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7622590 |
Catalyst complex with carbene ligand
Catalytic complexes including a metal atom having anionic ligands, at least one nucleophilic carbene ligand, and an alkylidene, vinylidene, or allenylidene ligand. The complexes are highly stable...
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7598330 |
Cross-metathesis of olefins directly substituted with an electron-withdrawing group using transition metal carbene catalysts
The invention pertains to the use of Group 8 transition metal alkylidene complexes as catalysts for olefin cross-metathesis reactions. In particular, ruthenium and osmium alkylidene complexes...
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7553924 |
Catalytic carbon-carbon bond formation
The present invention mainly relates to a carbon-carbon bond formation catalyzed by a complex comprising a novel and stable ligand and a metal center. The ligand uses a ring, particularly a phenyl...
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7524906 |
Process for the preparation of a metal-organic compound comprising at least one imine ligand
The invention relates to a process for the preparation of a metal-organic compound, comprising at least one imine ligand, characterized in that an imine ligand according to formula 1, or the HA...
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7507782 |
Transition-metal complexes with tridentate, nitrogen-containing ligands
Transition metal complexes with tridentate, nitrogen-containing, uncharged ligand systems, a catalyst system comprising at least one of the transition metal complexes, the use of the catalyst...
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7491671 |
Phospholane salts and their use in enantioselective hydrogenation
Process for preparing a catalyst solution by reacting metal complexes and diphosphines in the presence of an inert organic solvent, which is characterized in that a) an uncharged or cationic metal...
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7414155 |
Process for the hydroformylation of an ethylenically unsaturated compound
Process for the hydroformylation of an optionally substituted ethylenically unsaturated compound by reaction thereof with carbon monoxide and hydrogen in the presence of a specific catalyst system...
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7375242 |
Catalysts for olefin polymerization
Selected nickel complexes of the anions of certain 2-aminotropones are olefin polymerization catalysts. Novel 2-aminotropones and their nickel complexes are also disclosed together with methods of...
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7361776 |
Zero-valent transition metal complex and method for producing an organometallic compound using the same as a starting material
The present invention relates to a zero-valent transition metal complex which can be used as a starting material for producing a catalyst usable for producing a polyolefin by ring-opening...
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7358209 |
Polymerisation catalysts
A transition metal complex having the following Formula (A): wherein the monovalent groups R 1 and R 2 are —R a , —OR b , —NR c R d , and —NHR e : the monovalent groups R a , R b , R c ,...
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7351845 |
Transition metal polymerization catalysts, their synthesis and use in olefin polymerization
A transition metal ligand complex has the following formula:
wherein R 1 and R 2 (each occurrence) independently represent an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms; R...
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7320835 |
Phosphorescent material
An organometallic complex, comprises at least one transition metal, at least one first monoanionic bidentate ligand coordinated through a nitrogen on a heteroaromatic ring and a carbon, and at...
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7312347 |
Substituted optically active disphosphine compound
Provided is a method for producing an optically active compound, in more detail, for producing an optically active compound by asymmetric hydrogenation in a high yield and asymmetric yield. The...
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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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7294601 |
Phosphines, transition metal complexes containing the same as the ligand, and process for production of optically active carboxylic acids
[PROBLEMS] To provide a method by which desired optically active carboxylic acids may be prepared from a carboxylic acid having a carbon-carbon double bond through asymmetric hydrogenation with a...
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7288666 |
High metathesis activity ruthenium and osmium metal carbene complexes
Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic...
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7279588 |
Dinuclear metal complex and pyrophosphate assay using the same
A novel coordination complex formed by dinuclear metal complexation is provided. The complex is a dinuclear metal complex of a compound, wherein the compound comprises a conjugation ring system...
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7279537 |
Transition metal complexes and polymerization catalysts
There are provided a transition metal complex of formula (1):
wherein M represents an element of Group 6 of Periodic Table of Elements, A and A′ are the same or different, and represent a...
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7271276 |
Metal complexes for catalytic carbon-carbon bond formation
The present invention relates to a complex comprising a novel and stable ligand and a metal center. The ligand contains a ring, particularly a phenyl group, or a hydrocarbon group which links an...
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7268211 |
Removal of ruthenium by-product by supercritical fluid processing
A process for removing ruthenium or ruthenium-containing compounds from a reaction mixture comprising a compound of the following formula I in an organic solvent using supercritical fluid...
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7238818 |
Heterocyclic metallocenes and polymerization catalysts
A new class of heterocyclic metallocenes, a catalytic system containing them and a process for polymerizing addition polymerizable monomers using said catalytic system are disclosed; the...
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7235696 |
Chiral diphosphinoterpenes and transition metal complexes thereof
The present invention relates to chiral diphosphinoterpenes and transition metal complexes thereof, to a process for preparing chiral diphosphinoterpenes and oxides thereof, and to transition metal...
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7205424 |
Preparation of ruthenium-based olefin metathesis catalysts
A synthetic method leading to the isolation of ruthenium-based olefin metathesis catalysts relies on the cross metathesis reaction between (L 1 )Ru(L 2 )(3-phenylindenylid-1-ene)Cl 2 (where L 1 ...
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RE39561 |
Metallocenes containing ligands of 2-substituted indenyl derivatives, process for their preparation, and their use as catalysts
The novel metallocenes of the formula I
in which, preferably, M 1 is Zr or Hf, R 1 and R 2 are alkyl or halogen, R 3 and R 4 are hydrogen, R 5 and R 6 are alkyl or haloalkyl, —(CR 8 R...
