Chalcogen Bonded Directly To The Metal Patents (Class 556/146)
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Patent number: 6262258Abstract: Wurster's crown ligands comprise a macrocyclic ligand such as a crown ether in which a hetero atom is substituted with a 1,4-phenylenediamine group. The phenylenediamine group is covalently bound to the macrocyclic ligand by one or both of the amine nitrogens, the amine nitrogen thereby substituting for the hetero atom of the macrocyclic ligand. The resulting compounds are redox active. Methods of making and using the compounds are also disclosed.Type: GrantFiled: September 7, 1999Date of Patent: July 17, 2001Assignee: East Carolina UniversityInventor: John W. Sibert
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Patent number: 6245988Abstract: 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: GrantFiled: November 2, 1999Date of Patent: June 12, 2001Assignee: Ecole Polytechnique Federale de LausanneInventors: Michael Grätzel, Mohammad Khaja Nazeeruddin, Péter Péchy
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Patent number: 6242623Abstract: Novel compositions and metal compounds having an ancillary ligand structure polymerize monomers and functionalized monomers, either alone or in the presence of an activator. The ancillary ligand structure is a chelating ligand that may optionally be further bound to the metal via a dative or covalent bond.Type: GrantFiled: July 20, 1998Date of Patent: June 5, 2001Assignee: Symyx Technologies, Inc.Inventors: Thomas Boussie, Vince Murphy, Johannes A. M. van Beek
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Patent number: 6221285Abstract: The preparation of organomagnesium compounds from organic halides, especially aromatic chloro compounds, and magnesium metal in the presence of a transition metal compound as a catalyst.Type: GrantFiled: June 19, 2000Date of Patent: April 24, 2001Assignee: Studiengesellschaft Kohle mbHInventors: Borislav Bogdanović, Manfred Schwickardi
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Patent number: 6197984Abstract: A method of preparing amorphous copolymers of ethylene and at least one norbornene (NB)-type comonomer is disclosed. These polymers may be random or alternating depending on the choice of catalyst and/or the relative ratio of the monomers used. This method comprises polymerizing said monomers in a diluent or in bulk in the presence of a neutral nickel catalyst which may be represented by the formula wherein Y may be a saturated or unsaturated hydrocarbyl chain, X may be oxygen or sulfur, E may be phosphorus, arsenic, antimony, oxygen or nitrogen, R and R′ independently each is hydrogen or a hydrocarbyl group, L is a ligand containing a heteroatom P, N or O or L and R together with L may form part of a chelating structure in which case L is an ethylenic double bond.Type: GrantFiled: May 6, 1999Date of Patent: March 6, 2001Assignees: The B. F. Goodrich Company, A.V. Topchiev Institute of Petrochemical SynthesisInventors: Kiryll Lvovich Makovetsky, Eugeny Shmerovich Finkelshtein, Viktor Ivanovich Bykov, Andrey Khristoforovich Bagdasaryan, Larry Funderburk Rhodes
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Patent number: 6184403Abstract: Chemical vapor deposition processes utilize as precursors volatile metal complexes with ligands containing metalloid elements silicon, germanium, tin or lead.Type: GrantFiled: May 19, 1999Date of Patent: February 6, 2001Assignee: Research Foundation of State University of New YorkInventors: John T. Welch, Paul J. Toscano, Rolf Claessen, Andrei Kornilov, Kulbinder Kumar Banger
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Patent number: 6136222Abstract: Nitrogen-absorbing and -desorbing compositions, novel ligands and transition metal complexes, and methods of using the same, which are useful for the selective separation of nitrogen from other gases, especially natural gas.Type: GrantFiled: April 11, 1996Date of Patent: October 24, 2000Assignee: Bend Research, Inc.Inventors: Dwayne T. Friesen, Walter C. Babcock, David J. Edlund, David K. Lyon, Warren K. Miller
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Patent number: 6136224Abstract: A gas generant for an air, which is improved in the defects of gas generants using sodium azide in a practical use and has stable combustion capability. And a molecular compound comprising (a) a gas generant component, (b) an oxidant component and (c) a reaction accelerator component, preferably represented by the composition formula (I).M.mX.nY (I)[wherein, M is Al Mg, Ca, Cr, Cu, Zn, Mn, Fe, Co, Sr, Ni and another metal components; X is a nitrogen-containing compound having 0 or 1 carbon atom; Y is an anion such as NO.sub.3 and ClO; m is a number of 1 to 3; and n is a number 2 to 3].Type: GrantFiled: August 28, 1996Date of Patent: October 24, 2000Assignee: Daicel Chemical Industries, Ltd.Inventors: Jianzhou Wu, Norimasa Hirata, Takushi Yokoyama
