The Phosphorus Is A Ring Member Patents (Class 564/16)
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Patent number: 8822723Abstract: A series of curing agents are provided. The curing agents are multi-functional and phosphorus-containing. The curing agents have excellent processability to be used as an epoxy resin curing agent. The curing agents can be cured to obtain a phosphorus-containing epoxy thermoset with flame retardancy characteristic. The epoxy thermosets are very fit for circuit board substrate having high glass transition temperature; semiconductor packaging material; and related materials.Type: GrantFiled: May 7, 2011Date of Patent: September 2, 2014Assignee: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National DefenseInventors: Wen-Chiung Su, Ching-Hsuan Lin, Hung-Tse Lin
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Publication number: 20140203251Abstract: Provided are a novel compound and an organic electronic device (OED) including the same. The novel compound has better hole injection and hole transport properties than a conventional material, and thus may enhance thermal stability and efficiency when used as a material for a hole injection or hole transport layer of the OED.Type: ApplicationFiled: May 25, 2012Publication date: July 24, 2014Applicant: LMS CO., LTD.Inventors: Joon Ho Jung, Jeong Og Choi, Oh Kwan Kwon, Ah Reum Hwang
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Patent number: 8603328Abstract: Supercritical carbon dioxide extraction of corn germ oil from corn germ utilizing extraction conditions adapted to a dry corn fractionation ethanol production process.Type: GrantFiled: October 28, 2009Date of Patent: December 10, 2013Assignee: MOR Supercritical, LLCInventors: Kenneth E. DeLine, Daniel L. Claycamp, Daniel Fetherston, Rodger T. Marentis
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Patent number: 8487043Abstract: A phosphorous flame retardant primarily includes hexachlorotriphosphazene (HCP) having poly(oxyalkylene)amine substitutes. The poly(oxyalkylene)amine includes at least two end groups. The phosphorous flame retardant can further include layered silicate clay. The layered silicate clay can be intercalated and modified with the poly(oxyalkylene)amine substitutes of HCP to effectively promote thermal stability. The flame retardant, phosphazene-poly(oxyalkylene)amine adducts, can be applied to a polymer. By the cross-linking between them, the flame-retarding property of the polymer can be improved. Also provided is a method for producing the flame retardant of phosphazene-poly(oxyalkylene)amine adducts and application thereof to a polymer.Type: GrantFiled: March 31, 2010Date of Patent: July 16, 2013Assignee: National Taiwan UniversityInventors: Jiang-Jen Lin, Yu-Min Chen, Yi-Lin Liao
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Publication number: 20130089793Abstract: An ionic liquid including a phosphazene compound that has a plurality of phosphorus-nitrogen units and at least one pendant group bonded to each phosphorus atom of the plurality of phosphorus-nitrogen units. One pendant group of the at least one pendant group comprises a positively charged pendant group. Additional embodiments of ionic liquids are disclosed, as are electrolyte solutions and energy storage devices including the embodiments of the ionic liquid.Type: ApplicationFiled: October 5, 2011Publication date: April 11, 2013Applicant: BATTELLE ENERGY ALLIANCE, LLCInventors: Kevin L. Gering, Mason K. Harrup, Harry W. Rollins
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Publication number: 20120157658Abstract: This invention relates to methods, compositions, and apparatuses for producing macrocyclic compounds. First, one or more reactants are provided in a reaction medium, which are capable of forming the macrocyclic compound through a desired reaction pathway that includes at least cyclization, and which are further capable of forming undesired oligomers through a undesired reaction pathway that includes undesirable oligomerization. Oligomerization of such reactions in the reaction medium is modulated to reduce formation of undesired oligomers and/or to reduce separation of the undesired oligomers from the reaction medium, relative to a corresponding unmodulated oligomerization reaction, thereby maximizing yields of the macrocyclic compound. The macrocyclic compound so formed is then recovered from the reaction medium. Preferably, the macrocyclic compound spontaneously separates from the reaction medium via phase separation.Type: ApplicationFiled: November 8, 2011Publication date: June 21, 2012Inventors: Thomas E. Johnson, Billy T. Fowler
