СПОСОБ ПОЛУЧЕНИЯ ПРОПИЛЕНОКСИДА

Настоящее изобретение относится к способу получения пропиленоксида. Описан способ получения пропиленоксида (ПО), включающий взаимодействие пропилена с пероксидом водорода в присутствии катализатора, в водной реакционной среде, содержащей воду с менее чем 10 об. % сорастворителей, в котором катализатор содержит водорастворимый комплекс марганца, который представляет собой одноядерный комплекс формулы (I):или двухъядерный комплекс формулы (II):, где Mn обозначает марганец; L или каждый из L независимо обозначает полидентатный лиганд, каждый из X независимо обозначает координирующий фрагмент, а каждый из µ-X независимо обозначает мостиковый координирующий фрагмент, и Y обозначает некоординирующий противоион, причем окисление проводят при pH в диапазоне от 1,5 до 6,0 и мольное отношение пропилена к пероксиду водорода составляет от 1:1 до 10:1, причем в водорастворимом комплексе марганца каждый из X независимо выбран из группы, состоящей из: RO, Cl, Br, I, F, NCS,,, NH, NR, RCOO,,, OH, O,, HOO ...

КАТАЛИТИЧЕСКАЯ КОМПОЗИЦИЯ, СПОСОБЫ ЕЕ ПОЛУЧЕНИЯ И ПРИМЕНЕНИЕ В СПОСОБЕ ПОЛИМЕРИЗАЦИИ

Предложены каталитические композиции для полимеризации и способы получения указанных композиций. Описан способ получения каталитической композиции для полимеризации олефинов, включающий: осуществление контакта катализатора на подложке с жирным амином в жидком носителе с образованием суспензии из катализатора на подложке и жирного амина в жидком носителе; причем указанный жирный амин по существу не содержит мелкодисперсного неорганического материала; и высушивание указанной суспензии с образованием по существу свободно сыпучего порошка, и отличающийся тем, что указанный жирный амин представлен формулой (R1)xN(R2OH)y, где R1представляет собой углеводородный радикал, содержащий от 8 до 40 атомов углерода; R2представляет собой углеводородный радикал, содержащий от 1 до 8 атомов углерода; и х принимает значение 1 или 2 и х+у=3; и указанный катализатор на подложке содержит одно или более металлоценовых соединений, выбранных из: (пентаметилциклопентадиенил)(пропилциклопентадиенил)МХ2,(тетраметилциклопентадиенил ...

ПЕРЕКРЕСТНОЕ СОЧЕТАНИЕ УГЛЕРОД-УГЛЕРОД, КАТАЛИЗИРУЕМОЕ ПЕРЕХОДНЫМИ МЕТАЛЛАМИ НА ТВЕРДЫХ НОСИТЕЛЯХ

... 1. Способ сочетания углеродсодержащих соединений, включающий реакцию (i) первого углеродсодержащего соединения со (ii) вторым углеродсодержащим соединением в присутствии (iii) металла палладия или никеля на твердом катализаторе, включающем соль щелочноземельного металла, и (iv) растворителя, включающего спирт. 2. Способ согласно п.1, в котором указанным первым углеродсодержащим соединением является арилгалогенид и указанным вторым углеродсодержащим соединением является арилборная кислота. 3. Способ согласно п.1, в котором указанным первым углеродсодержащим соединением является арилгалогенид и указанным вторым углеродсодержащим соединением является соединение, включающее винильную группу. 4. Способ согласно п.1, в котором указанным первым углеродсодержащим соединением является алкилгалогенид и указанным вторым углеродсодержащим соединением является соединение, включающее винильную группу. 5. Способ согласно п.1, в котором указанным первым углеродсодержащим соединением является арилгалогенид ...

КОМПОЗИЦИИ ОБЕСПЕЧЕНИЯ НЕПРЕРЫВНОСТИ И СПОСОБЫ ИЗГОТОВЛЕНИЯ И ИСПОЛЬЗОВАНИЯ ТАКОВЫХ

Установка, способ и катализатор осушки и очистки газообразного углеводородного сырья от сероводорода и/или меркаптанов

ПОВЕРХНОСТНО-МОДИФИЦИРОВАННЫЙ КАРБОНАТ КАЛЬЦИЯ В КАЧЕСТВЕ НОСИТЕЛЯ ДЛЯ КАТАЛИЗАТОРОВ НА ОСНОВЕ ПЕРЕХОДНЫХ МЕТАЛЛОВ

ОДНОСТАДИЙНЫЙ СПОСОБ ПОЛУЧЕНИЯ 1,3-ПРОПАНДИОЛА ИЗ ЭТИЛЕНОКСИДА И СИНТЕТИЧЕСКОГО ГАЗА С ПОМОЩЬЮ КАТАЛИЗАТОРА НА ОСНОВЕ КОБАЛЬТА-ЖЕЛЕЗА

... 1. Композиция катализатора, содержащая a) компонент кобальта; и b) компонент железа, лигированный лигандом, выбранным из группы, состоящей из остатков N-гетероцикла, фосфина и порфорина. 2. Композиция по п.1, где компонент кобальта выбирается из солей кобальта, которые восстановлены до состояния нулевой валентности путем тепловой обработки в присутствии синтетического газа. 3. Композиция по п.1 или 2, где компонент железа представляет собой карбонил железа или металлоорганическое соединение железа. 4. Композиция по п.1 или 2, где лиганд выбирается из группы, состоящей из монодентатных, бидентатных и мультидентатных N-гетероциклических лигандов. 5. Композиция по п.1 или 2, где лиганд представляет собой лиганд третичного дифосфина общей формулы RRP-Q-PR'R', где каждая группа R и R', независимо или в сочетании, представляет собой углеводородный остаток, содержащий до 30 атомов углерода, и Q представляет собой органическую мостиковую группу из 2-4 атомов в длину. 6. Композиция по п.1 или 2, ...