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Patent number: 6124476Abstract: The present invention discloses new organic compounds (e.g., ligands), their metal complexes and compositions using those compounds. The invention also relates to the field of catalysis. In particular, this invention relates to new compounds which when combined with suitable metals or metal precursor compounds provide useful catalysts for various bond-forming reactions, including Suzuki cross-coupling reactions. The invention also relates to performing Suzuki cross coupling reactions with unreactive aryl-chlorides.Type: GrantFiled: February 18, 1999Date of Patent: September 26, 2000Assignee: Symyx Technologies, Inc.Inventors: Anil Guram, Xiaohong Bei, Timothy S. Powers, Bernd Jandeleit, Thomas Crevier
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Patent number: 6071908Abstract: A method of treating neoplastic disease wherein a patient in need of such treatment is administered an effective amount of a radiation-activated cytotoxin prodrug (RACP) which has low toxicity, which is reducible by reducing agents generated by the radiolysis of water and which, upon reduction, releases a sufficient amount of a cytotoxic effector of sufficient cytotoxic potency to kill tumor cells. The tumor cells are irradiated with ionizing radiation to reduce the prodrug which is present at the locus of the tumor cells to release the cytotoxic effector.Type: GrantFiled: May 7, 1998Date of Patent: June 6, 2000Assignee: Auckland Uniservices LimitedInventors: William A. Denny, Moena Tercel, William R. Wilson
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Patent number: 6008190Abstract: The invention relates to novel cobalt compounds, having a general structure ##STR1## wherein Co is either Co(II) or Co(III), and each of the R groups is selected from the group consisting of hydrogen, alkyl, hydrophilic organic acid, alkyl amine, amine, alkyl alcohol, alcohol, polypeptide or nucleic acid. The invention further relates to methods of using such compounds to reduce the biological activity of proteins, particularly enzymes and zinc finger-containing proteins.Type: GrantFiled: December 12, 1995Date of Patent: December 28, 1999Assignee: California Institute of TechnologyInventors: Thomas J. Meade, Toshihiko Takeuchi, Harry B. Gray, Melvin Simon, Angelique Y. Louie
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Patent number: 6002031Abstract: Metal alkoxyalkoxidecarboxylates wherein the alkoxy portion has 2-6 carbon atoms and the alkoxide portion has 2-6 carbon atoms are provided and are useful in forming films on a substrate.Type: GrantFiled: September 4, 1998Date of Patent: December 14, 1999Assignee: International Business Machines CorporationInventors: Peter Richard Duncombe, Deborah Ann Neumayer
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Patent number: 5977392Abstract: Catalyst component for the polymerization of alpha-olefins of general formula (I) ##STR1## wherein: M is a transition metal of groups 3, 4-10, lanthanide or actinide of the periodic table of the elements; A is a ring with delocalized .pi. electrons, L is a neutral Lewis base; m is an integer whose value can be: 0 or 1; E is selected from the group comprising: BR.sup.II, CR.sup.II.sub.2, SiR.sup.II.sub.2, GeR.sup.II.sub.2 ; Hal is selected from the group comprising iodine, bromine or chlorine; R.sup.III has the same meaning of R.sup.II ; Si is a silicon atom; D is selected from the group comprising: O, S, NR.sup.IV, PR.sup.IV, OR.sup.IV, SR.sup.IV, NR.sup.IV.sub.2, PR.sup.IV.sub.2 ; each X group equal to or different from each other is selected from the group comprising hydrogen, halide, alkyl, cycloalkyl, aryl, alkenyl, arylallyl, arylalkenyl or alkylaryl with 1 to 20 carbon atoms, n is a number whose value can be: 0, 1, 2 or 3, in order to full the remaining valences of metal M.Type: GrantFiled: October 30, 1997Date of Patent: November 2, 1999Assignee: Respol Quimica S.A.Inventors: Jose Sancho Royo, Antonio Munoz-Escalona Lafuente, Begona Pena Garcia, Carlos Martin Marcos
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Patent number: 5962654Abstract: Metal alkoxyalkoxides wherein the alkoxy portion has 3-6 carbon atoms and the alkoxide portion has 2-6 carbon atoms are provided and are useful in forming films on a substrate.Type: GrantFiled: January 30, 1998Date of Patent: October 5, 1999Assignee: International Business Machines OperationInventors: Peter Richard Duncombe, Deborah Ann Neumayer