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Publication number: 20120130126Abstract: A series of curing agents are provided. The curing agents are multi-functional and phosphorus-containing. The curing agents have excellent processability to be used as an epoxy resin curing agent. The curing agents can be cured to obtain a phosphorus-containing epoxy thermoset with flame retardancy characteristic. The epoxy thermosets are very fit for circuit board substrate having high glass transition temperature; semiconductor packaging material; and related materials.Type: ApplicationFiled: May 7, 2011Publication date: May 24, 2012Applicant: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National DefenseInventors: Wen-Chiung Su, Ching-Hsuan Lin, Hung-Tse Lin
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Publication number: 20100305361Abstract: Sterically hindered phenol and phosphite based compounds represented by structural formula II: and their use as antioxidants in a wide range of materials including, but not limited to, food, plastics, elastomers, composites and petroleum based products is disclosed herein.Type: ApplicationFiled: May 28, 2010Publication date: December 2, 2010Inventors: Ashok L. Cholli, Rajesh Kumar
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Publication number: 20100253212Abstract: The invention provides a light-emission material comprising a compound having Formula (I): , wherein each of A independently is: each of Rm independently is H, alkyl, alkenyl, alkynyl, CN, CF3, alkylamino, amino, alkoxy, halo, aryl, or heteroaryl.Type: ApplicationFiled: June 26, 2009Publication date: October 7, 2010Inventors: Chien-Hong Cheng, Ho-Hsiu Chou
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Patent number: 7799824Abstract: Quaternary salt compounds of Formula (I) or pharmaceutically acceptable forms thereof, which are CCR2 antagonists and are useful in preventing, treating or ameliorating CCR2 mediated inflammatory syndromes, disorders or diseases in a subject in need thereof.Type: GrantFiled: June 22, 2005Date of Patent: September 21, 2010Assignee: OraPharma, Inc.Inventors: Bharat Lagu, Michael Wachter
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Publication number: 20100204514Abstract: The present application is directed to i) a method for synthesizing aminophosphine (P,N) and phosphine-aminophosphine (P,N,P) ligands, ii) the use of such ligands in the preparation of metal complexes as hydrogenation catalysts, and iii) aminophosphine (P,N) and phosphine-aminophosphine (P,N,P) ligands of various structures. In particular, the methods in i) involve reacting a protected tertiary amine of formula (I) with a metal phosphide of the formula Y—PR8R9 to afford an aminophosphine of formula (II), which can then be optionally further reacted with a phosphine of the formula (III) to afford the phosphine-aminophosphine of formula (IV).Type: ApplicationFiled: June 9, 2008Publication date: August 12, 2010Inventors: Kamaluddin Abdur-Rashid, Xuanhua Chen, Rongwei Guo, Wenli Jia
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Publication number: 20100044628Abstract: A calixarene bisphosphite composition for use as a ligand in a transition metal-ligand complex catalyst and in a complex catalyst precursor. The ligand is especially useful in catalysts and catalyst precursors for hydroformylation processes wherein a raffinate stream comprising a mixture of alpha, beta, and iso-olefinic isomers is hydroformylated in the presence of carbon monoxide, hydrogen, and the transition metal-ligand complex catalyst to form a mixture of linear and branched aldehyde products. The complex catalyst selectively converts the alpha and beta olefin reactants more rapidly than the iso-olefin reactant resulting in an improved molar ratio of normal (linear) to branched aldehyde products. The unconverted iso-olefinic isomer is thereafter readily separated from the aldehyde product mixture.Type: ApplicationFiled: April 3, 2008Publication date: February 25, 2010Inventors: Michael A. Brammer, Wei-Jun Peng, John M. Maher
