The Metal Is Bonded Directly To Chalcogen Of A -c(=x)x- Group, Wherein The X's Are The Same Or Diverse Chalcogens, Which Group Is Attached Directly Or Indirectly To The Six-membered Hetero Ring By Nonionic Bonding Patents (Class 546/5)
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Publication number: 20100244014Abstract: This invention relates to electroluminescent metal complexes with triazoles and benzotriazoles, respectively of the formula a process for their preparation, electronic devices comprising the metal complexes and their use in electronic devices, especially organic light emitting diodes (OLEDs), as oxygen sensitive indicators, as phosphorescent indicators in bioassays, and as catalysts.Type: ApplicationFiled: June 7, 2010Publication date: September 30, 2010Inventors: THOMAS SCHÄFER, Kristina Bardon, Beat Schmidhalter, Roger Prétôt
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Publication number: 20100178247Abstract: A compound that recognizes and binds to the CA-IX protein has Formula I, II, III, or IV. The compounds may include a radioactive element for radioimaging or therapeutic applications. Thus, pharmaceutical compositions may be prepared with one or more of the compounds of Formula I, II, III, or IV.Type: ApplicationFiled: December 4, 2009Publication date: July 15, 2010Inventors: John W. Babich, Craig Zimmerman, John Joyal, Kevin P. Maresca, Genliang Lu, Shawn Hillier
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Publication number: 20100155713Abstract: A metal complex compound having a special structure containing metals such as iridium. An organic electroluminescence device which comprises at least one organic thin film layer sandwiched between a pair of electrode consisting of an anode and a cathode, wherein the organic thin film layer comprises the above metal complex compound, which emits light by applying an electric voltage between the pair of electrode. An organic EL device employing the novel metal complex compound emits various phosphorous lights including blue light having an enhanced current efficiency and prolonged lifetime.Type: ApplicationFiled: February 18, 2010Publication date: June 24, 2010Applicant: Idemitsu Kosan Co., LTD.Inventors: Fumio Okuda, Toshihiro Iwakuma, Keiko Yamamichi, Chishio Hosokawa
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Publication number: 20100036102Abstract: This invention relates to a group of novel chelating agents, novel chelates, biomolecules labeled with said chelates or chelating agents as well as solid supports conjugated with said chelates, chelating agents or labeled biomolecules. Especially the invention relates to novel chelating agents useful in solid phase synthesis of oligonucleotides or oligopeptides and the oligonucleotides and oligopeptides so obtained.Type: ApplicationFiled: October 16, 2009Publication date: February 11, 2010Applicant: WALLAC OYInventors: Jari HOVINEN, Veli-Matti Mukkala, Harri Hakala, Jari Peuralahti
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Publication number: 20090221816Abstract: The present invention relates to a catalyst based on ruthenium complexes and to a process for the asymmetric epoxidation of olefins using catalysts based on ruthenium complexes.Type: ApplicationFiled: May 13, 2009Publication date: September 3, 2009Applicant: LANXESS DEUTSCHLAND GMBHInventors: Wolfgang Maegerlein, Matthias Beller, Christian Dobler, Man Kin Tse, Santosh Bohr, Markus Klawonn
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Patent number: 7576126Abstract: The invention relates to a method for the preparation of platinum (II) complexes, in particular dicarboxylatoplatinum (II) complexes containing a neutral bidentate ligand, such as oxaliplatin. The method includes the step of reacting a bis-dicarboxylatoplatinate (II) species with a suitable neutral bidentate ligand to form a neutral dicarboxylatoplatinum (II) complex and, if necessary, recrystallising the product to form a pure dicarboxylatoplatinum (II) complex containing a neutral bidentate ligand. The invention also relates to a method for producing a bis-dicarboxylatoplatinate (II) species, and to new platinum (II) complexes that can be made by the method of the invention.Type: GrantFiled: November 24, 2004Date of Patent: August 18, 2009Assignee: Platco Technologies (Proprietary) LimitedInventor: Jan Gysbert Hermanus Du Preez