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Patent number: 5886032Abstract: A method of treating an animal having a condition associated with the presence of cyanide in quantities sufficient to cause undesirable symptoms which comprises administering to the subject a compound in an amount effective to alleviate the undesirable symptoms, the compound having the structure: ##STR1## wherein R.sup.1 and R.sup.1' are the same or different and each is an alkyl group, a phenyl group or a substituted derivative of a phenyl group;R.sup.2 and R.sup.2' are the same or different and each is hydrogen, an unbranched alkyl group, a halide or a group having the structure R--C-- ##STR2## wherein R is hydrogen, an alkoxide group, and alkyl group or OH; R.sup.3 and R.sup.3' are the same or different and each is hydrogen or an alkyl group;X and X' are the same or different and each is a water-soluble group having weak to intermediate field strength; andQ.sup.- is a soluble, pharmaceutically acceptable negative ion.Type: GrantFiled: January 27, 1998Date of Patent: March 23, 1999Assignee: Redox Pharmaceutical CorporationInventors: David Gershon, Uri Taitelman
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Patent number: 5850086Abstract: A bleach and oxidation catalyst is provided comprising a catalytically active iron complex which can activate hydrogen peroxide or peroxy acids, for example.Type: GrantFiled: June 21, 1996Date of Patent: December 15, 1998Assignee: Regents of the University of MinnesotaInventors: Lawrence Que, Jr., Cheal Kim, Jinheung Kim, Yan Zang
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Patent number: 5756790Abstract: The invention provides a method for preparing an optically active alcohol comprising the step of reacting a ketone compound with a hydride reagent in the presence of an optically active metal compound. The resulting optically active alcohols are useful as intermediates for the synthesis of physiologically active compounds such as drugs and pesticides, functional materials such as liquid crystals, and raw materials for synthesis in fine chemistry. A novel optically active cobalt (II) complex useful as a catalyst is also provided.Type: GrantFiled: September 27, 1996Date of Patent: May 26, 1998Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Teruaki Mukaiyama, Kiyotaka Yorozu, Takushi Nagata, Toru Yamada, Kiyoaki Sugi
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Patent number: 5753698Abstract: A method of treating a subject having a condition associated with the presence of cyanide in quantities sufficient to cause undesirable symptoms which comprises administering to the subject a compound in an amount effective to alleviate the undesirable symptoms, the compound having the structure: ##STR1## wherein R.sup.1 and R.sup.1' are the same or different and each is an alkyl group, a phenyl group or a substituted derivative of a phenyl group;R.sup.2 and R.sup.2' are the same or different and each is hydrogen, an unbranched alkyl group, a halide or a group having the structure ##STR2## wherein R is hydrogen, an alkoxide group, and alkyl group or OH; R.sup.3 and R.sup.3' are the same or different and each is hydrogen or an alkyl group;X and X' are the same or different and each is a water-soluble group having weak to intermediate field strength; andQ.sup.-- is a soluble, pharmaceutically acceptable negative ion.Type: GrantFiled: October 4, 1996Date of Patent: May 19, 1998Assignee: Redox Pharmaceutical CorporationInventors: David Gershon, Uri Taitelman
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Patent number: 5693837Abstract: This invention relates to improved hydrocarbon gels which find use in the fracturing of petroleum producing formations. In particular it relates to the use of a defined class of gelling agents for hydrocarbons which provide excellent results in such fracturing. The gelling agents comprise combinations of selected orthophosphate esters and ferric ammonium citrate or lower alkyl amine derivative thereof. The lower alkyl amine derivatives are referred to as ferric alkylamine citrates.Type: GrantFiled: July 22, 1996Date of Patent: December 2, 1997Assignee: Clearwater, Inc.Inventors: Kevin W. Smith, Leonard J. Persinski
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Patent number: 5670679Abstract: A process is disclosed for the manufacture of product compounds of the formula HC(R.sup.1).sub.2 C(R.sup.1).sub.2 C(R.sup.2).sub.2 C(R.sup.2).sub.2 H wherein each R.sup.1 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f C(O)R.sup.f and OC(O)R.sup.f where R is a hydrocarbyl group and R.sup.f is a C.sub.1 to C.sub.10 polyfluoroalkyl group, provided that at least one R.sup.1 is F, and wherein each R.sup.2 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f, C(O)R.sup.f, OC(O)R.sup.f and difunctional linkages where an R.sup.2 group on each of two adjacent carbon atoms together form a link selected from the group consisting of --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH(CH.sub.3 --, --CH.sub.2 CH(CH.sub.3)CH.sub.2 --, --C(O)OC(O)--, and norborndiyl.Type: GrantFiled: June 2, 1995Date of Patent: September 23, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Ralph Thomas Baker, Richard Paul Beatty, William Brown Farnham, Robert Lewis Wallace, Jr.
