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8153544 |
Method for preparing non-metallocene catalysts
A method of preparing supported catalysts useful for olefin polymerization is described. The catalysts comprise a Group 4 metal complex that incorporates a tridentate dianionic ligand. An activator...
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8049025 |
Recyclable ruthenium catalysts for metathesis reactions
The invention relates to novel carbene ligands and their incorporated monomeric and resin/polymer linked ruthenium catalysts, which are recyclable and highly active for olefin metathesis reactions....
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8003816 |
Bisphosphite ligands for hydroformylation catalyzed by transition metals
The invention relates to a bisphosphite of the formula I where X=a divalent substituted or unsubstituted bisalkylene or bisarylene radical, Y=a divalent substituted or unsubstituted bisarylene or...
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7998895 |
Catalysts for olefin polymerization
Transition metal complexes of selected monoanionic phosphine ligands, which also contain a selected Group 15 or 16 (IUPAC) element and which are coordinated to a Group 3 to 11 (IUPAC) transition...
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7985869 |
Compositions of AU-11 nanoparticles and their optical properties
As demonstrated herein, the ligand exchange chemistry of phosphine-stabilized Au11 clusters with ω-functionalized thiols is a powerful synthetic method that provides convenient access to a diverse ...
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7964743 |
Catalyst for asymmetric synthesis, ligand for use therein, and process for producing optically active compound through asymmetric synthesis reaction using them
Compounds represented by the following general formula (1a) or (1b). A complex comprising a center metal of rhodium and a compound represented by the following general formula (1a) or (1b) as a...
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7956141 |
Metal complex containing tridentate ligand, and polymerization catalyst comprising the same
The present invention provides 1) a complex comprising a mono-anionictridentate ligand, represented by the following general formula (I); 2) a polymerization catalyst composition, comprising the...
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7947818 |
Heteromolecular metal-humic (chelate) complexes
Heteromolecular metal-humic organic complexes of the type: (A)n-(Metal)x-(B)m where A is one or several humic complexes which may be totally or partially sulfonated or may have been treated with an...
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7906669 |
Metallocene-based phosphorus chiral phosphines
The present invention concerns a metallocene-based phosphine ligand for use in enantioselective catalysis, the ligand having the Formula (I): Wherein M is a metal; Z is P or As; L is a suitable...
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7879776 |
High performance lubricant additives
A lubricant additive produced by the process comprising mixing an organophosphate and an organofluorine compound and reacting the organophosphate and the organofluorine compound to produce a...
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7795430 |
Reversibly reducible metal complexes as electron transporting materials for OLEDs
The invention is reversibly reducible metal complexes and materials and an organic light emitting device, having an anode; a cathode; and at least one organic layer disposed between the anode and...
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7754662 |
High performance lubricants and lubricant additives for crankcase oils, greases, gear oils and transmission oils
A lubricant additive produced by various processes, including mixing an organophosphate and an organofluorine compound, reacting an organophosphate and an organofluorine compound, reacting a...
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7750171 |
Catalyst assembly for hydrosilylation, process for preparing it and silicone compositions incorporating it
Process for preparing catalyst assemblies by mixing a metal catalyst capable of catalyzing a hydrosilylation reaction and an organophosphorus inhibitor of the formula (I) or of formula (VIII)...
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7745627 |
Method for the production of heteroleptic ortho-metallated organometallic compounds
The invention relates to a method for the production of high-purity, heteroleptic, orth-etallated, organometallic compounds of application as a functional material for colouring components in a...
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7705171 |
Process for producing nickel(0)-phosphorus ligand complexes
A process for preparing nickel(0)-phosphorus ligand complexes comprising at least one nickel(0) central atom and at least one phosphorus ligand by reacting a nickel(II) compound with a reducing...
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7679884 |
Organosilicon phosphorus-based electrolytes
Disclosed are electrolytes that are organosilicon phosphorus-based, and supercapacitors which incorporate them. These electrolytes are cationic salts with a phosphorous containing organosilicon...
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7671226 |
Transition metal complex, catalyst for olefin polymerization, and process for producing olefin polymer with the same
The present invention relates to a transition metal complex represented by the formula (I): wherein M represents a Group 4 transition metal; —Y— represents(a): —C(R1)(R20)-A-,(b): —C(R1...