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Publication number: 20090182116Abstract: A series of novel phosphorus-containing compounds having the following formula are disclosed: wherein Q, R5, Ar1, Ar2, A, and B are as defined in the specification. The present invention provides a process for the preparation of the compound of formula (I). The present invention also provides a compound of formula (PA) and a process for preparing the same. The present invention further provides a compound of formula (PI) and a process for preparing the same.Type: ApplicationFiled: January 14, 2009Publication date: July 16, 2009Applicant: National Chung Hsing UniversityInventors: Ching-Hsuan LIN, Chia Wei CHANG, Tsung Li LIN
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Publication number: 20090060866Abstract: Provided herein are phosphadiazine polymerase inhibitor, for example, of any of Formula I, II, III, I?, II?, I?, II?, Ia, IIa, or IIIa, pharmaceutical compositions comprising the compounds, and processes of preparation thereof. Also provided are methods of their use for the treatment of an HCV infection in a host in need thereof.Type: ApplicationFiled: August 27, 2008Publication date: March 5, 2009Applicant: Idenix Pharmaceuticals, Inc.Inventors: Cyril Dousson, Dominique Surleraux, Arlene Roland, Claire Pierra, Daniel Da Costa
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Publication number: 20080182086Abstract: An ink-jet ink is provided. The ink-jet ink includes a compound of formula (1) to form a cured film with high-flame retardancy.Type: ApplicationFiled: January 29, 2008Publication date: July 31, 2008Applicant: CHISSO CORPORATIONInventors: HIROYUKI SATOU, SETSUO ITAMI, YOSIHIRO DEYAMA
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Patent number: 7355073Abstract: A diazaphosphacycle may be synthesized by reacting a phosphine with a diimine and optionally one or more equivalents of an acid halide, a sulfonyl halide, a phosphoryl halide, or an acid anhydride in the substantial absence of O2 to form the diazaphosphacycle. The phosphine has the formula R1—PH2 where R1 is a substituted or unsubstituted aryl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted cycloalkyl group, or a substituted or unsubstituted ferrocenyl group.Type: GrantFiled: February 26, 2004Date of Patent: April 8, 2008Assignee: Wisconsin Alumni Research FoundationInventors: Clark R. Landis, Wiechang Jin, Jonathan S. Owen, Thomas P. Clark
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Patent number: 7355072Abstract: Transition metal complexes include a diazaphosphacycle of formula III and a transition metal. The phosphorus atom of the diazaphosphacycle is bonded to the transition metal and the diazaphosphacycle of formula III has the following structure where the variables have the values set forth herein.Type: GrantFiled: February 26, 2004Date of Patent: April 8, 2008Assignee: Wisconsin Alumni Research FoundationInventors: Clark R. Landis, Wiechang Jin, Jonathan S. Owen, Thomas P. Clark
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Patent number: 7105689Abstract: A compound of formula (I) suitable as a catalyst or for the preparation of a catalyst system: L1-X-L2 ??(I) is provided, in which X is a lower alkylene group, an arylene group or an alkarylene group; L1 is in which Y1 is oxygen, sulfur or N—R17, R11, R12, R13, R14, R15, R16 and R17 independently of one another being hydrogen, alkyl or aryl; and L2 is in which Y2 is oxygen, sulfur or N—R27, R21, R22, R23, R24, R25, R26 and R27 independently of one another being hydrogen, alkyl or aryl, it being possible for L1 and L2 to be identical or different.Type: GrantFiled: January 26, 2002Date of Patent: September 12, 2006Assignee: BASF AktiengesellschaftInventors: Michael Slany, Martin Schäfer, Michael Röper