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Patent number: 5602267Abstract: Asymmetric synthesis using a novel catalyst comprising the formula: ##STR1## and which has utility in areas such as epoxidation of olefins.Type: GrantFiled: May 26, 1995Date of Patent: February 11, 1997Assignee: Hoechst CelaneseInventor: Shu-Hai Zhao
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Patent number: 5599963Abstract: The invention relates to catalysts for the synthesis of .beta.-hydroxy carbonyl compounds, and in particular to enantioselective catalysts.Type: GrantFiled: March 29, 1995Date of Patent: February 4, 1997Assignee: California Institute of TechnologyInventors: Erick M. Carreira, Robert A. Singer
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Patent number: 5587395Abstract: The present invention provides a complex compound having the structure: ##STR1## wherein R.sub.1 and R.sub.1' are the same or different and each is an alkyl group, a phenyl group or a substituted derivative of a phenyl group;wherein R.sub.2 and R.sub.2' are the same or different and each is hydrogen, an unbranched alkyl group, a halide or a group having the structure ##STR2## wherein R is hydrogen, an alkoxide group, an alkyl group, or OH; wherein R.sub.3 and R.sub.3' are the same or different and each is hydrogen or an alkyl group;wherein X and X' are the same or different and each is a water soluble group having weak to intermediate ligand field strength; andQ is a soluble, pharmaceutically acceptable negative ion.The invention also provides a method of treating a subject having a condition associated with the presence of free radicals in quantities sufficient to cause undesirable symptoms.Type: GrantFiled: April 25, 1995Date of Patent: December 24, 1996Assignee: Chai-Tech CorporationInventors: Zvi Dori, David Gershon
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Patent number: 5565594Abstract: Compounds of formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.8 alkyl, phenyl or phenyl which is substituted by 1 to 3 C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy groups; R.sub.2 and R.sub.3 are each independently of the other typically C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl, or C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.5 -C.sub.12 cycloalkyl, or phenyl which is substituted by one to three identical or different members selected from the group consisting of C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen; R.sub.10 and R.sub.11 are identical and are typically C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.5 -C.sub.12 cycloalkyl or phenyl which is substituted by 1 to 3 identical or different members selected from the group consisting of C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen; or R.sub.10 and R.sub.11 are different and are C.sub.1 -C.sub.Type: GrantFiled: June 5, 1995Date of Patent: October 15, 1996Assignee: Ciba-Geigy CorporationInventors: Felix Spindler, Amina Wirth-Tijani, Heidi Landert
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Patent number: 5563309Abstract: Compounds of formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.8 alkyl, phenyl or phenyl which is substituted by 1 to 3 C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy groups; R.sub.2 and R.sub.3 are identical and are C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl or C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.5 -C.sub.12 cycloalkyl, or phenyl which is substituted by one to three identical or different members selected from the group consisting of C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy,--SiR.sub.4 R.sub.5 R.sub.6, halogen, --SO.sub.3 M,--CO.sub.2 M,--PO.sub.3 M,--NR.sub.7 R.sub.8 and --[.sup..sym. NR.sub.7 R.sub.8 R.sub.9 ]X.sup..crclbar. ; or R.sub.1 and R.sub.3 are different and are C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.5 -C.sub.12 cycloalkyl, phenyl or phenyl which is substituted by one to three identical or different members selected from the group consisting of C.sub.1 -C.Type: GrantFiled: June 2, 1995Date of Patent: October 8, 1996Assignee: Ciba-Geigy CorporationInventors: Antonio Togni, Felix Spindler, Nadia Zanetti, Amina Tijani
