| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 556019000 |
Carbon bonded directly to the phosphorus
| 45 |
| 556014000 |
Additional diverse heavy metal or aluminum containing
| 11 |
| 556018000 |
Plural phosphori bonded directly to the same carbon or attached to each other by an acyclic chain which chain consists of carbons or of carbons and chalcogens
| 11 |
| 556017000 |
Plural phosphori bonded directly to the same nitrogen or chalcogen (e.g., pyrophosphates, etc.)
| 7 |
| 556015000 |
The heavy metal is bonded directly to the carbon of a -C(=X)- group, wherein X is chalcogen (e.g., cyclopentadienyl manganese dicarbonyl triphenyl phosphine, etc.) | 5 |
| 20100145087 | IRON(II) CATALYSTS CONTAINING DIIMINO-DIPHOSPHINE TETRADENTATE LIGANDS AND THEIR SYNTHESIS - New hexa-coordinate iron (II) complexes comprising compounds of formula (I) are described. These compounds comprise a tetradentate ligand with donor atoms comprising nitrogen and phosphorus. These complexes are shown for the first time to be useful catalysts for the hydrogenation of ketones, aldehydes, or imines to produce alcohols or amines, and the asymmetric hydrogenation of prochiral ketones or imines to produce non-racemic alcohols or amines. The source of the hydrogen can be hydrogen gas or a hydrogen-donating molecule such as isopropanol or hydrogen-donating mixture such as formic acid and an amine depending on the structure of the catalyst. In certain embodiments, the axial ligands on the catalyst comprise organonitrile ligands, carbonyl ligands, isonitrile ligands, or combinations thereof. The catalysts and the preparation thereof are disclosed. A reaction using phosphine and diamine precursors that is templated by the iron ion is the preferred route to the catalysts. | 06-10-2010 |
| 20110160474 | C2-SYMMETRICAL RUTHENOCENE DIPHOSPHINE LIGANDS ONLY WITH SURFACE CHIRALITY AND THEIR MANUFACTURE - The invention affords C | 06-30-2011 |
| 20130018199 | CALIXARENE-BOUND IRIDIUM-CONTAINING METAL COLLOIDS - The invention provides complexes in which a calixarene-related compound is coordinated to an iridium-containing metal colloid. The complexes can be immobilized on a substrate. The complexes of the invention are useful as tunable and highly robust isolated metal colloids that find use in binding of molecules and catalysis of chemical reactions. | 01-17-2013 |
| 20140088318 | Synthesis and Characterization of Open Metal Clusters - The present invention is directed to the synthesis of novel stable open metal clusters by selective oxidation of bound ligands. The synthesis comprises, for example, using an amine based oxidant for decarbonylation of specific carbonyl ligands. The synthesis can also comprise further removal of a bound amine group by an acid. The resulting metal cluster contains a coordinatively unsaturated site comprising a carbonyl vacancy. The resulting metal cluster can be used as a catalyst in a variety of chemical transformations. | 03-27-2014 |
| 20150141685 | PROCESS FOR PREPARING DIKETONATO-RHODIUM(I)-CARBONYL COMPLEXES - The invention relates to a process for preparing diketonato-rhodium(I)-carbonyl complexes, especially diketonato-rhodium(I)-triorganophosphine-carbonyl complexes, for example Rh(CO)(PPh | 05-21-2015 |
| 556024000 |
Exactly four chalcogens bonded directly to the phosphorus (e.g., phosphates, orthophosphates, etc.) | 3 |
| 20100228044 | METHOD OF PRODUCING RARE EARTH SALT OF DIALKYL PHOSPHATE OR DIOLEYL PHOSPHATE - There is provided a method of producing a rare earth salt of a dialkyl phosphate or a rare earth salt of dioleyl phosphate of a high purity useful as a polymerization catalyst of a conjugated diene compound by directly reacting a rare earth oxide or a rare earth hydroxide with a dialkyl phosphate or dioleyl phosphate of a high purity. In the invention, the rare earth oxide or rare earth hydroxide is reacted with the dialkyl phosphate or dioleyl phosphate of a high purity in a non-polar solvent in the presence of at least one compound selected from a halogenated hydroacid, phosphorous acid and a rare earth halide made from the same element as in an objective product as a catalyst. | 09-09-2010 |