Способ получения комплексных соединений щелочных металлов

Wärmehärtbare Organopolysiloxanmassen und vorgefertigte latente Platinkatalysatoren

Verfahren zur Herstellung von Dimeren des Bicyclo-[2, 2, 1]-heptadiens-(2, 5)

VERFAHREN ZUR HERSTELLUNG VON EINEM ALKANON UND/ODER ALKANOL

VERFAHREN ZUR HERSTELLUNG VON N-OCTADIENOL

CHIRALE RHODIUM-DIPHOSPHINKOMPLEXE FUER ASYMMETRISCHE HYDRIERUNGEN.

Verfahren zur Rückgewinnung eines Gruppe-VIII-Metall-Komplexes und Hydroformylationsverfahren.

MONOCYCLOPENTADIENYLKOMPLEXE

Aminosäurekomplexe und ihre Verwendung zur Herstellung von Olefinpolymerisaten

Aminosäurekomplex der allgemeinen Formel I, DOLLAR F1 wobei M ausgewählt wird aus Fe, Co, Ni, Pd, Pt oder Ir, vorzugsweise Ni, bedeutet; Verfahren zu ihrer Herstellung sowie Verwendung zur Polymerisation von Olefinen.

Verfahren zur Herstellung von Ruthenium-Hydrogenierungskatalysatoren und deren Verwendung

DURCH METALL-LIGANDCOMPLEXE KATALYSIERTE HERSTELLUNGSVERFAHREN

KOBALTKATALYSATOR

VIZINALE DI(HETERO)ALKYLENORGANO-METALLATE UND VERFAHREN ZUR HERSTELLUNG VON AMINEN

VERFAHREN ZUR HERSTELLUNG VON CARBONSAEUREN

Katalysatorsysteme für die (Co)Polymerisation von Alpha-Olefinen

SPÄTÜBERGANGSMETALL-TRÄGERKATALYSATORSYSTEME

Verfahren zur Durchfuehrung einer durch einen heterogenen Metallkatalysator katalysierten Reaktion

Verwendung von molekulargewichtsvergrößerten Katalysatoren in einem Verfahren zur asymmetrischen kontinuierlichen Hydrierung, neue molekulargewichtsvergrößerte Liganden und Katalysatoren

Die vorliegende Erfindung richtet sich auf eine Verwendung von molekulargewichtsvergrößerter homogen löslicher Katalysatoren Verfahren zur asymmetrischen kontinuierlichen Hydrierung von C=C-, C=N- oder C=O-Doppelbindungen mittels molekulargewichtsvergrößerter homogen löslicher Katalysatoren in einem Membranreaktor. DOLLAR A Bisherige im Stand der Technik vorgeschlagene Hydrierverfahren liefen diskontinuierlich ab. Die kontinuierliche Fahrweise hilft dagegen Prozeßkosten zu sparen. DOLLAR A Angegeben werden auch neue molekulargewichtsvergrößerte Liganden und Katalysatoren.

Chirale Diphosphin-Verbindung, Zwischenprodukte zu ihrer Herstellung, Übergangsmetall-Komplexe davon und asymmetrischer Hydrierungskatalysator

Vinyl acetate - from acetic acid and ethylene,using palladium and cupric catalysts,free from halogens

A catalytic compsn. for the synthesis of vinyl acetate pour acetic acid and ethylene in a medium free from halogen ions, consists of a combination of a cupric salt, pref. the acetate, and a Pd chelate in which the chelating agent is an amino acid or a peptide. The ratio of Cu to Pd is pref. 1/10 - 10,000, esp. 2-300. Compsn. pref. also includes an alkali metal salt, pref. the acetate. The process may be carried out continuously. Freedom from halogen ions minimises corrosion.

New process

Improvements in and relating to compounds and catalysts

COMPLEX NICKEL COMPOUNDS

... 1394134 Nickel complexes containing phosphorus ligands; adiponitrile E I DU PONT DE NEMOURS & CO 2 Aug 1972 [2 Aug 1971] 36120/72 Headings C2P and C2C Novel N-bonded nitrile complexes of zerovalent nickel of formula Ni(PXYZ) 3 R1CN where X is OR, Y and Z are R or OR and R is optionally substituted C 1-18 alkyl or aryl, the radicals R of a given PXYZ ligand optionally being cojoined, and being the same or different, the radicals R being chosen so that the ligand PXYZ has a cone angle having an average value between 130 and 200 degrees, and where R1CN is an organo nitrile, may be prepared by reacting a complex Ni(PXYZ) 3 or another suitable complex with R1CN. R1 is preferably alkyl cyanoalkyl, aryl, fluoroaryl or C 3-20 alkenyl wherein the double bond is separated from CN by at least one carbon atom. The complexes may be used as catalysts in a process for the hydrocyanation of olefinic compounds, e.g. the hydrogenation of 3-pentenonitrile or 4-pentenonitrile ...

Catalytic composition for dimerizing, co-dimerizing, oligomerizing and polymerizing olefins

Catalytic composition

A catalytic composition for use in dimerizing, co-dimerizing or oligomerizing olefins comprises:

• at least one zero-valent nickel complex;
• at least one acid with formula H<+>X<-> in which X<-> represents an anion;
• and at least one ionic liquid with general formula Q<+>A<-> in which A- is an anion identical to or different from X<->.

Modified polymer complex, complex monomer, polymer complex, and redox catalyst

Production of 1,5 cyclo-octadiene from butadiene and catalysts for use therein

The invention comprises a compound of the general formula: in which R is an alkyl or aromatic radical, Z is an a , b -unsaturated aldehyde or an a ,b -unsaturated nitrile, x is 2 or 3 and y is O or 1, the sum of x and y being les than or equal to 3. Such compounds and similar phosphite-containing nickel complexes with less than four ligands may be obtained by reacting an organic nickel complex containing O-valent nickel and which is free from carbon monoxide groups with a triester of phosphorous acid in an inert solvent or diluent with substantial exclusion of oxygen. Suitable nickel complexes for use in the process are nickel (O)-bis-acrylonitrile, nickel(O)-bis-cinnamonitrile, nickel(O)-bis-fumaronitrile, and nickel(O)-bis-acrolein. The group R in the phosphite may be the radical of a C1-C12 alkano or of a phenol or naphthol which may be substituted by alkyl or aryl radicals, alkoxy groups or halogen atoms, e.g. chlorine. The reaction is suitably carried out at from ...