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Patent number: 5563308Abstract: Compounds of formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.8 alkyl, phenyl or phenyl which is substituted by 1 to 3 C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy groups; R.sub.2 and R.sub.3 are each independently of the other typically C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl, or C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.5 -C.sub.12 cycloalkyl, or phenyl which is substituted by one to three identical or different members selected from the group consisting of C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen;R.sub.10 and R.sub.11 are identical and are typically C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.5 -C.sub.12 cycloalkyl or phenyl which is substituted by 1 to 3 identical or different members selected from the group consisting of C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen; or R.sub.10 and R.sub.11 are different and are C.sub.1 -C.sub.Type: GrantFiled: June 5, 1995Date of Patent: October 8, 1996Assignee: Ciba-Geigy CorporationInventors: Felix Spindler, Amina Wirth-Tijani, Heidi Landert
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Patent number: 5523438Abstract: Metal-fullerene intercalation compounds, process for their preparation and use as catalystsTransition metal-fullerene intercalation compounds and a process for the preparation thereof by reaction of transition metal compounds with fullerenes or fullerene-containing carbon black with activation in a solvent.Type: GrantFiled: July 21, 1994Date of Patent: June 4, 1996Assignee: Hoechst AktiengesellschaftInventors: Robert Schlogl, Harald Werner, Michael Wohlers
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Patent number: 5510470Abstract: A chiral, bidentate organophosphorus ligand containing a dideoxysaccharide used along with zero valent nickel as a catalyst for enantioselective hydrocyanation. The preferred organophosphorus ligand species is phenyl 2,3-bis-O-(3,5-bis(trifluoromethyl)phenyl)phosphine-4,6-O-benzylidene-B-D- glucopyranoside.Type: GrantFiled: April 19, 1995Date of Patent: April 23, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Albert L. Casalnuovo, Thaliyil V. Rajanbabu
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Patent number: 5508458Abstract: A novel catalyst comprising the formula: ##STR1## and which has utility in areas such as epoxidation of olefins.Type: GrantFiled: May 26, 1995Date of Patent: April 16, 1996Assignee: Hoechst Celanese CorporationInventor: Shu-Hai Zhao
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Patent number: 5484902Abstract: A composition for the enantioselective hydrocyanation of aromatic vinyl compounds comprising zero valent nickel and a chiral, nonracemic, bidentate organophosphorus ligand. The preferred organophosphorus ligand species is phenyl 2,3-bis-O-(3,5-bis(tri-fluoromethyl)phenyl)phosphino-4,6,0-benzilidene-B-D -glucopy-anoside as shown below.Type: GrantFiled: February 25, 1994Date of Patent: January 16, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Albert L. Casalnuovo, Thaliyil V. Rajanbabu
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Patent number: 5481039Abstract: Compositions comprisinga) a functional liquid or an internal combustion engine fuel andb) at least one compound of the general formula I ##STR1## wherein R.sub.1 is --(CH.sub.2 --X).sub.n R, where X=--S-- or --O--, n=0 or 1 to 18 carbon atoms, a phenyl group, a phenyl group which is substituted by at least one C.sub.1 -C.sub.18 alkyl group, a phenyl-C.sub.1 -C.sub.4 alkyl group or a phenyl-C.sub.1 -C.sub.4 alkyl group which is substituted by at least one C.sub.1 -C.sub.4 alkyl group, or R.sub.1 is an alkyl group of 1 to 18 carbon atoms which is substituted by at least one OH group, or R.sub.1 is a ##STR2## group in which the alkyl moiety contains 1 to 18 carbon atoms, and R.sub.2 and R.sub.3 are the same or different and are --H or, independently of R.sub.1, have the same meanings as R.sub.1, and M is B, Al, Fe, Cr, Sb or Bi, or M is a group M'--R' or a group M'--OR", where M' is Ti, Zr or Sn, and R' and R" is C.sub.1 -C.sub.18 alkyl or R' is ##STR3## wherein M' is defined above, and R.sub.1 ', R.sub.Type: GrantFiled: October 21, 1994Date of Patent: January 2, 1996Assignee: Ciba-Geigy Corp.Inventors: Hermann O. Wirth, Hans-Helmut Friedrich
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Patent number: 5463099Abstract: An extractant for selectively extracting strontium from an aqueous solution containing the same, which comprises a 1,2-benzenebis(1,4-dioxanonyl-6,8-dionato)metal complex of the following structural formula: ##STR1## wherein M represents a metal ion of Cu (II), Zn (II) or Ni (II).Type: GrantFiled: February 23, 1995Date of Patent: October 31, 1995Assignee: Doryokuro Kakunenryo Kaihatsu JigyodanInventors: Yoshiaki Kobuke, Akio Togashi, Masaki Ozawa, Masayuki Watanabe