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Publication number: 20090200920Abstract: This invention pertains to light emitting materials comprising novel ortho-metalated transition metal complexes [C?N]2ML, comprising chelate monoionic ligands (L), also called ancillary ligands. It has been surprisingly found that when the ancillary ligand comprises a substituted aromatic ring bearing a substituent possessing adequate electron-donating properties, said ligand (L) advantageously participates in the emission process, significantly shifting emission towards higher energies (blue-shift) and enabling appreciable improvement of the emission efficiency of complexes [C?N]2ML. Still objects of the invention are the use of said light emitting materials and organic light emitting device comprising said light emitting material.Type: ApplicationFiled: October 6, 2006Publication date: August 13, 2009Applicant: Solvay SAInventors: Sung Ho Jin, Ok-Sang Jung, Young In Kim, Muyung Ho Hyun, Jae Wook Lee, Ung Chun Yoon, Mohammad Khaja Nazeeruddin, Cedric Klein, Michael Graetzel
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Patent number: 7556867Abstract: A high-efficient phosphorescent iridium (III) complex with a heteroatom linking group and an organic electroluminescent (EL) device using the same. The iridium complex is represented by Formula 1 or Formula 2: The iridium complex of the present invention complex can efficiently emit light ranging from a blue region to a red region in a triplet MLCT state. The iridium (III) complex can be used in formation of an organic layer of an organic EL device. Since the iridium complex of the present invention can be used as a high-efficiency phosphorescent material, the iridium complex of the present invention can produce white light emission when used together with a green-emitting material or a red-emitting material as well as emission at the wavelength range of 400-650 nm.Type: GrantFiled: March 24, 2005Date of Patent: July 7, 2009Assignee: Samsung Mobile Display Co., Ltd.Inventors: Seok Chang, Hyun-Nam Cho, Jong-Hyoup Lee, Lyong-Sun Pu, Yi-Yeol Lyu, Young-Hun Byun, Sung-Joon Kim, Hoon-Sik Kim
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Patent number: 7553560Abstract: Emissive phosphorescent organometallic compounds are described that produce improved electroluminescence, particularly in the blue region of the visible spectrum. Organic light emitting devices employing such emissive phosphorescent organometallic compounds are also described. Also described is an organic light emitting layer including a host material having a lowest triplet excited state having a decay rate of less than about 1 per second; a guest material dispersed in the host material, the guest material having a lowest triplet excited state having a radiative decay rate of greater than about 1×105 or about 1×106 per second and wherein the energy level of the lowest triplet excited state of the host material is lower than the energy level of the lowest triplet excited state of the guest material.Type: GrantFiled: May 6, 2008Date of Patent: June 30, 2009Assignees: The Trustees of Princeton University, The University of Southern California, Universal Display CorporationInventors: Sergey Lamansky, Mark E. Thompson, Vadim Adamovich, Peter I. Djurovich, Chihaya Adachi, Marc A. Baldo, Stephen R. Forrest, Raymond Kwong
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Patent number: 7482449Abstract: This invention relates to a process for making spirolactone compounds analogous to formula I.Type: GrantFiled: March 19, 2008Date of Patent: January 27, 2009Assignees: Merck & Co., Inc., Banyu Pharmaceutical Co., Ltd.Inventors: Ralph P. Volante, David M. Tschaen, Steven A. Weissman, Matthew Heileman, Toshiaki Mase, Takehiko Iida, Kenji Maeda, Toshihiro Wada, Hiroki Sato, Kenichi Asakawa
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Publication number: 20080221328Abstract: Neutral lanthanide(III) complexes including at least one ligand are disclosed. The ligand includes a heterocyclic aromatic ring with at least one carboxylic acid group attached thereto, wherein a heteroatom of the heterocyclic ring and the carboxylate function of the carboxylic acid group co-ordinate (chelate) to the lanthanide. The complexes can be used in luminescent lamps and luminescent displays. The complexes can be synthesized by heating a mixture of a lanthanide 3+ salt and ligand L in a suitable solvent until a precipitate of the lanthanide complex forms. In one embodiment, the formal 3+ charge on the lanthanide is neutralized by providing in the ligands for the complex, three coordinating carboxylate groups, (RCO2?). The heteroatom coordinated to the lanthanide may be nitrogen, oxygen, sulfur or phosphorus.Type: ApplicationFiled: March 3, 2008Publication date: September 11, 2008Inventors: Jan Reedijk, Wen Tian Fu, Patrick Gamez-Enamorado, Tiddo J. Mooibroek