A novel catalytic formulation and its preparation technical field

PREPARATION OF CARBOXYLIC ACID ANHYDRIDES

Nanoparticles and preparation method

Organic cyclic oxide polymers, their preparation and tires prepared therefrom

Oxiranes and oxetanes are polymerized using as catalyst a double metal cyanide complex (see Specification 1,063,526, Division C2) of general formula MaKc.(H2O)d.Re where K is M1(CN)b or M1[(CN)rXt]b; M is at least one metal selected from Zn (II), Fe (II), Fe (III), Co (II), Ni (II), Mo (III), Al (III), V (IV), V (V), Sr (II), W (IV), Mn (II) and Gr (III); M1 is at least one metal selected from Fe (II), Fe (III), Co (II), Co (III), Cr (II), Cr (III), Mn (II), Mn (III), V (IV) and V (V); where X is at least one ion selected from F-, Cl-, Br-, I-, OH-, NO, O2-, CO, H2O, NO2-, C2O42- SO42-, CNO-, CNS-, NCO- and NCS-; R is at least one compound selected from an alcohol, aldehyde, ketone, ester, ether, amide, nitrile and a sulphide, a, b, c and r are integers, r is greater than t, and t, d and e are integers or zero. The products have high molecular weights of up to 1 x 106 and are amorphous and rubbery. Many alkylene oxides, including diepoxides, complexing agents R, and complex cyanides are ...

NEW RUTHENIUM COMPLEXES AND PROCESSES FOR THEIR PREPARATION

... 1,213,538. Ruthenium complexes. RHONEPOULENC S.A. 10 Dec., 1968 [11 Dec., 1967], No. 58560/68. Heading C2C. Ruthenium complexes of the formula where (diket) is a bidentate ligand derived from a #-diketone and has the general formula where R 1 , R 2 and R 3 are alkyl, cycloalkyl, or aryl, which may be substituted by halogen, or R 1 and R 2 or R 2 and R 3 taken together may represent a divalent hydrocarbyl radical which may be substituted by halogen, L is a mono- or bidentate ligand other than CO or a #-diketone and n is 1 or 2, are prepared by reacting a ligand L, in the presence of a hydrogenation catalyst, with a tris-(diket) Ru complex under a hydrogen atmosphere, or by reacting a complex (Ru- (diket) 2 L1 n , where L1 is a weaker electron donor than L, with a ligand L. Some of the complexes are claimed per se. The hydrogenation reaction is preferably carried out in the presence of a solvent, e.g. excess of L if it is liquid, and the catalyst is preferably a ruthenium ...

ORGANOMETALLIC COMPLEXES AND CHEMICAL PROCESS USING SAME

... 1,217,417. Organometallic complexes. NATIONAL DISTILLERS & CHEMICAL CORP. 5 July, 1968 [14 July, 1967; 17 July, 1967], No. 32314/68. Headings C2C and C2J. [Also in Division C5E] The invention comprises organometallic complexes of the formula where n is zero or an integer from 1 to 4; each R is selected from lower alkyl (C 1 -C 4 ) group, aryl group having from 6 to 16 carbon atoms, hydroxy group, nitro group, halide, dialkyl. amino, diarylamino and alkarylamino groups having 2 to 12 carbon atoms, or alkoxy or aryloxy group having 1 to 6 carbon atoms; M is Ru, Pt, Os, Pd, Ir, or Rh; Y is chloride bromide, nitrate, acetate, thiocyanate or cyanide group; A is -CR1 =N- (where R1 is hydrogen or an alkyl or aryl group having 1 to 10 carbon atoms), and Z is an alkyl group having 1 to 10 carbon atoms, aryl group or alkaryl, an alkoxy or aryloxy group having 1 to 10 carbon atoms, a hydroxy group, or an alkylamino, dialkylamino, arylamino or diarylamino group having 1 to 12 carbon ...

METALLO-ORGANIC COMPLEXES

... 1336586 Ferrous halide/adiponitrile complexes HALCON INTERNATIONAL Inc 10 Dec 1970 [11 Dec 1969] 58728/70 Heading C2C Adiponitrile complexes of the formula X being chlorine or bromine, are obtained either by reacting appropriate ferrous halides with adiponitrile in the liquid phase at from 0‹ to 300‹ C., or by coupling compounds of the formula X-CH 2 CH 2 C#N in the presence of iron. The complexes may be used as promoters in the reductive coupling of #-halopropionitriles to form adiponitrile.

Organic compounds or aluminium

The invention comprises organo-aluminium compounds of the general formula [AlR2R1]xMeF, wherein R represents a saturated hydrocarbon radical, R1 represents a saturated hydrocarbon radical or hydrogen, Me represents an alkali metal and x is 1 or 2, and a mixture of organoaluminium compounds of the above general formula in which x is 1 and 2 and R2, R1 and Me represent the same units in both compounds, and a process for the preparation thereof by reacting from one to two moles, of an aluminium hydrocarbon of the general formula AlR2R1 with one mole. of the alkali metal fluoride. The saturated hydrocarbon radical may be an alkyl or aryl hydrocarbon radical, e.g. an alkyl radical containing up to 4 carbon atoms or the phenyl radical. The alkali metal fluoride may be sodium or potassium fluoride. It is preferred to prepare the compounds in the absence of air. If the desired product has a high melting point it is preferable to grind a solution of the aluminium hydrocarbon reactant in an inert ...