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Patent number: 7081544Abstract: The invention relates to novel chiral ligands of formula (I), the production thereof and the use of the same in catalytic reactions.Type: GrantFiled: June 18, 2002Date of Patent: July 25, 2006Assignee: Degussa AGInventors: Matthias Beller, Kathrin Junge, Axel Monsees, Thomas Riermeier, Harald Trauthwein
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Patent number: 7071357Abstract: A diazaphosphacycle may be synthesized by reacting a phosphine with a diimine and optionally one or more equivalents of an acid halide, a sulfonyl halide, a phosphoryl halide, or an acid anhydride in the substantial absence of O2 to form the diazaphosphacycle. The phosphine has the formula R1—PH2 where R1 is a substituted or unsubstituted aryl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted cycloalkyl group, or a substituted or unsubstituted ferrocenyl group.Type: GrantFiled: July 23, 2001Date of Patent: July 4, 2006Assignee: Wisconsin Alumni Research FoundationInventors: Clark R. Landis, Wiechang Jin, Jonathan S. Owen, Thomas P. Clark
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Patent number: 7053138Abstract: Compounds of formula (I) or (II), wherein R1 is C1–C18alkyl; C5–C12cycloalkyl that is unsubstituted or substituted by one or more C1–C6alkyl groups or C1–C6alkoxy groups; C5–C22aryl that is unsubstituted or substituted by one or more C1–C6alkyl groups or C1–C6alkoxy groups; or C7–C30aralkyl that is unsubstituted or substituted by one or more C1–C6alkyl groups or C1–C6alkoxy groups, and the radicals R2 to R13 are each independently of the others hydrogen; —NO2; dialkylamino; alkylthio; alkylsulfonyl; halogen; C1–C18alkyl; C1–C18alkoxy; C1–C18alkoxyalkyl; C5–C12cycloalkyl that is unsubstituted or substituted by one or more C1–C6alkyl groups or C1–C6alkoxy groups; C5–C22aryl that is unsubstituted or substituted by one or more C1–C6alkyl groups or C1–C6alkoxy groups; or C7–C30aralkyl that is unsubstituted or substituted by one or more C1–C6alkyl groups or C1–C6alkoxy groups, are suitable as flame-proofing agents for thermoplastic or thermosetting polymersType: GrantFiled: November 20, 2001Date of Patent: May 30, 2006Assignee: Huntsman Advanced Materials Americas Inc.Inventors: Franck Magendie, Ulrich Weidmann
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Patent number: 6900352Abstract: A novel class of chiral phosphine ligands useful for producing catalyst for asymmetric reactions with general structure of Formula 1:Type: GrantFiled: February 25, 2003Date of Patent: May 31, 2005Assignee: Advanced SynTech, LLCInventors: Zeng Fu Wang, Kexin Yang, Boliang Lou
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Publication number: 20040249184Abstract: The invention relates to novel chiral ligands of formula (I), the production thereof and the use of the same in catalytic reactions.Type: ApplicationFiled: April 8, 2004Publication date: December 9, 2004Inventors: Matthias Beller, Kathrin Junge, Axel Monsees, Thomas Riermeier, Harald Trauthwein
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Publication number: 20040110975Abstract: The invention is concerned with new phosphine ligands of formula I 1Type: ApplicationFiled: November 21, 2003Publication date: June 10, 2004Inventors: Piotr Osinski, Kazimierz Michal Pietrusiewicz, Rudolf Schmid
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Publication number: 20040092388Abstract: Phosphine compounds represented by the following formula (1): 1Type: ApplicationFiled: November 6, 2003Publication date: May 13, 2004Applicant: TAKASAGO INTERNATIONAL CORPORATIONInventors: Hideo Shimizu, Takao Saito, Izuru Nagasaki