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7183374 |
Method of removing transition metals
A process for diminishing the concentration of a metal complex from a solution containing said complex by the addition of an optionally fused and/or optionally substituted heterocyclic compound....
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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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7145027 |
Method for producing chlorotris(triphenylphosphine) rhodium (i)
A process is described for the manufacture of chlorotris(triphenylphosphine)-rhodium(1) by means of causing a reaction of RhCl 3 solution with triphenylphosphin in mixtures of C2–C5 alcohols...
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7135582 |
Transition metal complex having diphosphine compound as ligand
A transition metal complex having 2,2′-bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-
1,1′-binaphthyl as a ligand. The presence of the transition metal complex in the reaction system of...
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7129367 |
Phosphine compound, its intermediate, its complex with palladium and a manufacturing method of unsaturated compounds by using the palladium complex
Palladum-phosphine complexes obtained by reacting a 5 compound of formula (1) below with a palladium compound: F(I) (wherein R 1 is a hydrogen atom, an alkyl group, a cycloalkyl group or a phenyl...
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7109344 |
Ruthenium catalyst
The invention relates to new (pre)catalysts of ruthenium complexes of formula 1,
wherein L 1 , X 1 , X′ 2 , R 1 , R 2 , R 3 , Z and n are as defined in claim 1. The novel ruthenium complexes...
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7105689 |
Compound suitable for use as a catalyst or for producing a catalyst system derived from a bis-phosphorinane
A compound of formula (I) suitable as a catalyst or for the preparation of a catalyst system:
L 1 -X-L 2 (I)
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7102047 |
High metathesis activity ruthenium and osmium metal carbene complexes
Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic...
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7101959 |
Polymerization catalysts
A subject of the present invention is new compounds having a lanthanide and having a tridentate ligand, a process for their preparation and their use in particular as polymerization catalysts.
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7094898 |
Ruthenium compounds, their production and use
A new class of compounds is disclosed that in preferred embodiments relate to Ru-based catalysts suitable for use in olefin metathesis reactions. Such compounds demonstrate high rates of catalytic...
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7087773 |
Group 4 metal complexes containing 4-aryl-substituted, tricyclic indenyl derivatives
Group 4 metal constrained geometry complexes comprising tricyclic 4-arylsubstituted indenyl ligands, especially 1,5,6,7-tetrahydro-4-aryl-s-indacen-1-yl ligands, catalytic derivatives thereof,...
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7084288 |
Organometallic precursor for forming metal film or pattern and method of forming metal film or pattern using the same
The object of this invention is to provide an organometallic precursor for forming a metal film or pattern and a method of forming the metal film or pattern using the same. More particularly, the...
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7081533 |
Cycloaliphatic/aromatic diphosphines and use thereof in catalysis
The present invention concerns novel unsymmetrical chiral diphosphines of a mixed aliphatic-aromatic type and processes for synthesizing them, complexes of these compounds and their use as catalysts.
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7060848 |
Bridged bi-aromatic catalysts, complexes, and methods of using the same
Ligands, compositions, metal-ligand complexes and arrays with substituted bridged bis-biaromatic ligands, and methods of making and using the same, are disclosed that are useful in the catalysis of...
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7056854 |
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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7034093 |
Catalysts for olefin polymerization
Late transition metal complexes of certain neutral iminophosphine ligands are useful as components of polymerization catalysts for olefins. Useful metals in the complexes include Ni, Pd, Fe and Co....
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7026495 |
Chelating carbene ligand precursors and their use in the synthesis of metathesis catalysts
Chelating ligand precursors for the preparation of olefin metathesis catalysts are disclosed. The resulting catalysts are air stable monomeric species capable of promoting various metathesis...
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6992202 |
Single-source precursors for ternary chalcopyrite materials, and methods of making and using the same
A single source precursor for depositing ternary I-III-VI 2 chalcopyrite materials useful as semiconductors. The single source precursor has the I-III-VI 2 stoichiometry “built into” a single...
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6984744 |
Phosphine ligands
The invention is concerned with new phosphine ligands of formula I
wherein
R 1 and R 2 are independently of each other unsubstituted alkyl, aryl, cycloalkyl or heteroaryl, or alkyl, aryl,...
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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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6939982 |
Recyclable chiral metathesis catalysts
The present invention relates to chiral metal catalysts for stereoselective olefin metathesis reactions, which are recyclable and reusable in such metathesis reactions. The chiral metal-based...
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6939981 |
Ruthenium complexes of phosphine-aminophosphine ligands
Disclosed are ruthenium complexes of phosphine-aminophosphine ligands that may be used to catalyze large number of reactions of a wide variety of substrates such as asymmetric hydrogenations,...
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6927262 |
Bridged biphospholes and metallocenes prepared therefrom
The invention relates to novel bridged biphosphole ligands according to the general formula:
where R 2 , R 3 , R 4 are chosen from hydrogen, alkyl, aryl or silyl, R 1 is chosen from...
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6919412 |
Monocyclopentadienyl complexes of chromium, molybdenum or tungsten with a donor bridge
Substituted monocyclopentadienyl, monoindenyl, monofluorenyl or heterocyclopentadienyl complexes of chromium, molybdenum or tungsten, wherein at least one of the substituents of the...
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6884859 |
Ring-opening metathesis polymerization of bridged bicyclic and polycyclic olefins containing two or more heteroatoms
A method is provided for synthesizing a polymer in a controlled fashion using a ring-opening metathesis polymerization (ROMP) reaction, wherein polymerization is carried out using a catalytically...
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