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Publication number: 20080200678Abstract: The present invention relates to a light-emitting transition metal compound represented by the Chemical Formula 1 and Chemical Formula 2 and an organic electroluminescence device including the same. In the Chemical Formulae 1 and 2, M is Ir, Pt, Rh, Re, Os, and the like, m is 2 or 3, n is 0 or 1, the sum of m and n is 3, provided that the sum of m and n is 2 when M is Pt, X, and Z are the same or different, N or P, and Y and Q are O, S, or Se, R1 and R5 are hydrogen, a C1 to C20 alkyl excluding an aromatic cyclic substituent, a cycloalkyl, a halogen, a linear or branched substituent including at least one halogen, or a linear or branched substituent including at least one heteroatom, and R2, R3, R4, R6, R7, R8, R9, and R10 are hydrogen, a C1 to C20 alkyl, an aryl, a cycloalkyl, a halogen, a linear or branched substituent including at least one halogen, a linear or branched substituent including at least one heteroatom, carbonyl, vinyl, or acetylenyl, or may form a cycle, and may be the same or different.Type: ApplicationFiled: January 8, 2007Publication date: August 21, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.,Inventors: Dong-Hack Suh, Jin-Soo Lim, Ji-Ho Kim, Sun-Hyun Choi
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Patent number: 7413816Abstract: A white or whitish luminescent material for phosphorescence is provided by synthesizing an organometallic complex that is able to convert a triplet excited state into light emission. In particular, a white electroluminescent device that has a high luminous efficiency and can be manufactured easily is provided by using the organometallic complex to manufacture a white or whitish electroluminescent device. The electroluminescent device is used to provide a light-emitting device with low power consumption. A fluorescent and phosphorescent material represented by a general formula (2) is synthesized.Type: GrantFiled: December 17, 2003Date of Patent: August 19, 2008Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hideko Inoue, Satoshi Seo, Atsushi Tokuda, Ryoji Nomura
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Patent number: 7381479Abstract: Emissive phosphorescent organometallic compounds are described that produce improved electroluminescence, particularly in the blue region of the visible spectrum. Organic light emitting devices employing such emissive phosphorescent organometallic compounds are also described. Also described is an organic light emitting layer including a host material having a lowest triplet excited state having a decay rate of less than about 1 per second; a guest material dispersed in the host material, the guest material having a lowest triplet excited state having a radiative decay rate of greater than about 1×105 or about 1×106 per second and wherein the energy level of the lowest triplet excited state of the host material is lower than the energy level of the lowest triplet excited state of the guest material.Type: GrantFiled: May 3, 2005Date of Patent: June 3, 2008Assignees: The University of Southern California, The Trustees of Princeton University, Universal Display CorporationInventors: Sergey Lamansky, Mark E. Thompson, Vadim Adamovich, Peter I. Djurovich, Chihaya Adachi, Marc A. Baldo, Stephen R. Forrest, Raymond Kwong
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Publication number: 20080103308Abstract: Provided are a highly efficient phosphorescent organometallic complex and an organic electroluminescent (EL) device using the same. The organometallic complex can be used in the formation of an organic layer of the organic EL device, and can emit light in a red wavelength range as a highly efficient phosphorescent material. The organic EL device using the organometallic complex can exhibit high brightness and a low driving voltage.Type: ApplicationFiled: October 31, 2007Publication date: May 1, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Das Rupasree RAGINI, Hee-kyung KIM, O-hyun KWON, Young-hun BYUN, Joon-yong PARK, Jung-bae SONG, Eun-sil HAN
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Patent number: 7301025Abstract: Compounds of the formula wherein M is either (1) a metal ion having a positive charge of +p wherein p is an integer which is at least 2, said metal ion being capable of forming a compound with at least two chromogen moieties, or (2) a metal-containing moiety capable of forming a compound with at least two chromogen moieties, z is an integer representing the number of chromogen moieties associated with the metal and is at least 2, and R1, R2, R3, R4, R5, R6, R7, a, b, c, d, Y, Q?, A, and CA are as defined herein.Type: GrantFiled: June 1, 2005Date of Patent: November 27, 2007Assignee: Xerox CorporationInventors: Jeffery H. Banning, Bo Wu, James M. Duff, Wolfgang G. Wedler, Jule W. Thomas, Jr., Randall R. Bridgeman
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Patent number: 7294415Abstract: An organometallic complex which includes a carboxylic acid as an ancillary ligand, and an organic electroluminescent device employing the same. The organometallic complex is useful as a phosphorescence dopant material of an organic electroluminescent device due to its high luminosity in the range of the blue wavelengths.Type: GrantFiled: June 25, 2004Date of Patent: November 13, 2007Assignee: Samsung SDI Co., Ltd.Inventors: Hae-Jung Son, Eun-Sil Han, Jong-Hyoup Lee, Lyong-Sun Pu, Seok Chang, Yi-Yeol Lyu, Das Rupasree Ragini