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Publication number: 20040059157Abstract: The invention relates to a compound of formula (I) wherein X represents a low alkylen group, an arylene group or an alkarylene group, L1 has formula (II) wherein Y1 represents oxygen, sulphur or N—R17, R11, R12, R13, R14, R15, R16, R17 independently represent hydrogen, alkyl or aryl, L2 has formula (III) wherein Y2 represents oxygen, sulphur or N—R27, R21, R22, R23, R24, R25, R26, R27 independently represent hydrogen, alkyl or aryl wherein L1 and L2 can be identical or different. The inventive compound is suitable for use as a catalyst or for producing a catalyst system.Type: ApplicationFiled: August 6, 2003Publication date: March 25, 2004Inventors: Michael Slany, Martin Schafer, Michael Roper
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Publication number: 20030225226Abstract: Novel reactions used to prepare phosphole and bisphosphole compounds are detailed. Novel phosphole compounds and metal coordination compounds of phosphole and bisphosphole compounds are also provided. These metal coordination compounds are useful as catalysts for the polymerization or olefins with carbon monoxide and for the polymerization of acrylic monomers.Type: ApplicationFiled: April 11, 2003Publication date: December 4, 2003Inventors: Paul J. Fagan, George Yanwu Li, Zhibin Guan, Lin Wang
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Patent number: 6613848Abstract: A hardener for an epoxy resin comprises a phenolic, thiophenolic, aminophenyl, tris-phenolic, tris-thiophenolic, tris-aminophenyl, tetrakis-phenolic, tetrakis-thiophenolic, or tetrakis-aminophenyl compounds; or phenol-formaldehyde or phenol-formaldehyde/melamine-formaldehyde resins wherein the phenyl rings are substituted with at least one of the structures wherein R1 and R2 independently are H, C1-C18 alkyl, C6-C18 aryl, C6-C18 substituted aryl, C6-C18 aryl methylene, or C6-C18 substituted aryl methylene; X is O, S or NH and Ar is wherein R is C1-C4 alkyl and n=0-5.Type: GrantFiled: May 16, 2000Date of Patent: September 2, 2003Assignee: National Science CouncilInventors: Chun-Shan Wang, Jeng-Yueh Shieh
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Patent number: 6569967Abstract: The invention concerns alkoxyamines derived from &bgr;-phosphorous nitroxides corresponding to formula (I). Said compounds can be used as (co)polymerization initiators of at least a monomer polymerizable by radical polymerization.Type: GrantFiled: March 19, 2002Date of Patent: May 27, 2003Assignee: AtofinaInventors: Jean-Luc Couturier, Christiane Henriet-Bernard, Christophe Le Mercier, Paul Tordo, Jean-Francois Lutz
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Publication number: 20030040643Abstract: The phenoxyphosphazene compound of the present invention is prepared by treating a phenoxyphosphazene compound with (a) at least one adsorbent selected from activated carbon, silica gel, activated alumina, activated clay, synthetic zeolite and macromolecular adsorbents, (b) at least one reagent selected from metal hydrides, hydrazine, hypochlorites, thiosulfates, dialkyl sulfuric acids, ortho esters, diazoalkanes, lactones, alkanesultones, epoxy compounds and hydrogen peroxide or (c) both the adsorbent and reagent.Type: ApplicationFiled: January 2, 2002Publication date: February 27, 2003Inventors: Shinji Nakano, Yuji Tada, Tadao Yabuhara, Takashi Kameshima, Yoichi Nishioka, Hiroyuki Takase
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Publication number: 20020169340Abstract: Novel reactions used to prepare phosphole and bisphosphole compounds are detailed. Novel phosphole compounds and metal coordination compounds of phosphole and bisphosphole compounds are also provided. These metal coordination compounds are useful as catalysts for the polymerization or olefins with carbon monoxide and for the polymerization of acrylic monomers.Type: ApplicationFiled: November 13, 2001Publication date: November 14, 2002Inventors: Paul J. Fagan, George Yanwu Li, Zhibin Guan, Lin Wang