AROMATIC CARBONATES

Preparation of cyclotrienes and catalyst therefor

Conjugated diolefins are trimerized in the presence of a catalyst comprising a complex of a titanium halide and a primary aliphatic or cycloaliphatic amine having at least 4 C and a complex of a hydrocarbyl aluminium dihalide and an ether or heterocyclic compound. Trimerization may be effected in an inert solvent, e.g. benzene, at from 50-100 DEG C., e.g. in an autoclave. Examples described the trimerization of 1:3-butadiene to yield 1:5:9-cyclododecatriene and isoprene to yield 1:5:9-trimethyl-1:5:9-cyclododecatriene.ALSO:A catalyst system comprises a complex of a titanium halide and a primary aliphatic or cycloaliphatic amine having at least 4C and a complex of a hydrocarbyl aluminium dihalide and an ether or heterocyclic compound. Specified titanium halides are TiCl3, TiCl4, TiBr4 and TiI4. Specified primarily amines are n-hexylamine, nonylamine, 5:5 dimethyl-hexylamine, 3:5:5 trimethylhexylamine, D phonyl-butylamine. Specified ethers are diethyl ether, dipropyl ether, methyl propyl ...

TETRAMERISIERUNG OF OLEFINEN

MONOCYCLOPENTADIENYLKOMPLEXE

SOLVENSSTABILISIERTE METAL COMPLEXES WITH WEAKLY COORDINATIONS GEGENANIONEN AS POLYMERIZATION CATALYSTS

VERFAHREN ZUR HERSTELLUNG EINES NEUEN STABILEN HOMOGENEN RHODIUM-HYDRIERUNGS-KATALYSATORS UND DESSEN ANWENDUNG

CATALYST COMPLEX AND PROCEDURE FOR THE PRODUCTION OF POLYOLEFINS WITH MULTIMODALEM MOLECULAR WEIGHT

PROCEDURE FOR THE PRODUCTION OF A CATALYST FOR THE DEMERISATION OF BUTADIENE.

PROCEDURE AND COMPOSITION FOR THE PROMOTION OF HYDROSILYLIERUNGSREAKTIONEN USING STERISCH PREVENT NITROGEN AND PHOSPHORHALTIGER CONNECTIONS

PROCEDURE FOR THE ISOMERIZATION OF ALLYL ALCOHOLS

PROCEDURE FOR SULFIDIERUNG ORGANIC NITROGEN AND CARBONYL CONTAINING HYDRAULIC TREATMENT CATALYST

PROCEDURE FOR THE ASYMMETRICAL HYDROGENATION OF KETOCARBONSÄUREESTERN

REACTOR WITH AN IMPROVED LIQUID COLLECTING TANK

PROCEDURE FOR THE PRODUCTION OF METAL COMPLEXES, THE HYDROXYALKOXYCARBONYLCYCLOPENTADIEN LIGANDS CONTAINING

TEXAPHYRINE AS SENSITIZING AGENTS FOR RADIATION

IMPROVED METHODS AND CATALYSTS FOR THE PRODUCTION OF KOHLENSTOFFIBRILLEN

CHIRALE FERROCENE

CATALYTIC COMPOSITION AND PROCEDURE FOR ASYMMETRICAL ALLYLI ALKYLATION

Process for preparing optically active 1-(p-methoxybenzyl)-1,2,3,4,5,6,7,8-octahydroisoquinoline

Catalyst preparation and epoxidation process

BIMETALLIC CLUSTERS OF RUTHENIUM WITH COPPER, SILVER AND GOLD

VICINAL DI(HETERO)ALKYLENE ORGANOMETALATES AND PROCESSES FOR THE PRODUCTION OF AMINES THEREWITH

TETRAMERIZATION OF OLEFINS

Use of metal hydrazide complex compounds as oxidation catalysts

Copolymers of ethylene and selected acrylate esters

Recyclable metathesis catalysts

Catalyst for asymmetric transfer hydrogenation

Recyclable metathesis catalysts

RUTHENIUM COMPOUNDS, DIAMINE LIGANDS, AND PROCESS FOR PREPARATION OF OPTICALLY ACTIVE ALCOHOLS

OXYGEN REDUCTION CATALYST

Method for producing endo-9-azabicyclo[3.3.1]nonane-3-ol derivative

Provided is a method that makes it possible to obtain an endo-9-azabicyclo[3.3.1]nonane-3-ol derivative that is useful as an intermediate of agricultural and horticultural chemicals or pharmaceuticals at a low cost by reacting a 9-azabicyclo[3.3.1]nonane-3-on derivative with hydrogen under the presence of a catalyst comprising a ruthenium complex.

AROMATIC CARBONATES

PROCESS FOR MAKING ETHYLENE GLYCOL

Mesoscopic organopolysiloxane particles with chemically bound metallic compounds

Production of half-sandwich substituted catalyst precursors

Improved metal-ligand complex catalyzed processes

Epoxidation catalyst

PROCESS FOR THE PREPARATION OF NITRODIPHENYLAMINES

The present invention relates to a process for the preparation of nitrodiphenyl- amines by reaction of nitrohalogens with anilines, a base and a catalyst, and to a process for the preparation of aminodiphenylamine by hydrogenation of the nitrodiphenylamine intermediately prepared.

CATALYTIC MATERIAL AND METHOD FOR PREPARATION THEREOF

PROCESS FOR HYDROGENATING OLEFINIC COMPOUNDS

MICROENCAPSULATED CATALYST, METHODS OF PREPARATION AND METHODS OF USE THEREOF

A microencapsulated catalyst is prepared by dissolving or dispersing a catalyst in a first phase (for example an organic phase), dispersing the first phase in a second, continuous phase (for example an aqueous phase) to form an emulsion, reacting one or more microcapsule wall-forming materials at the interface between the dispersed first phase and the continuous second phase to form a microcapsule polymer shell encapsulating the dispersed first phase core and optionally recovering the microcapsules from the continuous phase. The catalyst is preferably a transition metal catalyst and the encapsulated catalyst may be used for conventional catalysed reactions. The encapsulated catalyst may recovered from the reaction medium and re-cycled.

PROMOTING THE CATALYTIC PROCESS FOR MAKING POLYHYDRIC ALCOHOLS

PROMOTING THE CATALYTIC PROCESS FOR MAKING POLYHYDRIC ALCOHOLS This invention relates to the manufacture of such valuable chemicals as polyhydric alcohols, their ether and ester derivatives, oligomers of such alcohols and monohydric alcohols and their ether and ester derivatives by reacting hydrogen and oxides of carbon in the presence of a rhodium carbonyl complex in combination with optimum amounts of amine promoters. S P E C I F I C A T I O N ...