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Patent number: 5463097Abstract: A complex of the formula V or VI,[X.sub.1 M.sub.1 YZ]X.sub.1 M.sub.1 Y].sup..sym. A.sub.1.sup..crclbar.wherein X.sub.1 is two C.sub.2 -C.sub.12 olefins or one C.sub.5 -C.sub.12 diene, Z is Cl, Br or I, A.sub.1.sup..crclbar. is the anion of an oxyacid or complex acid, M.sub.1 is Rh or Ir, and Y is a compound of the formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.8 alkyl, phenyl or phenyl which is substituted by 1 to 3 C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy groups; R.sub.2 and R.sub.3 are identical and are C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl or C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.5 -C.sub.12 cycloalkyl, or phenyl which is substituted by one to three identical or different members selected from the group consisting of C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, --SiR.sub.4 R.sub.5 R.sub.6, halogen, --SO.sub.3 M, --CO.sub.2 M, --PO.sub.3 M, --NR.sub.7 R.sub.8 and --[.sup..sym. NR.sub.7 R.sub.8 R.sub.9 ]X.sup..crclbar. ; or R.sub.2 and R.sub.Type: GrantFiled: August 17, 1994Date of Patent: October 31, 1995Assignee: Ciba-Geigy CorporationInventors: Antonio Togni, Felix Spindler, Nadia Zanetti, Amina Tijani
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Patent number: 5457218Abstract: Electrochromic coating solutions are prepared by reacting a transition metal with a mixture of hydrogen peroxide and an organic acid. The resulting transition metal-peroxy acid product is esterified by reacting with lower carbon alcohols to produce a peroxyester-transition metal derivative. This derivative in solution in lower carbon alcohols provides a working solution into which a substrate having a conductive surface is preferable dipped and removed at a rate sufficient to give a coating of a desired thickness over the conductive surface. Spray or spin coating can be used to apply the coating to the conductive surface of the substrate. The coating is then dried and is externally fired in an oven to complete the necessary reactions to yield an electrochromic oxide coating having exceptional electrochromic properties.Type: GrantFiled: September 2, 1993Date of Patent: October 10, 1995Assignee: Donnelly CorporationInventors: John P. Cronin, Daniel J. Tarico, Anoop Agrawal, Raymond L. Zhang
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Patent number: 5412129Abstract: A precursor used in an MOCVD reactor for production of thin films of certain metal oxides is stabilized by introducing a ligand into the precursor during the precursor synthesis and thereby protecting the precursor from premature oxidation, nucleation, and decomposition.Type: GrantFiled: June 17, 1994Date of Patent: May 2, 1995Inventor: Stephen A. DiCarolis
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Patent number: 5409914Abstract: The present invention provides a pharmaceutical composition of a complex compound having the structure: ##STR1## wherein R.sub.1 and R.sub.1, are the same or different and each is an alkyl group, a phenyl group or a substituted derivative of a phenyl group;wherein R.sub.2 and R.sub.2, are the same or different and each is hydrogen, an unbranched alkyl group, a halide or a group having the structure ##STR2## wherein R is hydrogen, an alkoxide group, an alkyl group, or OH; wherein R.sub.3 and R.sub.3, are the same or different and each is hydrogen or an alkyl group;wherein X and X' are the same or different and each is a water soluble group having weak to intermediate ligand field strength; andQ is a soluble, pharmaceutically acceptable negative ion.Type: GrantFiled: November 1, 1993Date of Patent: April 25, 1995Assignee: Chai-Tech CorporationInventors: Zvi Dori, David Gershon
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Patent number: 5393903Abstract: Mono, bis and tris(substituted 2,2'-bipyridine) complexes of iron, ruthenium, osmium or vanadium are described wherein the bipyridine is substituted by a hydroxy or alkoxy group, or a primary, secondary or tertiary amine group.Type: GrantFiled: October 19, 1992Date of Patent: February 28, 1995Assignee: Asulab S.A.Inventors: Michael Gratzel, David Fraser, Shaik M. Zakeeruddin, Mohammed K. Nazeeruddin
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Patent number: 5348977Abstract: New cobalt complexes of nitrogen mustard alkylating agents which have been found to have hypoxia-selective antitumour properties and are thereby useful antitumour agents are described.Type: GrantFiled: January 21, 1994Date of Patent: September 20, 1994Assignee: Warner Lambert CompanyInventors: William A. Denny, Brian D. Palmer, David C. Ware, William P. Wilson