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Patent number: 6413947Abstract: This invention is to provide a compound of the formula: wherein R1 is an optionally substituted 5- to 6-membered ring; W is a divalent group of the formula: wherein the ring A is an optionally substituted 5- to 6-membered aromatic ring, X is an optionally substituted C, N or O atom, and the ring B is an optionally substituted 5- to 7-membered ring; Z is a chemical bond or a divalent group; R2 is (1) an, optionally substituted amino group in which a nitrogen atom may form a quaternary ammonium, etc., or a salt thereof, which is useful for antagonizing MCP-1 receptor.Type: GrantFiled: September 13, 2000Date of Patent: July 2, 2002Assignee: Takeda Chemical Industries, Ltd.Inventors: Mitsuru Shiraishi, Takahito Kitayoshi, Yoshio Aramaki, Susumu Honda, Tsuneo Oda
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Patent number: 6399805Abstract: Compounds of the formula I R1 and R2 independently of one another are C1-C20alkyl, OR11, CF3 or halogen; R3, R4 and R5 independently of one another are hydrogen, C1-C20alkyl, OR1 or halogen; R6, R7, R8, R9 and R10 independently of one another are hydrogen, C1-C20alkyl; C2-C20alkyl which is interrupted once or more than once by nonconsecutive O atoms and which is unsubstituted or substituted by OH and/or SH; or R6, R7, R8, R9 and R10 are OR11, SR11, N(R12)(R13), phenyl or halogen; R11 is C1-C20alkyl, C3-C8cycloalkyl, phenyl, benzyl or C2-C20alkyl which is interrupted once or more than once by O or S and which is unsubstituted or substituted by OH and/or SH; R12 and R13 independently of one another are hydrogen, C1-C20alkyl, C3-C8cycloalkyl, phenyl, benzyl or C2-C20alkyl which is interrupted once or more than once by nonconsecutive O atoms and which is unsubstituted or substituted by OH and/or SH; or R12 and R13 together are C3-C5alkylene which can be interrupted by O, S or NR14; R14 is hydrogType: GrantFiled: February 5, 2001Date of Patent: June 4, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Jean-Pierre Wolf, Beat Michael Aebli, Gebhard Hug
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Patent number: 6255532Abstract: A process for the preparation of phosphabenzene compounds of the formulae I and II where R1 to R6, independently of one another, are hydrogen, COOM SO3M, NR3X, NR2, OR, COOR or SR, where M is hydrogen, NH4 or an alkali metal, X is an anion, R is hydrogen, C1-6-alkyl, or C1-12-alkyl, C6-12-aryl, C7-12-aralkyl or C3-6-heterocycloalkyl having 1 to 3 heteroatoms which may be substituted by the above radicals or linked to form fused rings, and —W— is a bridge comprising a covalent bond, an oxo group, a sulfur group, an amino group, a di-C1-6-alkylsilicon group or a C1-16-radial, which may be part of one or more linked cyclic or aromatic rings and may be interrupted by 1 to 3 heteroatoms, where the phosphabenzene ring o- or m-position not bonded to the bridge may carry one of the radicals R1 to R6, with the exception of bis-3,3′-(2,4,6-triphenyl-3-phosphabenzene)-1,1-biphenyl, by reacting corresponding pyrilium salts with PH3 in the presence of a catalytic amount of acid and inType: GrantFiled: March 30, 2000Date of Patent: July 3, 2001Assignee: BASF AktiengesellschaftInventors: Rocco Paciello, Edgar Zeller, Bernhard Breit, Michael Röper
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Patent number: 6252117Abstract: Phosphabenzene compounds of the formulae I and II where R1 to R6 are identical or different and are, for example, hydrogen, are prepared by reacting corresponding pyrylium salts with PH3 in the presence or absence of a solvent or diluent. The pyrylium salts are combined with PH3 at above 0° C. and reacted at a temperature in the range from 0° C. to 200° C. and a pressure above 1 bar without addition of an acid catalyst or a base.Type: GrantFiled: March 14, 2000Date of Patent: June 26, 2001Assignee: BASF AktiengesellschaftInventors: Thomas Mackewitz, Michael Röper, Bernhard Breit