INSOLUBLE COMPLEX OXIDATION CATALYSTS

Insoluble complex oxidation catalysts comprising chromium salts bound on an insoluble polymer supports having pendant pyridine groups, that are useful in oxidation reactions such as Tetralin? to .alpha.-tetralone, ethylbenzene to acetophenone, and 2-methyl-5-ethylpyridine to 2-methyl-5-acetylpyridine. Also disclosed are processes for accomplishing such oxidations utilizing such catalysts.

PROCESS FOR PRODUCING ETHANOL

PROCESS FOR PRODUCING ETHANOL A process for selectively producing alcohols, particularly ethanol, which comprises introducing into a reaction zone (1) methanol, (2) carbon monoxide, (3) hydrogen, (4) cobalt, (5) iodine, (6) ruthenium and (7) a ligand containing atoms from Group VA of the Periodic Table separated by a sterically constrained carbon-carbon bond, and then subjecting the contents of said reaction zone to an elevated temperature and and elevated pressure for a time sufficient to convert methanol to said ethanol.

PROCESS FOR THE PREPARATION OF 5-ALKYLIDENENORBORNENE-2

HYDROCYANATION OF OLEFINS

PROCESS FOR PREPARING DIPHENYLAMINE

PROCESS FOR PREPARING DIPHENYLAMINE Diphenylamine is made by heating aniline under pressure and temperatures of 250-400.degree.C in the presence of a boron/fluorine compound and water.

CATALYTIC DEGRADATION OF OXIDIZABLE ORGANIC AND INORGANIC COMPOUNDS IN WATER

Oxidizable organic and/or inorganic compounds in waters are subjected to catalytic degradation using a catalyst applied to an oxygen-storing inert carrier, for example of graphite, coke, a non-gas-sing coal or active carbon. The carrier used is coated with a cationic dye complexed with heteropolyacids and/ or polyacids and/or salts or metal acids of subgroups V to VIII. The advantages of the process include the prevention of biological growth on the catalyst surface by the biocidal dye cation and the avoidance of calcium and magnesium deposits on the catalyst surface through the presence of the cationic solid.

PROCESS FOR HYDROCYANATION OF OLEFINIC COMPOUNDS

Solution polymerization process and procatalyst carrier systems useful therein

A procatalyst carrier system which includes one or more paraffinic solvents, one or more paraffin-insoluble procatalysts, and optionally one or more cocatalysts wherein the carrier system is in the form of a slurry is provided. Also provided is a process including selecting one or more paraffin-insoluble organometallic procatalysts; adding the one or more procatalysts to a sufficient quantity of paraffinic solvent to form a slurry of the one or more procatalysts in the paraffinic solvent; introducing one or more first cocatalysts into a polymerization reactor; and introducing the slurry into the polymerization reactor; a reaction product of the process and articles made from the reaction product.

Chelating Carbene Ligand Precursors and Their Use in the Synthesis of Metathesis Catalysts

Chelating ligand precursors for the preparation of olefin methathesis catalysts are disclosed. The resulting catalysts are air stable monomeric species capable of promoting various methathesis reactions efficiently, which can be recovered from the reaction mixture and reused. Internal olefin compounds, specifically beta-substituted styrenes, are used as ligand precursors. Compared to terminal olefin compounds such as unsubstituted styrenes, the beta-substituted styrenes are easier and less costly to prepare, and more stable since they are less prone to spontaneous polymerization. Methods of preparing chelating-carbene methathesis catalysts without the use of CuCl are disclosed. This eliminates the need for CuCl by replacing it with organic acids, mineral acids, mild oxidants or even water, resulting in high yields of Hoveyda-type methathesis catalysts. The invention provides an efficient method for preparing chelating-carbene metathesis catalysts by reacting a suitable ruthenium complex in high concentrations of the ligand precursors followed by crystallization from an organic solvent.

Method for producing alcohol and/or amine from amide compound

Disclosed herein is a method for producing an alcohol and an amine from an amide under an atmosphere of hydrogen with the use of, as a catalyst, a ruthenium complex that is easily prepared, easy to handle, and relatively cheaply obtained. Specifically, the method is a method for producing an alcohol and/or an amine from an amide compound under an atmosphere of hydrogen with the use of as a catalyst, a ruthenium carbonyl complex represented by the following general formula (1): RuXY(CO)(L) (1) wherein X and Y may be the same or different from each other and each represents an anionic ligand and L represents a tridentate aminodiphosphine ligand containing two phosphino groups and a —NH— group.

Use of Metal Hydrazide Complex Compounds as Oxidation Catalysts

The present invention relates to the use of selected metal complex compounds and ligands as oxidation catalysts as well as to a process for removing stains and soil on textiles and hard surfaces. The metal complex compounds have hydrazide ligands, preferably with electron withdrawing groups in the phenyl ring adjacent to the acyl group. Further aspects of the invention are formulations comprising such metal complex compounds, novel metal complex compounds and novel ligands.

CATALYST FOR OLEFIN MULTIMERIZATION AND METHOD FOR PRODUCING OLEFIN MULTIMER IN PRESENCE OF CATALYST FOR OLEFIN MULTIMERIZATION

The objectives of the present invention are to provide an olefin oligomerization catalyst that allows properties of particles of a polymer component by-produced in an α-olefin production process to be obtained in such a shape that does not negatively affect a separation process for the particles and to provide a method for producing an olefin oligomer performed in the presence of the olefin oligomerization catalyst. The objectives can be achieved by the olefin oligomerization catalyst obtained by contacting (D) a transition metal compound with a preliminary contact solid catalyst component (II) obtained by contacting a solid catalyst component (I) formed by supporting (B) an organoaluminum oxy-compound (b-2) on (A) a solid carrier with (C) at least one compound selected from the group consisting of an organometallic compound (c-1), an organoaluminum oxy-compound (c-2), and a compound (c-3) that reacts with the transition metal compound (D) to form a pair of ion. 1. An olefin oligomerization catalyst (III) obtained by contacting (D) a transition metal compound having a transition metal atom selected from Group III to Group X of the periodic table with a preliminary contact solid catalyst component (II) obtained by contacting a solid catalyst component (I) formed by supporting (B) an organoaluminum oxy-compound (b-2) on (A) a solid carrier with (C) at least one compound selected from the group consisting of an organometallic compound (c-1) , an organoaluminum oxy-compound(c-2) , and a compound (c-3) that reacts with the transition metal compound (D) to form a pair of ions.2. The olefin oligomerization catalyst (III) according to claim 1 , further including an organoaluminum compound (b-1) as the component (B).3. The olefin oligomerization catalyst (III) according to claim 1 , wherein the component (C) is the organoaluminum oxy-compound (c-2).4. The olefin oligomerization catalyst (III) according to claim 1 , wherein the transition metal compound (D) is a transition ...