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Patent number: 5344948Abstract: Neutral single-source molecular organic precursors containing tetradentate tripodal chelating ligands are provided that are useful for the preparation of films using chemical vapor deposition. These complexes can be generally represented by the formula ##STR1## wherein "M" is selected from the group consisting of a lanthanide, an actinide, a Group IIIA metal, a Group IIIA metalloid, a Group IVA metal, a Group IVA metalloid, a Group VA metal, a Group VA metalloid, a Group IIIB metal, a Group IVB metal, a Group VB metal, a Group VIB metal, a Group VIIB metal, and a Group VIIIB metal. The ligand "Z" can be present or absent, i.e., k=0-1, and is selected from the group consisting of hydrogen, halide, and a group bonded to "M" through N, O, P, S, As, Si, or C. In the tetradentate tripodal chelating ligand "E.sub.c " is N, P, or As, and m=0-1. When "E.sub.t " is N, P, or As, m=1, and when "E.sub.t " is O, S, or Se, m=0. Each "R.sup.1 " is independently selected from the group consisting of hydrogen, (C.sub.1 -C.Type: GrantFiled: July 10, 1992Date of Patent: September 6, 1994Assignee: Iowa State University Research Foundation, Inc.Inventor: John G. Verkade
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Patent number: 5342980Abstract: There are provided hydroxamic acids, and the esters and chelates thereof having the structure ##STR1## and their use for the prevention, control or amelioration of diseases caused by phytopathogenic fungi. Further provided are compositions and methods comprising those compounds for the protection of plants from fungal infestation and disease.Type: GrantFiled: December 30, 1992Date of Patent: August 30, 1994Assignee: American Cyanamid CompanyInventor: Gregory J. Haley
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Patent number: 5328992Abstract: Compounds of the formula ##STR1## in which R is alkyl having up to 4 carbon atoms, n has an average value of at least 9, X is a radical of the formula --C(.dbd.O)--(NH--SO.sub.2).sub.m -- in which m is 0 or 1 and, if m is 1, the carhonyl group may be bonded to the oxygen atom or to the nitrogen atom, and each of the radicals A.sub.1, A.sub.2 and A.sub.3, independently of the others, is hydrogen or an acyl radical, and salts of salt-forming compounds of formula I, as well as metal complexes of compounds of formula I, in which A.sub.1, A.sub.2 and A.sub.3 are hydrogen can be used as metal chelators and as auxiliaries in diagnosis.Type: GrantFiled: October 27, 1992Date of Patent: July 12, 1994Assignee: Ciba-Geigy Corp.Inventors: Heinrich Peter, Theophile Moerker
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Patent number: 5258403Abstract: The present invention provides pharmaceutical compositions for the treatment of tumor cells in a subject of for the treating of undesirable symptoms associated with the presence of free radicals. The compositions comprising a complex compound having the structure: ##STR1## wherein R.sub.1 and R.sub.1, are the same or different and each is an alkyl group, a phenyl group or a substituted derivative of a phenyl group;wherein R.sub.2 and R.sub.2, are the same or different and each is hydrogen, an unbranched alkyl group, a halide or a group having the structure ##STR2## wherein R is hydrogen, an alkoxide group, an alkyl group, or OH; wherein R.sub.3 and R.sub.3, are the same or different and each is hydrogen or an alkyl group;wherein X and X' are the same or different and each is a water soluble group having weak to intermediate ligand field strength; andQ is a soluble, pharmaceutically acceptable negative ion and a pharmaceutically acceptable carrier.Type: GrantFiled: June 2, 1992Date of Patent: November 2, 1993Assignee: Chai-Tech CorporationInventors: Zvi Dori, David Gershon
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Patent number: 5241093Abstract: A process for preparing aluminophosphate compounds (and substituted derivatives) of the structural type VFI. This preparation process is characterized in that the speed of increase in temperature of the reaction mixture is greater than 250.degree. C./hour, the total time of heating of the reaction mixture, including the rise in temperature and the plateau heating, being less than one hour. The temperature of the plateau heating is between 100.degree. and 200.degree. C.The synthetic compounds in accordance with the invention possess(a) a general formula approximating to the following:1 Al.sub.2 O.sub.3 0.75-1.25 P.sub.2 O.sub.5 0-0.5 XO.sub.n/2 0-0.05 R y H.sub.2 OwhereX represents a heteroatom chosen from the group consisting of silicon, cobalt, magnesium and zinc;n is the degree of oxidation of the heteroatom X;y, the number of water molecules contained in the said compound, is greater than 0.Type: GrantFiled: January 21, 1992Date of Patent: August 31, 1993Assignee: Institut Francais du PetroleInventors: Jean-Francois Joly, Herve Cauffriez, Jean-Louis Guth