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7670691 |
Cyclometalated transition metal complex and organic electroluminescent display device using the same
A cyclometalated transition metal complex emitting phosphorescence of high efficiency and an organic electroluminescent display device employing the same are provided. The cyclometalated transition...
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7642366 |
Phosphine ligands
The invention is concerned with new phosphine ligands of the formula I wherein R1 and R2 are independently of each other alkyl, aryl, cycloalkyl or heteroaryl, said alkyl, aryl, cycloalkyl or...
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7638653 |
Method of preparing phosphonium compound for cyclic olefin polymerization
Provided is a method of preparing a phosphonium compound by reacting a protic phosphonium compound represented by [(R1)—P(R2)a(R2′)b]HX and a salt compound represented by [C][Ani]. Therefore, a pho...
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7632772 |
Recyclable ruthenium catalysts for metathesis reactions
The invention relates to novel carbene ligands and their incorporated monomeric and resin/polymer linked ruthenium catalysts, which are recyclable and highly active for olefin metathesis reactions....
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7601666 |
Olefin polymerization catalyst system and process for use thereof
A compound represented by the formula: where: M is a transition metal selected from group 4 of the periodic table;each R1 is independently selected from the group consisting of hydrogen,...
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7544800 |
Catalytic depolymerization of polymers containing electrophilic linkages using nucleophilic reagents
A method is provided for carrying out depolymerization of a polymer containing electrophilic linkages in the presence of a catalyst and a nucleophilic reagent, wherein production of undesirable...
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7517828 |
Chiral broensted acid catalyst for asymmetric synthesis and method of asymmetric synthesis with the catalyst
A compound usable as an asymmetric synthesis catalyst which can be easily synthesized without using any metal such as a lanthanoid group element; a method of asymmetric synthesis with the compound;...
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7473792 |
Process for transition metal-catalyzed asymmetric hydrogenation of acrylic acid derivatives, and a novel catalyst system for asymmetric transition metal catalysis
A process for transition metal-catalyzed, asymmetric hydrogenation of acrylic acid derivatives of the formula (I) in which R1 is H or an optionally substituted alkyl, aryl or heteroaryl radical, R2...
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7453005 |
Transition metal compound and catalyst for olefin polymerization
A transition metal compound useful as a component of a catalyst for olefin polymerization and a highly active polymerization catalyst capable of producing a high molecular weight olefin polymer....
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7425656 |
Phosphorus-containing catalyst composition and process for hydroformylation reaction using the same
Provided are a catalyst composition including a transition metal catalyst and a nitrogen-containing bidentate phosphorus compound and a process for hydroformylation reaction of olefins to prepare...
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7378560 |
Ruthenium complex and process for producing tert-alkyl alcohol therewith
A tert-alkyl ketone, pinacolone was hydrogenated under pressurized hydrogen in the presence of a ruthenium complex (S)-1 and a base, and corresponding (S)-3,3,-dimethyl-2-butanol was thereby...
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7355057 |
Liquid transition metal acetylide chromophores
The present invention relates to a series of platinum acetylide nonlinear optical chromophores which are liquid at room temperature. The viscosity of these liquid chromophores is low enough that...
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7306857 |
Binuclear organometallic complexes and organic electroluminescence device using the same
Provided are binuclear organometallic complexes enabling highly efficient phospholuminescence and an organic electroluminescent device using the same. The binuclear organometallic complexes, which...
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7265237 |
Chiral monophosphites as ligands for asymetrical synthesis
Certain chiral monophosphites and their monothio derivatives are suitable as ligands in the asymmetrical transition-metal-catalyzed hydrogenation, hydroborination and hydrocyanation of prochiral...
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7196230 |
Phosoxophite ligands and use thereof in carbonylation processes
A novel organophosphorus composition and synthesis thereof, the composition being characterized by one phosphite moiety, one phosoxophite moiety, and a plurality of sterically bulky substituents....
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7179946 |
Copper complexes and their use
The invention relates to copper complexes of phosphorus compounds, to a process for their preparation and to their use in catalytic coupling reactions.