IGM COMPOSITIONS AND METHODS OF MUCOSAL DELIVERY OF THESE COMPOSITIONS

Described herein are methods of inducing an immune response directed towards preventing or reducing the risk of a human immunodeficiency virus (HIV) infection in a mammalian subject. The subject is administered an effective amount of a composition containing IgM antibodies directed to an epitope of an envelope protein of the HIV virus. Also disclosed here are vaccine compositions comprising IgM antibodies directed to one or more epitopes of one or more human immunodeficiency virus envelope proteins. Also disclosed are recombinant immunoglobulin M compositions containing a Fcγ fragment of an immunoglobulin G. 1. A method of inducing an immune response directed towards preventing or reducing the risk of a human immunodeficiency virus (HIV) infection in a mammalian subject , comprisingadministering to the mammalian subject an effective amount of a composition containing immunoglobulin M (IgM) antibodies directed to an epitope of a human immunodeficiency virus envelope protein.2. The method of claim 1 , wherein the composition containing IgM antibodies is formulated for a mucosal administration.3. The method of claim 2 , wherein the mucosal layer is a rectal mucosal layer.4. The method of claim 1 , wherein the human immunodeficiency virus envelope protein is HIV-1 gp120.5. A recombinant immunoglobulin M composition claim 1 , comprising:a Fcγ fragment of an immunoglobulin G connected to a carboxy terminus of a joining chain of an immunoglobulin M.6. The recombinant immunoglobulin M composition of claim 5 , wherein the Fcγ fragment of the immunoglobulin G is connected to the carboxy terminus of the joining chain of the immunoglobulin M via a linker.7. The recombinant immunoglobulin M composition of claim 6 , wherein the linker is a glycine- and serine-rich linker.8. A recombinant immunoglobulin M composition claim 6 , comprising:a Fcγ fragment of an immunoglobulin G connected to a carboxy terminus of a constant region of a light chain of immunoglobulin M.9. The ...

HIGHLY Z-SELECTIVE OLEFIN METATHESIS

The present invention relates generally to catalysts and processes for the Z-selective formation of internal olefin(s) from terminal olefin(s) via homo-metathesis reactions. 139-. (canceled)41. The metal complex of claim 40 , wherein the ligand containing oxygen bound to M is substituted —O-aryl claim 40 , wherein the aryl group is phenyl.42. The metal complex of claim 40 , the ligand containing oxygen bound to M is substituted —O-aryl claim 40 , wherein the aryl group is biphenyl.43. The metal complex of claim 40 , the ligand containing oxygen bound to M is substituted —O-aryl claim 40 , wherein the aryl group is 1 claim 40 ,2 claim 40 ,3 claim 40 ,4-tetrahydronaphthyl or naphthyl.44. The metal complex of claim 40 , wherein the ligand containing oxygen bound to M is substituted —O-aryl claim 40 , and substituents positioned in close proximity to the metal center are alkylaryl.45. The metal complex of claim 40 , wherein the metal complex is other than W(NAr)(CHCMePh)(Pyr)(HIPTO).46. The metal complex of claim 40 , wherein the ligand containing oxygen bound to M is 3 claim 40 ,3′-di-tert-butyl-5 claim 40 ,5′ claim 40 ,6 claim 40 ,6′-tetramethyl-2′-(trimethylsilyloxy)biphenyl-2-olate (BiphenTMS) claim 40 , 2′-(tert-butyldimethylsilyloxy)-3-mesityl-5 claim 40 ,5′ claim 40 ,6 claim 40 ,6′ claim 40 ,7 claim 40 ,7′ claim 40 ,8 claim 40 ,8′-octahydro-1 claim 40 ,1′-binaphthyl-2-olate (MesBitet) claim 40 , 3 claim 40 ,3′-dimesityl-2′-(tert-butyldimethylsilyloxy)-5 claim 40 ,5′ claim 40 ,6 claim 40 ,6′ claim 40 ,7 claim 40 ,7′ claim 40 ,8 claim 40 ,8′-octahydro-1 claim 40 ,1′-binaphthyl-2-olate (MesBitet) claim 40 , or MesBitetOMe is 3 claim 40 ,3′-dimesityl-2′-methoxy-5 claim 40 ,5′ claim 40 ,6 claim 40 ,6′ claim 40 ,7 claim 40 ,7′ claim 40 ,8 claim 40 ,8′-octahydro-1 claim 40 ,1′-binaphthyl-2-olate (MesBitetOMe).49. The metal complex of claim 48 , wherein Ris tert-butyl claim 48 , optionally substituted.50. The metal complex of claim 48 , wherein Ris substituted phenyl.51. ...