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Publication number: 20070184303Abstract: Provided is a cyclometalated transition metal complex represented by Formula 1: The cyclometalated transition metal complex contains a new ancillary ligand having a carboxylate acid or the like connected to a hetero ring, so that it can efficiently emit red light from a phosphorous material through intersystem crossing (ISC) to form triplet excitons and then metal to ligand charge transfer (MLCT). An organic light emitting device manufactured using the transition metal complex shows excellent luminous efficiency and external quantum efficiency.Type: ApplicationFiled: December 6, 2006Publication date: August 9, 2007Inventors: Young-Hun Byun, Hee-Kyung Kim, Das Rupasree Ragini, O-Hyun Kwon, Yi-Yeol Lyu, Lyong-Sun Pu, Shinichiro Tamura
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Publication number: 20070178332Abstract: Provided are an organometallic complex providing highly efficient phosphorescence and an organic electroluminescence device using the same. The organometallic complex can be used to form an organic layer of the organic electroluminescence device, efficiently emits light of a wavelength corresponding to red light, and has high brightness and low operating voltage.Type: ApplicationFiled: December 18, 2006Publication date: August 2, 2007Inventors: Das Rupasree Ragini, Che-Un Yang, Young-Hun Byun, O-Hyun Kwon, Lyong-Sun Pu, Shinichiro Tamura, Woon-Jung Paek, Myeong-Suk Kim, Hee-Kyung Kim, Jong-Jin Park
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Patent number: 7232616Abstract: A class of organic metal complexes with mixed ligands for organic light emitting diodes are designed and characterized as the formula:(L2L3M)n. In this formula: L2 is a bidentate ligand which has at least one coordinate atom of oxygen; L3 is a tridentate ligand with three chelate points; M is trivalent metal selected from the group consisting of Al, Ga, In, Tl, and Ir; and n is an integer of from 1 to 2. In Formula (3), X, Y independently represent CH or N and II, III are unsubstituted or substituted aryl or heteroalkyl groups. The substituent groups can be alkyl having 1–8 carbon atoms, halogen, cyano, amino, amido, sulfonyl, carbonyl, aryl, or heteroalkyl groups such as furan, thiophene, pyrrole, pyridine, etc.Type: GrantFiled: January 28, 2003Date of Patent: June 19, 2007Assignee: Tsinghua UniversityInventors: Yong Qiu, Juan Qiao
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Patent number: 7202362Abstract: Methods and compositions related to the synthesis of photosensitizers of titanium dioxide performed in situ, stepwise, in the solid state, and directly on the surface of the titanium dioxide semiconductor material. The method is generally accomplished by first absorbing an anchor ligand onto the titanium dioxide semiconductor material, then adding an appropriate transition metal, and finally adding one or more secondary ligands to complete the synthesis of the transition metal complex or sensitizer.Type: GrantFiled: March 8, 2004Date of Patent: April 10, 2007Assignee: University of HoustonInventors: Randolph P. Thummel, Yi-Zhen Hu
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Patent number: 7176307Abstract: Organometal complexes which are obtainable with a good yield by using a ligand which can be easily synthesized are provided. The organometal complexes are excellent in heat resistance. An electroluminescence element having high light emission efficiency is manufactured using the organometal complex. Therefore, the organometal complex represented by the general formula (1) is synthesized.Type: GrantFiled: December 28, 2005Date of Patent: February 13, 2007Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Hideko Inoue, Atsushi Tokuda
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Patent number: 7078114Abstract: A phosphorescent compound is formed by synthesizing an orthometallated complex by using easily-synthesized ligands. An electroluminescent device having high luminous efficiency uses the phosphorescent compound. Moreover, a light-emitting device operating at a low voltage uses the electroluminescent device. A phosphorescent compound represented by general formula [formula 1] is synthesized. Further, an electroluminescent device containing the phosphorescent compound is formed. In order to generate phosphorescent emission more efficiently, a heavy metal is preferably used as a central metal from the perspective of heavy atom effects.Type: GrantFiled: November 21, 2003Date of Patent: July 18, 2006Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Hideko Inoue, Atsushi Tokuda, Ryoji Nomura