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7169947 |
Dicopper(I) oxalate complexes for use as precursor substances in metallic copper deposition
The invention relates to dicopper(I) oxalate complexes stabilised by neutral Lewis base components and to the use thereof as precursors for the deposition of metallic copper. The neutral Lewis...
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7161043 |
Process for the carbonylation of ethylenically unsaturated compounds and bidentate diphosphine composition used in this process
Process for the carbonylation of optionally substituted ethylenically unsaturated compounds by reaction with carbon monoxide and a coreactant in the presence of a catalyst system. The catalyst...
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7148356 |
Process for the catalytic synthesis of biaryls and polymers from aryl compounds
A process for producing organic substituted aromatic or heteroaromatic compounds including biaryl and biheteroaryl compounds in a two-step reaction. In the first step, the aromatic or...
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7148174 |
Non-metallocene catalyst system
The present invention describes a novel group of specific transition metal compounds, referred to as nonmetallocene compounds, and catalyst systems prepared therefrom. These catalyst systems which...
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7094723 |
Catalysts containing at least one heterocyclic ligand for improving the catalysts' performance of olefin polymerization
The present invention provides a non-metallocene catalyst comprising a complex having one or more ligands coordinated a transition metal. The catalyst contains substituents bonded to the transition...
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7094725 |
Biphenyldiphosphine compounds
The present invention provides compounds of the formula wherein R is optionally substituted lower alkyl, cycloalkyl or aryl;R′ is alkyl or aryl;n is zero or an integer of 1 or 2; or an enantiomer t...
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7084287 |
Method of removing palladium
There is disclosed a method for removing palladium, which method is characterized by contacting a solution containing a palladium complex containing a phosphorus-type ligand in an organic solvent...
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7078552 |
Combretastatin A-1 phosphate and combretastatin B-1 phosphate prodrugs
The present invention relates to the syntheses and structural elucidation of Combretastatin A1-Phosphate Prodrugs and Combretastatin B1-Phosphate Prodrugs and the utilization of those prodrugs in...
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7067074 |
Near-infrared-absorbing composition and optical material
A near infrared absorptive composition of the present invention contains phosphate compounds represented by Formula (8)-c and Formula (8)-d below; and copper ions. An optical material of the...
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6984602 |
Olefin polymerization catalysts containing a pyrrole bisimine ligand
Polydentate substituted pyrrole based chelants, metal complexes containing the same, olefin polymerization catalyst compositions, and polymerization processes using the same.
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6969694 |
Chiral phosphines, transition metal complexes thereof and uses thereof in asymmetric reactions
Chiral ligands and transition metal complexes based on such chiral ligands useful in asymmetric catalysis are disclosed. The chiral ligands include (R,S,S,R)-DIOP*. The ruthenium complex reduces...
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6951953 |
Tumor selective and biodegradable polyphosphazene-platinum(II) conjugate antitumor agent, and preparation method thereof
Disclosed are a new class of a polyphosphazene-platinum(II) conjugate antitumor agent having high tumor tissue selectivity due to its enhanced permeability and retention effect to tumor tissues,...
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6914109 |
Process for the preparation of 15-pentadecanolide
The invention relates to a process for the preparation of 15-pentadecanolide by hydrogenating 15-pentadecenolide and to its use.
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6897272 |
α-olefins and olefin polymers and processes therefor
Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The...
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6855657 |
Ortho substituted chiral phosphines and phosphinites and their use in asymmetric catalytic reactions
3,3′-Substituted chiral biaryl phosphine and phosphinite ligands and metal complexes based on such chiral ligands useful in asymmetric catalysis are disclosed. The metal complexes are useful as c...
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6846433 |
Liquid crystalline polyester resin composition and molded product thereof
By means of a liquid crystalline polyester resin composition containing 100 parts by weight of a liquid crystalline polyester forming an anisotropic melt phase, and not less than 0.01 part by...
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6812306 |
Metallic compounds and the use thereof in the polymerization of olefins
Metal compounds of the formula I, where M is selected from among Ni and Pd in the oxidation state +II can be used for the polymerization or copolymerization of olefins. Supported catalysts for the...
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