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Patent number: 5221797Abstract: A process for the purification of pseudo-ionone, which comprises preparing pseudo-ionone by a reaction of citral with acetone, followed by bringing the reaction medium into contact with a metal derivative and thereafter distilling the pseudo-ionone.Type: GrantFiled: April 17, 1992Date of Patent: June 22, 1993Assignee: Rhone-Poulenc Nutrition AnimaleInventors: Pierre Chabardes, Noel Crenne
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Patent number: 5202472Abstract: A process for the asymmetric reduction of carboxylic acids of the formula ##STR1## or the amine salts thereof, where R and R.sub.1 are the same or different and are hydrogen, alkyl, cycloalkyl or haloalkyl and Ar is aryl or substituted aryl is disclosed.Type: GrantFiled: June 17, 1991Date of Patent: April 13, 1993Assignee: Ethyl CorporationInventors: Thanikavelu Manimaran, W. Dirk Klobucar, Charles H. Kolich
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Patent number: 5198576Abstract: Bicyclooctyl phosphines are disclosed having the formula: ##STR1## where R is C.sub.1 to C.sub.6 linear or branched alkyl, phenyl, substituted phenyl, halo, or C.sub.1 or C.sub.6 alkoxy; Ar is phenyl, substituted phenyl, naphthyl or substituted naphthyl; and x is 0 or 1.These phosphines are treated with ruthenium compounds to form a complex of the formula Ru.sub.x H.sub.y Cl.sub.z (anthraphos-m).sub.2 (S).sub.p, where S is a tertiary amine; and when y is 0, then x is 2, z is 4 and p is 1; and when y is 1, then x is 1, z is 1 and p is 0; where anthraphos-m is: ##STR2## where R is C.sub.1 to C.sub.6 linear or branched alkyl, phenyl, substituted phenyl, C.sub.1 to C.sub.6 linear or branched alkoxy or halo; Ar is phenyl or substituted phenyl or naphthyl or substituted naphthyl; and m is 0 or 1.The complex is useful in a process for the asymmetric reduction of olefinic carboxylic acids of the formula: ##STR3## where R.sub.1 and R.sub.Type: GrantFiled: August 26, 1991Date of Patent: March 30, 1993Assignee: Ethyl CorporationInventor: Ralph T. Scannell
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Patent number: 5190905Abstract: A process for the asymmetric reduction of carboxylic acids of the formula ##STR1## or the amine salts thereof, where R and R.sub.1 are the same or different and are hydrogen, alkyl, cycloalkyl or haloalkyl and Ar is aryl or substituted aryl is disclosed.Type: GrantFiled: June 17, 1991Date of Patent: March 2, 1993Assignee: Ethyl CorporationInventors: Charles H. Kolich, Thanikavelu Manimaran, W. Dirk Klobucar
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Patent number: 5182409Abstract: The present invention is a process for the preparation of bis(1,2-diaryl-1,2-ethylenedithiolato)-nickel-based complex which is characterized by reacting a benzil-based compound or a benzoin-based compound with phosphorus pentasulfide in 1,3-dimethyl-2-imidazolidinone and successively reacting with nickel chloride.Type: GrantFiled: November 15, 1990Date of Patent: January 26, 1993Assignee: Mitsui Toatsu Chemicals Inc.Inventors: Keisuke Takuma, Yoshihiro Irizato, Kimitoshi Katho
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Patent number: 5177232Abstract: A method for chemically modifying an anionic metal complex, by obtaining from an anionic metal complex insoluble in a non-aqueous solvent and a clathrate compound a clathrate complex thereof with a counter cation of said metal complex, which is soluble in a non-aqueous solvent, and then reacting functional groups of the metal complex, which are not concerned with the coordination of said metal complex, with an organic reagent in the presence of a reaction assistant.The central metal from the chemically modified metal complex may then be removed.Type: GrantFiled: July 9, 1991Date of Patent: January 5, 1993Assignee: Tosoh CorporationInventors: Mitsunobu Sato, Shigenobu Yano, Ryuichi Kitayama, Katsuo Komiya
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Patent number: 5177233Abstract: A catalyst system for the preparation of 1,2-dichloroethane by reacting ethylene and chlorine in a solvent, if desired, in the presence of an inhibitor for reducing the formation of byproducts. The catalyst system comprises a phenolate/chlorine complex. The invention also relates to a process for the chlorination of ethylene using indicated catalyst system.Type: GrantFiled: April 17, 1991Date of Patent: January 5, 1993Assignee: Wacker Chemie GmbHInventors: Ludwig Schmidhammer, Klaus Haselwarter, Hermann Klaus, Gerhard Dummer, Klaus-Peter Mohr