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Patent number: 7041390Abstract: Organometal complexes which are obtainable with a good yield by using a ligand which can be easily synthesized are provided. The organometal complexes are excellent in heat resistance. An electroluminescence element having high light emission efficiency is manufactured using the organometal complex. Therefore, the organometal complex represented by the general formula (1) is synthesized. Further, this is applied to the electroluminescence element.Type: GrantFiled: February 12, 2004Date of Patent: May 9, 2006Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Hideko Inoue, Atsushi Tokuda
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Patent number: 7022853Abstract: The present invention relates to a single-pot process for the preparation of metal nicotinates, useful as a dietary supplement, from beta picoline as a source of the starting material, said process comprising the steps hydrosulfonation of beta picoline with sulfuric acid, heating the reaction mixture thus obtained to a temperature of about 150°-210° C. followed by oxidation with a suitable oxidizing agent to obtain nicotinic acid sulfate, reacting the nicotinic acid sulfate with a water soluble zinc and/or chromium salt to produce a solid metal nicotinate and separating it to thereby recover the corresponding metal nicotinates of high purity.Type: GrantFiled: October 29, 2002Date of Patent: April 4, 2006Assignee: Jubilant Organosys Ltd.Inventors: Nikhilesh Chandra Bhardwaj, Pradeep Kumar Verma, Agarwal Ashutosh
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Patent number: 6919333Abstract: A molecule for labeling a target material is provided including two transition-metal chelates and a detectable group. The molecule has the general structural formula (I): wherein: (a) Y and Y? are each a transition metal, (b) R1 and R1? are each independently CH(COO?), CH(COOH), or absent; (c) R2 and R2? are linkers each having a length of from about 3.0 to about 20 ?; and (d) X is a detectable group. The linkers may be linear or branched, may contain aromatic moieties, and may optionally be further substituted. Methods of using the molecules of the invention as probes in detecting and analyzing target materials as well as kits including the molecule of the invention are also provided.Type: GrantFiled: September 17, 2003Date of Patent: July 19, 2005Assignee: Rutgers, The State University of New JerseyInventors: Richard H. Ebright, Yon W. Ebright
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Publication number: 20040241493Abstract: A white or whitish luminescent material for phosphorescence is provided by synthesizing an organometallic complex that is able to convert a triplet excited state into light emission. In particular, a white electroluminescent device that has a high luminous efficiency and can be manufactured easily is provided by using the organometallic complex to manufacture a white or whitish electroluminescent device. The electroluminescent device is used to provide a light-emitting device with low power consumption. A fluorescent and phosphorescent material represented by a general formula (2) is synthesized. Since this material can emit both components of fluorescence and phosphorescence in the region of visible light, white or whitish luminescence can be achieved, which is applied to an electroluminescent device or a light-emitting device.Type: ApplicationFiled: December 17, 2003Publication date: December 2, 2004Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hideko Inoue, Satoshi Seo, Atsushi Tokuda, Ryoji Nomura
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Patent number: 6635759Abstract: The invention relates to a substituted 4-trifluoromethyl carbostyril according to formula (I) and is characterised in that the 4-trifluoromethyl carbostyril is provided with an absorption maximum between 350 and 420 nm and a luminescence maximum between 430 and 900 nm. The molecule can be substituted with groups that are useful for complexing metal ions and/or for binding the molecule to relevant groups of a target molecule or a solid supporting material. The carbostyril as described above can inter alia serve as an antenna molecule of a lanthanide complex. Said complexes can be templates and can be brought into contact with a directly bound or free colour molecule which absorbs in the rant of 580-710 nm. Luminescence effects and decay periods can be measured after the contact with a relevant analyte.Type: GrantFiled: December 31, 2001Date of Patent: October 21, 2003Inventors: Georg Uray, Karlheinz Niederreiter
