alkyl group in the .alpha.-position, X.sup..crclbar. is an anion of a monobasic inorganic or organic acid and Y and Z are each ethylene, or Y and Z together represent an open-chain or cyclic diene which has 6 to 10 C atoms and whose diene groups are bonded via 1 or 2 C atoms.They are suitable as enantioselective, homogeneous catalysts for the transfer hydrogenation of, in particular, prochiral ketones with secondary alcohols.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: August 8, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Jurgen Kaschig
  • Patent number: 4851534
    Abstract: Optically active iridium complexes of the formula I and mixtures of the diastereomers ##STR1## in which R.sup.1 and R' are H and A is a radical of the formula II, IIa or IIb ##STR2## or R.sup.1 and R' represent a bond and A is a radical of the formula IIc ##STR3## in which R.sup.2 is --H or --CH.sub.3, X.sup..crclbar. is an anion of an inorganic or organic acid, Y and Z are each ethylene, or Y and Z together represent an open-chain or cyclic diene having 6-10 C atoms, whose double bonds are separated by one or two C atoms, and R is a hydrocarbon radical having at least one chiral C atom or a hydrocarbon radical having at least one hetero atom and at least one chiral C atom, or A is a radical of the formula II, IIa or IIb and R is phenyl, naphthyl, 2-methylphen-1-yl or 2,6-dimethylphen-1-yl. The complexes are suitable as enantioselective catalysts.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: July 25, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Jurgen Kaschig
  • Patent number: 4837326
    Abstract: New Cobalt (II) nitrilomethylidyne dipyrrole complexes such as Cobalt (II) 2,2'-[trimethylenebis(nitrilomethylidyne)]-dipyrrole, Cobalt(II) 2,2'[o-phenylenebis(nitrilomethylidyne)]-dipyrrole and their basic ligand complexes are effective catalysts for molecular weight control in acrylate/methacrylate polymerization. The Cobalt (II) complex of a nitrilomethylidyne dipyrrole comprises the structure: ##STR1## where R is a diradical selected form trimethylene bis-, o-phenylenebis, or ethylenebis.The process comprises polymerizing monomers, especially including methacrylic monomer or methacrylic/acrylic monomer, in the presence of azo initiator and between 0.0001% and 0.01% of Cobalt (II) 2,2'-[trimethylenebis (nitrilomethylidyne)]-dipyrrole and/or Cobalt (II) 2,2'-[-phenylenebis (nitrilomethylidyne]-dipyrrole complexes to produce low molecular weight acrylate polymers and copolymers.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: June 6, 1989
    Assignee: The Glidden Company
    Inventors: Ju-Chui Lin, Kirk J. Abbey
  • Patent number: 4812586
    Abstract: A method of preparing high purity dimethyl cadmium or dimethyl zinc suitable for use in the deposition of Group II-VI epitaxial layers, which consists of forming an adduct of the metal alkyl with a non-chelating tertiary amine containing at least two tertiary amino groups per amine molecule, and subsequently dissociating the adduct to liberate the metal alkyl as a vapor. The adducts formed during the preparative method are found to dissociate readily on heating and yet are substantially involatile and so do not contaminate the liberated metal alkyl. A preferred amine suitable for use in the preparative method is 4,4' bipyridyl.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: March 14, 1989
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: John B. Mullin, John C. Hamilton, Elisabeth D. Orrell, Philip R. Jacobs, Deodattta V. Shenai-Khatkhate
  • Patent number: 4800224
    Abstract: Optically active compounds of the formula I ##STR1## in which R.sup.1 is C.sub.1 -C.sub.4 -alkyl, phenyl or benzyl, R.sup.2 is a radical of the formula II or IIa ##STR2## in which R.sup.3 is H or --CH.sub.3, or R.sup.1 and R.sup.2 together form a radical of the formula ##STR3## in which R.sup.2 has the meaning given above; and * represents predominantly R or predominantly S configuration.The compounds can be polymerized to give homopolymers or copolymers. The compounds and the polymers can be complexed with iridium(I) salts in the presence of a diene. The complexes are suitable as enantioselective catalysts.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: January 24, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Jurgen Kaschig
  • Patent number: 4659829
    Abstract: The invention concerns peroxide complexes of metals complying with the general formula LnMXpY, wherein M is a metal selected from groups VIII, IB and VIIB, particularly cobalt, X is an anionic group, for example carboxylate, R is an alkyl, cycloalkyl or arylalkyl group, n=1 or 2, p=0 or 1 and n+p=2.L is a tridentated ligand from the group of 1,3 bis (2-pyridylimino) isoindolines.These complexes are obtained by reaction of a hydroperoxide ROOH with a complex of formula LnMXp. They can be used in oxidizing hydrocarbons to a mixture of alcohols and ketones, either as reactants or as catalysts.They are particularly useful to prepare tert-butanol by oxidation of isobutane in liquid phase, by means of an oxygen-containing gas such as air.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: April 21, 1987
    Assignee: Institut Francais du Petrole
    Inventors: Lucien Saussine, Alain Robine, Hubert Mimoun
  • Patent number: 4551502
    Abstract: Novel complexes are prepared from water-soluble compounds having at least one amidocarbonylic unit and a square planar organometallic compound.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: November 5, 1985
    Inventors: Bobby A. Howell, Erik W. Walles
  • Patent number: 4550169
    Abstract: This disclosure describes platinum chelates of 2-hydrazino-1-aza (or 1,3-diaza,1-oxa-3-aza or 1-thia-3-aza)-1-cyclo-alkenes which possess activity as antitumor agents.
    Type: Grant
    Filed: November 21, 1983
    Date of Patent: October 29, 1985
    Assignee: American Cyanamid Company
    Inventors: Joseph J. Hlavka, Panayota Bitha, Yang-I Lin
  • Patent number: 4529804
    Abstract: 1:2 Nickel or 1:2 copper complexes of a naphthostyril of the formula ##STR1## or of tautomers thereof, in which A, X and Y are as defined in claim 1, are suitable for pigmenting high molecular weight organic material.
    Type: Grant
    Filed: June 13, 1983
    Date of Patent: July 16, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Christoph Frey, Franz Felix
  • Patent number: 4394156
    Abstract: The present invention relates to novel active compounds having a plant growth-inhibiting and herbicidal action and their preparation and to agents containing these active ingredients, and their use.The novel active compounds are saturated and unsaturated 4-membered to 7-membered ring nitrogen heterocyclic compounds which are substituted on the nitrogen atom by a phenyl radical which itself carries a trifluoromethanesulphonamido group -NH-SO.sub.2 -CF.sub.3 as a substituent. The phenyl radical can also carry other substituents and the heterocyclic structure can also be substituted. Oxo derivatives of the heterocyclic compound, in which the oxo group is preferably adjacent to the nitrogen atom, form a preferred sub-group of compounds.
    Type: Grant
    Filed: October 26, 1981
    Date of Patent: July 19, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Tobler, Werner Fory, Rolf Schurter