| 20100280264 | PRODUCTION OF ORGANIC SOLVENT SOLUTIONS OF RARE-EARTH ORGANOPHOSPHATES - Solutions of rare-earth organophosphates in an organic solvent are prepared by reacting, in such solvent, a rare-earth compound selected from among the rare-earth oxides, hydroxides, carbonates and hydroxycarbonates with an organophosphorus acid and in the presence of a reaction promoter selected from among water, nitric, hydrochloric, acetic, formic and propionic acids and the rare-earth salts of these acids; utilizing a reaction promoter simplifies the method, reduces the reaction time and provides a solution in which the residual solids content may be low. | 11-04-2010 |
| 20110009657 | Method for the Synthesis of a Rare-Earth Organophosphate and Use Thereof for Preparing a Preformed Catalytic System - A process for preparing a rare-earth organophosphate in the form of a gel that can be used as is for the preparation of a “preformed” catalyst system intended, in particular, for the cis-1,4 stereospecific polymerization of conjugated dienes. | 01-13-2011 |
| Entries |
| Document | Title | Date |
|---|
| 20080221345 | Use of a Phosphorus Containing Ligand and a Cyclic Organic Ligand in a Transition Metal Compound - According to the present invention there is provided a compound in the form of a transition metal compound including a transition metal, a phosphorus containing ligand, and a cyclic organic ligand. The phosphorus containing ligand is a heterocyclic organic compound with a ligating phosphorus atom which ligates with the transition metal, and which ligating phosphorus atom is an atom in the heterocyclic ring structure of the heterocyclic organic compound. The cyclic organic ligand is a cyclic organic compound with a ligating carbon atom in the cyclic ring structure of the cyclic organic compound which ligates with the transition metal by means of a double bound. The invention also relates to a method preparing such a compound and a metathesis reaction wherein such a compound is used as a catalyst. | 09-11-2008 |
| 20090054671 | 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 agent in the presence of the ligand to give a reaction mixture, wherein
| 02-26-2009 |
| 20090156849 | 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). | 06-18-2009 |
| 20090326253 | NOVEL PHOSPHINE LIGANDS - The invention is concerned with new phosphine ligands of the formula I | 12-31-2009 |
| 20100036143 | BISPHOSPHITE LIGANDS FOR HYDROFORMYLATION CATALYZED BY TRANSITION METALS - The invention relates to a bisphosphite of the formula I | 02-11-2010 |
| 20100137623 | STABLE CATALYST PRECURSOR OF RH COMPLEX CATALYSTS - The present invention relates to the preparation and use of stable catalyst precursors of rhodium complex catalysts. | 06-03-2010 |
| 20110160473 | METHOD FOR PRODUCING SOLUBLE NEODYMIUM CHLORIDE COMPLEX - The invention provides a method for producing soluble neodymium chloride complex using neodymium chloride aqueous solution as raw material, thereby avoiding the use of anhydrous neodymium chloride, simplifying the synthesis process and reducing the cost for synthesizing neodymium chloride complex. The neodymium chloride complex produced by this method is soluble not only in polar solvent, but also in nonpolar solvent. Such neodymium chloride complex also has good dissolvability in aliphatic hydrocarbon solvent which has relatively weaker solution power, and even in aliphatic hydrocarbon solvent with 6 or less carbon atoms which has even lower solution power. Since neodymium chloride complex is soluble in aliphatic hydrocarbon solvent, its transportation may be conducted, which is convenient for industrial application and contributes to improve the utilization efficiency of rare earth. | 06-30-2011 |