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Patent number: 6541490Abstract: Compounds and methods of preparing compounds represented by structural formula (I): wherein X represents any suitable counter-anion; R1 and R2 independently represent hydrogen, C1-6 alkoxy or nitro; R3, R4, R5 and R6 each independently represents hydrogen, hydroxy, halo, C1-6 alkyl, C2-6 alkenyl or C1-6 alkoxy; and R7, R8, R9 and R10 each independently represents hydrogen, hydroxy, halo, C1-6 alkyl, C2-6 alkenyl or C1-6 alkoxy. Compounds represented by structural formula (I) are useful in treating or preventing free radical-associated diseases or conditions in mammals.Type: GrantFiled: November 27, 2000Date of Patent: April 1, 2003Assignee: Eukarion, Inc.Inventors: Ian Baxter Campbell, Ann Louise Walker, Philip Charles Box, Gerard Martin Paul Giblin, George Edward Tranter
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Publication number: 20020198383Abstract: Complexes of a selected class of chiral ligands with molybdenum, tungsten or chromium, preferably molybdenum, are effective as catalysts in highly enantioselective and regioselective alkylation of allylic substrates.Type: ApplicationFiled: September 7, 2001Publication date: December 26, 2002Inventors: Barry M. Trost, Iwao Hachiya
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Publication number: 20020177584Abstract: The present invention relates to a single pot process for the preparation of metal picolinates useful as dietary supplement from alpha picoline, said process comprising hydrosulphonation of alpha picoline with sulphuric acid; heating the reaction mixture thus obtained between the range of 150° to 210 ° C. followed by oxidation with any suitable oxidizing agent to obtain alpha picolinic acid sulphate, and treating the thus obtained alpha picolinic acid sulphate with a metal salt solution to obtain corresponding metal picolinate.Type: ApplicationFiled: October 26, 2001Publication date: November 28, 2002Inventors: Verma Pradeep Kumar, Agarwal Ashutosh, Bhardwaj Nikhlesha Chandra, Singh Samir Kumar
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Patent number: 6486318Abstract: The present invention relates to a single pot process for the preparation of metal picolinates useful as dietary supplement from alpha picoline, said process comprising hydrosulphonation of alpha picoline with sulphuric acid; heating the reaction mixture thus obtained between the range of 150° to 210° C. followed by oxidation with any suitable oxidizing agent to obtain alpha picolinic acid sulphate, and treating the thus obtained alpha picolinic acid sulphate with a metal salt solution to obtain corresponding metal picolinate.Type: GrantFiled: October 26, 2001Date of Patent: November 26, 2002Assignee: Jubilant Organosys LimitedInventors: Verma Pradeep Kumar, Agarwal Ashutosh, Bhardwaj Nikhlesha Chandra, Singh Samir Kumar
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Patent number: 6469169Abstract: The invention provides a water soluble palladium complex of the general formula I wherein R1, R2, R3 are substituents on phosphine ligands selected from the group consisting of hydrogen, alkyl, arylalkyl, and cycloaliphatic at least one of which carries a sulfonic acid, and salts thereof, X is aryl or alkyl sulphonato or aryl or alkyl carboxylato or formato or halides such as Cl−, Br−, I− is an anionic chelating ligand consisting of an N donor and a O− group, 1<n<10 and a process for the preparation thereof.Type: GrantFiled: March 20, 2001Date of Patent: October 22, 2002Assignee: Council of Scientific and Industrial ResearchInventors: Jayasree Seayad, Abdul Majeed Seayad, Bibhas Ranjan Sarkar, Raghunath Vitthal Chaudhari
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Patent number: 6337038Abstract: Dichronic particles are developed for a window which varies the degree of light transmission at a user's desire, wherein the particles are obtained by reacting metal complexes of a transition metal (Co, Ni, Cu) and picolinic acid with polyiodine, dispersing into the particles an acrylate based polymer resin containing a plasticizer and injecting the particles between two conductive sheets of glass to be used for a window which varies the degree of light transmission in presence of electric field, to thereby improve stability to long exposure, color fastness, anti-clusteration, rapid changes in the degree of light transmission in the cases of absence and presence of electric field or power.Type: GrantFiled: October 15, 1999Date of Patent: January 8, 2002Assignee: Korea Kumho Petrochemical Co., Ltd.Inventors: Seung Hwa Lee, Do Sung Kim
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Publication number: 20010039339Abstract: Zinc dithiocarbamates are obtained in especially readily filterable form and high purity when zinc salts are first added, in aqueous solution, to the secondary amines underlying the zinc carbamates, so that a zinc salt complex of the amines is formed, and carbon disulfide and then sodium hydroxide solution are then introduced, with stirring, into the aqueous suspension so obtained, the temperatures being maintained in the range from room temperature to the boiling temperature of carbon disulfide until the reaction has completely finished.Type: ApplicationFiled: April 2, 2001Publication date: November 8, 2001Inventors: Rudiger Schubart, Hans-Wilhelm Engels