Non-precious Metal-based Hyrdosilylation Catalysts Exhibiting Improved Selectivity

Disclosed herein is the use of manganese, iron, cobalt, or nickel complexes containing tridentate pyridine di-imine ligands as hydrosilylation catalysts. These complexes are effective for efficiently catalyzing hydrosilylation reactions, as well as offering improved selectivity and yield over existing catalyst systems. 2. The process of wherein the molar ratio of the Si—H functional groups in the silyl hydride to the alkenyl functional groups in the unsaturated compound is about 1/α.3. The process of wherein the unsaturated compound is selected from the group consisting of trivinylcyclohexanes claim 1 , tetravinylcyclobutane claim 1 , trivinyltrimethylcyclotrisiloxane claim 1 , tetramethyltetravinylcyclotetrasiloxane claim 1 , triallylcyanurate claim 1 , and triallylisocyanurate.4. The process of wherein the unsaturated compound is trivinylcyclohexane.6. The process of wherein the silyl hydride is selected from the group consisting of (CHO)SiH claim 1 , (CHO)SiH claim 1 , (CH)SiOSi(CH)H claim 1 , [(CH)SiO]SiH(CH) claim 1 , [(CH)SiO]OSiH(CH) and [(CH)SiO]OSiH(CH).8. The process of wherein the complex is immobilized on a support.9. A composition produced from the process of comprising a mono-hydrosilylated product and a bis-hydrosilylated product wherein the gravimetric ratio of the mono-hydrosilylated product to the bishydrosilylated product is greater than about 1.8 claim 1 , and wherein the composition contains the complex of Formula (I).10. The composition of wherein the gravimetric ratio of mono-hydrosilylated products to the bis-hydrosilylated products is greater than about 3.11. The composition of wherein the gravimetric ratio of mono-hydrosilylated products to the bis-hydrosilylated products is greater than about 4.14. The process of wherein the silyl hydride is triethoxysilane.15. The process of wherein the silyl hydride is bis(trimethylsiloxy)methylsilane.16. The process of wherein the trivinylcyclohexane is a mixture of trivinylcyclohexane stereoisomers.20. ...

METATHESIS CATALYSTS AND REACTIONS USING THE CATALYSTS

The invention relates to a method of forming an olefin from a first olefin and a second olefin in a metathesis reaction, comprising step (i): (i) reacting the first olefin with the second olefin in the presence of a compound that catalyzes said metathesis reaction such that the molar ratio of said compound to the first or the second olefin is from 1:500 or less, and the conversion of the first or the second olefin to said olefin is at least 50%, characterized in that as compound that catalyzes said metathesis reaction a compound of formula (A) is used: wherein M is Mo or W; Ris aryl, heteroaryl, alkyl, or heteroalkyl; optionally substituted; Rand Rcan be the same or different and are hydrogen, alkyl, alkenyl, heteroalkyl, heteroalkenyl, aryl, or heteroaryl; optionally substituted; Ris alkyl, alkoxy, heteroalkyl, aryl, heteroaryl, silylalkyl, silyloxy, optionally substituted; and Ris a residue R—X—, wherein X═O and Ris aryl, optionally substituted; or X═S and Ris aryl, optionally substituted; or X═O and Ris (R, R, R)Si; wherein R, R, Rare alkyl or phenyl, optionally substituted; or X═O and Ris (R, R, R)C, wherein R, R, Rare independently selected from phenyl, alkyl; optionally substituted; and to the catalysts used in the method. 2. Method of claim 1 , whereinM=Mo or W;{'sup': '1', 'Ris aryl or adamant-1-yl; optionally substituted;'}{'sup': '2', 'sub': 3', '2', '6', '5', '3', '3, 'Ris —C(CH)CHor —C(CH);'}{'sup': '3', 'Ris H;'}{'sup': '5', 'Ris alkoxy, heteroaryl, silyloxy, or aryloxy; optionally substituted; and'}{'sup': 4', '6, 'Ris a residue R—X—, wherein'}{'sup': '6', 'sub': 1', '4', '1', '4, 'X═O and Ris phenyl substituted with up to five substituents independently selected from alkyl, preferably C-Calkyl, such as methyl, isopropyl or t-butyl, alkoxy, preferably C-Calkoxy, phenoxy, phenyl, halogen, optionally substituted; or'}{'sup': '6', 'X═O and Ris 8-(naphthalene-1-yl)-naphthalene-1-yl, optionally substituted; or'}{'sup': '6', 'X═O and Ris 8-phenlynaphthalene- ...

Method for Producing Alpha, Alpha-Difluoroacetaldehyde

Disclosed is an industrial method for efficient production of an α,α-difluoroaldehyde compound, which includes reaction of an α,α-difluoroacetate with hydrogen gas (H2) in the presence of a ruthenium catalyst and a base. By the adoption of specific reaction conditions (catalyst, base, pressure etc.), it is possible to produce the target α,α-difluoroaldehyde compound with a high conversion rate and high selectivity.

CATALYSTS FOR ELECTROLESS METALLIZATION CONTAINING FIVE-MEMBERED HETEROCYCLIC NITROGEN COMPOUNDS

Catalysts include five-membered nitrogen containing heterocyclic compounds as ligands for metal ions which have catalytic activity. The catalysts are used to electrolessly plate metal on metal clad and un-clad substrates. 16-. (canceled)8: The catalyst of claim 7 , wherein the one or more compounds are chosen from hydantoin claim 7 , 1-methylhydantoin claim 7 , 1 claim 7 ,3-dimethylhydantoin claim 7 , 5 claim 7 ,5-dimethylhydantoin claim 7 , allantoin claim 7 , 1 claim 7 ,3-dihydroxymethyl-5 claim 7 ,5-dimethylhydantoin and succinimide.9: The catalyst of claim 7 , wherein a molar ratio of the one or more compounds to metal ions is from 1:1 to 4:1.10: The catalyst of claim 7 , wherein the one or more compounds are in amounts of 25 ppm to 1000 ppm. The present invention is directed to catalysts for electroless metallization containing five-membered heterocyclic nitrogen compounds. More specifically, the present invention is directed to catalysts for electroless metallization containing five-membered heterocyclic nitrogen compounds which are stable during storage and electroless metallization.Conventional printed circuit boards (PCBs) consist of laminated non-conductive dielectric substrates that rely on drilled and plated through holes (PTHs) to form a connection between the opposite sides and/or inner layers of a board. Electroless plating is a well-known process for preparing metallic coatings on surfaces. Electroless plating of a dielectric surface requires the prior deposition of a catalyst. The most commonly used method to catalyze or activate laminated non-conductive dielectric substrate regions, prior to electroless plating, is to treat the board with an aqueous tin-palladium colloid in an acidic chloride medium. The colloid consists of a metallic palladium core surrounded by a stabilizing layer of tin(II) ions. A shell of [SnCl] complexes act as surface stabilizing groups to avoid agglomeration of colloids in suspension.In the activation process, the palladium ...