| 20110295029 | NANOPARTICLE DISPERSIONS WITH LOW AGGREGATION LEVELS - A composition includes an inorganic particle core and an initiator molecule chemically bonded thereto. The particle core is formed of a material having a dielectric constant of about fifteen or more. The initiator molecule includes a chain having about twenty or fewer carbon atoms and a phosphorous atom chemically bonded to an end of the chain. An alkyl derivative of an aryl moiety terminates another end of the chain. | 12-01-2011 |
| 20120035382 | METHOD FOR SEPARATION AND PARTIAL RETURN OF RHODIUM AND CATALYTICALLY EFFECTIVE COMPLEX COMPOUNDS THEREOF FROM PROCESS STREAMS - The invention relates to a method for separating and partially returning transition metals and/or catalytically effective complex compounds thereof from a reaction mixture by combining one at least one-stage membrane separation and an adsorption, wherein a current comprising a catalyst, comprising a transition metal, is divided over at least one one-stage membrane separation step in a transition metal enriched retentate stream that resupplies the reaction mixture and a transition metal depleted permeate stream and the transition metal depleted permeate stream is further supplied to an adsorption step. The invention further relates to a method for producing tridecanals. | 02-09-2012 |
| 20120101290 | METHOD FOR PRODUCING RUTHENIUM COMPOUND - A method for producing ruthenium compound including the step of reacting a compound represented by General Formula (1): RuL | 04-26-2012 |
| 20130035498 | SEMICONDUCTOR THAT HAS A FUNCTIONALIZED SURFACE - This invention provides a semiconductor having a functionalized surface that is resistant to oxidation and that includes a plurality of atoms of a Group III element bonded to organic groups. The functionalized surface has less than or equal to about 1 atom of the Group III element bonded to an oxygen atom per every 1,000 atoms of the Group III element bonded to the organic groups, as determined using X-ray photoelectron spectroscopy. This invention also provides a method of functionalizing the surface and includes the step of halogenating at least one of the plurality of atoms of the Group III element to form halogenated Group III element atoms. The method also includes the step of reacting at least one of the halogenated Group III element atoms with a Grignard reagent to form a bond between the at least one Group III element atom and the organic groups. | 02-07-2013 |
| 20130144079 | CALCINATION AND REDUCTION PROCESS INCLUDING A FLUIDIZING BED REACTOR - These disclosures relate to preparing nickel metal (Ni(0)) suited for use in catalyst systems, such as nickel complexes with phosphorus-containing ligands, useful to catalyze the hydrocyanation of ethylenically unsaturated compounds. The methods described herein can include use of steam during reduction of nickel. | 06-06-2013 |
| 20130184478 | CRYSTALLINE SOLVATE AND NON-SOLVATED FORMS OF 6,6'-[[3,3',5,5'-TETRAKIS(1,1-DIMETHYLETHYL)-[1,1'-BIPHENYL]-2,2'-DIYL]BI- S(OXY)]BIS-DIBENZO [D,F] [1,3,2]-DIOXAPHOSPHEPINE - The present invention relates to a crystalline non-solvated form of 6,6′-[[3,3′,5,5′-tetrakis(1,1-dimethylethyl)-[1,1′-biphenyl]-2,2′-diyl]bis(oxy)]bis-dibenzo[d,f][1,3,2]-dioxaphosphepine (compound I) and toluene-solvates and acetone-solvates thereof. | 07-18-2013 |
| 20130317242 | NICKEL COMPOSITIONS FOR PREPARING NICKEL METAL AND NICKEL COMPLEXES - Nickel(II) compositions for use in manufacturing nickel metal (Ni(0)) compositions, and specifically to methods of making basic nickel carbonates used to produce nickel metal compositions are disclosed. By varying the molar ratios of carbonates and bicarbonates to nickel salts, the methods provide basic nickel carbonates that produce superior nickel metal-containing solids that are well-suited to forming nickel-ligand complexes with phosphorus-containing ligands. The phosphorus-containing ligands can be monodentate or bidentate phosphorus-containing ligands. | 11-28-2013 |