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Patent number: 6166006Abstract: This invention is to provide a compound of the formula: ##STR1## wherein R.sup.1 is an optionally substituted 5- to 6-membered ring: C is a divalent group of the formula: ##STR2## wherein the ring A is an optionally substituted 5- to 6-membered aromatic ring, X is an optionally substituted C, N or O atom, and the ring B is an optionally substituted 5- to 7-membered ring; Z is a chemical bond or a divalent group; R.sup.2 is (1) an optionally substituted amino group in which a nitrogen atom may form a quaternary ammonium, etc., or a salt thereof, which is useful for antagonizing MCP-1 receptor.Type: GrantFiled: December 17, 1998Date of Patent: December 26, 2000Assignee: Takeda Chemical Industries, Ltd.Inventors: Mitsuru Shiraishi, Takahito Kitayoshi, Yoshio Aramaki, Susumu Honda, Tsuneo Oda
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Patent number: 6034240Abstract: Novel aminomethylphosphine ligands have particular substituents on the central carbon atom. Such ligands form coordination complexes that may be catalysts for the polymerization of monomers or other catalytic induced reactions.Type: GrantFiled: March 9, 1998Date of Patent: March 7, 2000Assignee: Symyx Technologies, Inc.Inventor: Anne Marie La Pointe
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Patent number: 5300686Abstract: Organophosphorus dihalides can have one of their halogen substituents substituted with an alkyl group from a trialkylaluminum by gradual addition of the latter reagent to the former.Type: GrantFiled: January 19, 1990Date of Patent: April 5, 1994Assignee: Akzo nvInventor: Jeffrey E. Telschow
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Patent number: 5177230Abstract: Chiral 2,5-disubstituted phospholanes useful as transition metal ligands in asymmetric catalysis and processes for their preparation are disclosed.Type: GrantFiled: January 23, 1991Date of Patent: January 5, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventor: Mark J. Burk
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Patent number: 4922012Abstract: Novel organic tertiary phosphine oxides for example, bidentate organophosphorus actinide extractants, such as the carbamoylmethylphosphine oxides (CMPO's) are disclosed, such compounds can be prepared (e.g., in 85% or better yield and purity) by a process involving phase transfer catalysis, under conditions where degradive hydrolysis of the products or reactants is substantially avoided. For example, tertiary carbamoylmethylphosphine oxides which are useful as extractants for transplutonium elements are disclosed and can be prepared by reaction of the corresponding secondary phosphine oxides with 2-substituted acetamides (wherever the substituent is a good leaving group, e.g., chlorine) in a two-phase system containing a high concentration of an aqueous base (preferably sodium hydroxide) and a suitable phase transfer catalyst, e.g., tetralkylammonium chlorides.Type: GrantFiled: January 12, 1984Date of Patent: May 1, 1990Assignee: Occidental Chemical CorporationInventor: Kenneth M. Kem
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Patent number: 4642382Abstract: The title compounds correspond to the formula ##STR1## and are useful as stabilizers for organic polymers and lubricating oils to counteract the degradative effects of heat, light and air.Type: GrantFiled: July 18, 1985Date of Patent: February 10, 1987Assignee: Ciba-Geigy CorporationInventors: John D. Spivack, Stephen D. Pastor, Paul Odorisio
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Patent number: RE39682Abstract: Novel farnesyl derivatives which are inhibitors of the prenylated protein methyltransferase enzyme, and useful as anti-cancer drugs, have the following formula: wherein R1represents farnesyl, geranyl or geranyl-geranyl; Z represents C—R6 or N; R2 represents H, CN, the groups COOR7, SO3R7, CONR7R8 and SO2NR7R7, wherein R7 and R8 are each independently hydrogen, alkyl, alkenyl, and the groups COOM and SO3M, wherein M is a cation; R3, R4, R5 and R6 are each independently hydrogen, carboxyl, alkyl, alkenyl, aminoalkyl, nitroalkyl, nitro, halo, amino, mono- or di-alkylamino, mercapto, mercaptoalkyl, azido, or thiocyanato; X represents O, S, SO, SO2, NH or Se; and the quaternary ammonium salts and N-oxides of the compounds of formula I wherein Z is N.Type: GrantFiled: March 30, 2005Date of Patent: June 5, 2007Assignee: Ramot at Tel Aviv University Ltd.Inventor: Yoel Kloog