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Patent number: 6069253Abstract: The present invention relates to novel group VIII transition metal complexes represented by the formula (I) as: ##STR1## wherein M is the central transition metal; represents a semilabile anionic chelating ligand; R.sub.1, R.sub.2 & R.sub.3 are substituents on the phosphine ligand, X is chosen from sulphonato, carboxylato, formato group or halides and 1<n<10. The invention also provides a process for the preparation of said transition metal complex.Type: GrantFiled: March 31, 1999Date of Patent: May 30, 2000Assignee: Council of Scientific and Industrial ResearchInventors: Raghunath V. Chaudhari, Jayasree Seayad, Seayad A. Majeed
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Patent number: 6001872Abstract: The present invention relates to the treatment of tumors with a novel water soluble trans-platinum coordination compound having the general structural formula [PtBX.sub.m (NR*.sub.3)] where B is a planar, heterocyclic ring containing at least one nitrogen atom, and a pendant chelating group; and X is an anionic ligand; and R* is hydrogen or a lower alkyl.Type: GrantFiled: March 5, 1999Date of Patent: December 14, 1999Assignee: Virginia Commonwealth UniversityInventors: Nicholas P. Farrell, Ulrich Bierbach
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Patent number: 5869026Abstract: Novel ligands for use in MRI contrast agents and which have the formula ##STR1## wherein R.sub.1 -R.sub.14, M", l, m, and n are defined herein.Type: GrantFiled: August 21, 1997Date of Patent: February 9, 1999Assignee: Hoechst Celanese Corp.Inventors: Wei-Jen Peng, David E. Reichert
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Patent number: 5869025Abstract: A composition of matter having the formula ##STR1## wherein R.sub.1 -R.sub.14, M, l, m, and n are defined herein and which have application as MRI contrasting agents.Type: GrantFiled: August 21, 1997Date of Patent: February 9, 1999Assignees: Hoechst Celanese Corporation, Washington UniversityInventors: Wei-Jen Peng, David E. Reichert
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Patent number: 5861140Abstract: A composition of matter having the formula ##STR1## wherein R.sub.1 -R.sub.14, M, l, m, and n are defined herein and which have application as MRI contrasting agents.Type: GrantFiled: November 20, 1996Date of Patent: January 19, 1999Assignee: Hoechst Celanese Corp.Inventors: Wei-Jun Peng, Daniel A. Aguilar
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Patent number: 5858329Abstract: A method of performing an NMR diagnostic procedure in a patient in need of the same comprising administering to the patient an effective amount of an NMR diagnostic medium and then exposing the patient to an NMR measurement step to which the diagnostic medium is responsive thereby imaging at least a portion of the patient's body, wherein the diagnostic medium comprises a composition of matter which contains a compound which has the structural formula: ##STR1## wherein R, R.sub.1 -R.sub.10 and M are defined herein.Type: GrantFiled: August 21, 1997Date of Patent: January 12, 1999Assignee: Hoechst Celanese CorporationInventors: Wei-Jen Peng, Humberto Ramos, Jr.
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Patent number: 5859215Abstract: This invention relates to a detectable molecule comprising a biospecific binding reactant attached to a luminescent lanthanide chelate comprising a lanthanide ion and a chelating ligand of the formula ##STR1## wherein --A-- is a bivalent aromatic structure selected from the group consisting of ##STR2## One of the two groups G.sub.1 or G.sub.2 is used for coupling the chelate to a biospecific binding reactant. The lanthanide ion is europium(III), terbium(III), dysprosium (III) or samarium (III).Type: GrantFiled: October 25, 1995Date of Patent: January 12, 1999Assignee: Wallac OyInventors: Juan Carlos Rodriguez-Ubis, Harri Takalo, Veli-Matti Mukkala
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Patent number: 5817292Abstract: This invention provides compositions useful in MR imaging comprising a polymer comprising units comprising the residue of a chelating agent linked to a poly(alkylene oxide) moiety, the polymer having a paramagetic metal ion associated therewith.Type: GrantFiled: October 14, 1992Date of Patent: October 6, 1998Assignee: Nycomed Imaging ASInventors: Robert A. Snow, David L. Ladd, John L. Toner