| 20130345459 | PREPARING A NICKEL PHOSPHORUS LIGAND COMPLEX - The present invention relates to a method of preparing a nickel complex including nickel and at least one phosphorus-containing ligand by reacting at least a portion of a nickel metal with at least one phosphorus-containing ligand. The nickel metal is prepared from a nickel composition including nickel(II). | 12-26-2013 |
| 20140316153 | EXTRACTION SOLVENT CONTROL FOR REDUCING STABLE EMULSIONS - Disclosed herein are methods for recovering diphosphite-containing compounds from mixtures comprising organic mononitriles and organic dinitriles, using liquid-liquid extraction. Also disclosed are pre-treatments to enhance extractability of the diphosphite-containing compounds. | 10-23-2014 |
| 20140378693 | EXTRACTION SOLVENT CONTROL FOR REDUCING STABLE EMULSIONS - Disclosed herein are methods for recovering diphosphite-containing compounds from mixtures comprising organic mononitriles and organic dinitriles, using liquid-liquid extraction. Also disclosed are treatments to enhance extractability of the diphosphite-containing compounds. | 12-25-2014 |
| 20150290633 | ASYMMETRICAL BISPHOSPHITE - An unsymmetric bisphosphite of the formula (1) | 10-15-2015 |
| 20150336093 | PROCESS FOR CATALYTIC PREPARATION OF ALDEHYDES FROM OLEFINS USING MONOPHOSPHITE MIXTURES - The catalytic preparation of an aldehyde from an olefin proceeds in the presence of a monophosphite mixture. | 11-26-2015 |
| 20150336988 | NOVEL MONOPHOSPHITE LIGANDS HAVING A TERT-BUTYLOXYCARBONYL GROUP - A novel monophosphite ligand having a tert-butyloxycarbonyl group is useful as a ligand in hydroformylation of an olefin. | 11-26-2015 |
| 20150336989 | MIXTURE CONTAINING A MONOPHOSPHITE LIGAND AND THE USE THEREOF FOR CATALYSIS OF A HYDROFORMYLATION REACTION - A mixture containing a monophosphite ligand is useful for the catalysis of a hydroformylation reaction. | 11-26-2015 |
| 20160023199 | P-CHIROGENIC ORGANOPHOSPHORUS COMPOUNDS - Novel P-chirogenic organophosphorus compounds of general formula (I), a process for the synthesis of the compounds of formula (I), and intermediate products of general formulae (II), (III) and (IV), as shown below, are involved in the synthesis of compounds (I). | 01-28-2016 |
| 20160152539 | PHOSPHORAMIDITE DERIVATIVES IN THE HYDROFORMYLATION OF UNSATURATED COMPOUNDS | 06-02-2016 |
| 20160159718 | MONOPHOSPHITES COMPRISING AN ANTHROL - Monophosphites comprising an anthrol are useful for catalyzing hydroformylation of an olefin to an aldehyde. | 06-09-2016 |
| 20160159837 | MONOPHOSPHITES COMPRISING A BENZOPINACOL - Monophosphites including a benzopinacol structure and metal complexes thereof are provided. The metal complex compositions are useful as hydroformylation catalysts. The metals of the complex include Rh, Ru, Co and Ir. A method of hydroformylation using the metal complex or the metal complex components is also provided. | 06-09-2016 |
| 20160159838 | MONOPHOSPHITES HAVING AN UNSYMMETRIC BIARYL UNIT - Monophosphites having an unsymmetric biaryl structure and metal complexes thereof are provided. The metal complex compositions are useful as hydroformylation catalysts. The metals of the complex include Rh, Ru, Co and Ir. A method of hydroformylation using the metal complex or the metal complex components is also provided. | 06-09-2016 |
| 20160159839 | BISPHOSPHITES HAVING AN UNSYMMETRIC CENTRAL BIARYL UNIT - Bisphosphites having an unsymmetric central biaryl unit. | 06-09-2016 |
| 20160185685 | BISPHOSPHITES HAVING A CENTRAL 2,3'-BIPHENOL UNIT - Bisphosphites having a central 2,3′-biphenol unit are useful for catalyzing hydroformylation. | 06-30-2016 |