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Patent number: 5756688Abstract: This invention provides compositions useful in MR imaging comprising a polymer comprising units comprising the residue of a chelating agent linked to a poly(alkylene oxide) moiety, the polymer having a paramagetic metal ion associated therewith.Type: GrantFiled: September 14, 1993Date of Patent: May 26, 1998Assignee: Sterling Winthrop Inc.Inventors: Robert A. Snow, David L. Ladd, John L. Toner, K. Robert Hollister
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Patent number: 5693310Abstract: Compounds of general Formula I ##STR1## wherein R.sup.3 is a saturated, unsaturated, straight- or branched-chain or cyclic aliphatic hydrocarbon residue of up to 16 carbon atoms or, if R.sup.4 is a hydrogen atom, a cycloalkyl group or an aryl or aralkyl group optionally substituted by one or several C.sub.1 -C.sub.6 -dialkylamino groups or by one or several C.sub.1 -C.sub.6 -alkoxy groups,R.sup.4 is a hydrogen atom, a saturated, unsaturated, straight- or branched-chain or cyclic hydrocarbon residue of up to 16 carbon atoms, orR.sup.3 and R.sup.4 jointly mean a saturated or unsaturated 5- or 6-membered ring optionally substituted or containing an O, S, N atom or oxo substituent, and Y is COOX or CONR.sub.3 R.sub.4,are valuable complexing agents, complexes or complex salts, e.g., for use as NMR or X-ray diagnostic image-enhancement agents or radioactive diagnostic agents.Type: GrantFiled: November 19, 1990Date of Patent: December 2, 1997Assignee: Schering AktiengesellschaftInventors: Heinz Gries, Bernd Raduechel, Hans-Joachim Weinmann, Wolfgang Muetzel, Ulrich Speck
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Patent number: 5686613Abstract: Novel pyridine phosphonate ligands are disclosed that when combined with polyvalent metals results in useful catalyst compositions for the conversion of hydrogen sulfide to solid sulfur. Catalysts containing these novel ligands exhibit resistance to metal precipitation and demonstrate little or no oxidative chemical degradation when employed to convert hydrogen sulfide to elemental sulfur.Type: GrantFiled: January 16, 1996Date of Patent: November 11, 1997Assignee: Wheelabrator Clean Air Systems Inc.Inventors: Derek McManus, Arthur E. Martell, Dian Chen
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Patent number: 5582817Abstract: Zinc salts, zinc complexes or salts thereof of a compound selected from the group consisting of nicotinamides, picolinamides, 3,4-dihydroxybenzoic acids, amino acids, peptides, hinokitiols and pyridine carboxylic acids represented by formula (1): ##STR1## possess a metallothionein inducing effect, effect of suppressing the production of sunburn cells, and therefore, useful as cosmetics and as drugs which are for ameliorating sunburn, preventing sunburn, ameliorating skin diseases, relieving irradiation disorders, and the like.Type: GrantFiled: October 1, 1993Date of Patent: December 10, 1996Assignees: Otsuka Pharmaceutical Co., Ltd., Japan Immunoresearch Laboratories Co., Ltd.Inventors: Yoshiro Otsu, Yaeno Arima, Katsuyuki Nakajima, Masakazu Adachi, Tsutomu Muramatsu, Katsumi Hanada
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Patent number: 5571897Abstract: Lanthanide chelates which contain three heterocyclic rings covalently coupled to each other (either one 2,6-pyridylene and two five-membered unsaturated heterocyclic ring moieties or two 2,6-pyridylene and one five-membered unsaturated heterocyclic ring moiety) and two chelating groups so seated that they together chelate the same lanthanide ion even in aqueous solutions. These lanthanide chelates can optionally contain a reactive group for coupling to biologically active molecules. The new chelates are suitable for classical lanthanide chelate applications and are also useful as probes in time-resolved fluorescence microscopy, cytometry, multilabelling techniques and in process controls in industry.Type: GrantFiled: July 26, 1994Date of Patent: November 5, 1996Assignee: Wallac OyInventors: Harri Takalo, Veli-Matti Mukkala
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Patent number: 5536838Abstract: A novel synthesis of a chromium amino acid nicotinate complex which has glucose tolerance factor activity in which nicotinic acid is dissolved in an aqueous solvent, glycine, glutamic acid and cystine are added, chromium chloride is added and, after completion of the reaction, the pH is adjusted with a base and the reaction mixture freeze dried.Type: GrantFiled: September 30, 1994Date of Patent: July 16, 1996Assignee: ConreLabsInventor: Yeni Wong
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Patent number: 5527905Abstract: 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: GrantFiled: November 18, 1994Date of Patent: June 18, 1996Assignee: Sankyo Company, LimitedInventors: Yukio Sugimura, Tomoyuki Shibata, Yukiko Kameyama, Kimio Iino, Shigeki Muramatsu, Tomowo Kobayashi, Toshihiko Hashimoto