TRANSITION METAL COMPLEXES FOR ENANTIOSELECTIVE CATALYSIS OF CARBON-CARBON, CARBON-HETEROATOM, AND CARBON-HYDROGEN BOND FORMING REACTIONS

In some embodiments, the present disclosure pertains to a compound, comprising a transition metal complex having the formula Φ-[M (x,y)-L(w,v)-L(t,u)-L]AnZ. In an embodiment of the present disclosure Φ may be Λ. In another embodiment Φ may be Λ. In some embodiments of the present disclosure, M is a transition metal. In a related embodiment, p is an integer corresponding to the oxidation state of M. In some embodiments of the present disclosure, each of x, y, w, v, t, and u independently comprise R. In other embodiments, each of x, y, w, v, t, and u independently comprise S. In an embodiment of the present disclosure, each of L, L, and Lindependently is a ligand comprising a substituted diamine. In some embodiments, An comprises a lipophilic anion, where m is from 1 to 3, and where Z comprises an optional second anion. 1. A compound , comprising a transition metal complex having the formula Φ-[M ((x ,y)-L)((w ,v)-L)((t ,u)-L)]AnZ , wherein Φ is Λ or Δ , wherein M is a transition metal , wherein p is an integer corresponding to the oxidation state of M , wherein each of x , y , w , v , t , and u independently comprises one of R and S , wherein each of Land Lindependently is a ligand comprising ethylene diamine , wherein Lis a ligand comprising an pendant Lewis base derivative of ethylene diamine , wherein c is from 1 to 3 , wherein b is from 0 to 2 , wherein An comprises a lipophilic anion , wherein m is from 1 to 3 , and wherein Z comprises a second anion.2. The compound according to claim 1 , wherein the pendant Lewis base derivative of ethylene diamine comprises EN(CH2)NRR claim 1 , wherein EN represents ethylene diamine claim 1 , and wherein n is from 2 to 4.3. The compound according to claim 1 , wherein the transition metal is selected from the group consisting of cobalt claim 1 , iron claim 1 , nickel claim 1 , chromium claim 1 , manganese claim 1 , molybdenum claim 1 , tungsten claim 1 , rhenium claim 1 , ruthenium claim 1 , technetium claim 1 , osmium claim 1 ...

Iron carbide nanoparticles, method for preparing same and use thereof for heat generation

Disclosed are iron nanoparticles, in which at least 70% of the iron atoms they contain are present in an Fe2,2C crystalline structure. In particular, these nanoparticles can be obtained via the carburization of zero-valent iron nanoparticles, by contacting the iron nanoparticles with a gas mixture of dihydrogen and carbon monoxide. The iron carbide nanoparticles are particularly suitable to be used for hyperthermia and for catalyzing Sabatier and Fischer-Tropsch reactions.

Catalytic system for preparation of high branched alkane from olefins

The present invention discloses a catalytic system for preparing highly branched alkane from olefin, which contains novel nickel or palladium complexes. In the presence of the catalytic system, highly branched oily alkane mixture can be efficiently obtained from olefins (such as ethylene) under mild conditions. The alkane mixture has a low bromine number, and can be used as a processing aid(s) and lubricant base oil with high-performance. Provides also was a method for preparing the catalyst and a method for preparing an oily olefin polymer.

Transition metal isonitrile catalysts

The present disclosure relates to new transition metal isonitrile compounds, processes for the production of the compounds and the use of the compounds as catalysts. The disclosure also relates to the use of the metal isonitrile compounds as catalysts for hydrogenation and transfer hydrogenation of compounds containing one or more carbon-oxygen, and/or carbon-nitrogen and/or carbon-carbon double bonds.

Olefin metathesis catalysts and related methods

The present invention provides methods for the synthesis of catalysts and precursors thereof. Methods of the invention may comprise combining a catalyst precursor and at least one ligand to generate a catalytically active species, often under mild conditions and in high yields. In some cases, a wide variety of catalysts may be synthesized from a single catalyst precursor. Methods of the invention may also include the preparation of catalysts which, under reaction conditions known in the art, may have been difficult or impossible to prepare and/or isolate due to, for example, steric crowding at the metal center. The present invention also provides catalyst compositions, and precursors thereof, which may be useful in various chemical reactions including olefin metathesis. In some cases, methods of the invention may reduce the number of synthetic and purification steps required to produce catalysts and/or other reaction products, as well as reducing time, cost, and waste production.

RUTHENIUM-DIAMINE COMPLEXES AND METHOD FOR PRODUCING OPTICALLY ACTIVE COMPOUNDS

Provided is a catalyst for asymmetric reduction, which can be produced by a convenient and safe production method, has a strong catalytic activity, and has excellent stereoselectivity. The present invention relates to a ruthenium complex represented by the following formula (1): wherein Rrepresents an alkyl group or the like; Y represents a hydrogen atom; X represents a halogen atom or the like; j and k each represent 0 or 1; Rand Reach represent an alkyl group or the like; Rto Reach represent a hydrogen atom, an alkyl group or the like; Z represents oxygen or sulfur; nrepresents 1 or 2; and nrepresents an integer from 1 to 3, a method for producing the ruthenium complex, a catalyst for asymmetric reduction formed from the ruthenium complex, and methods for selectively producing an optically active alcohol and an optically active amine using the catalyst for asymmetric reduction. 12-. (canceled)4. A method for producing a reduction product by reducing an organic compound in the presence of the ruthenium complex as set forth in and a hydrogen donor.5. A method for producing an optically active alcohol claim 3 , the method comprising reducing a carbonyl group of a carbonyl compound in the presence of the ruthenium complex according to and a hydrogen donor.6. A method for producing an optically active amine claim 3 , the method comprising reducing an imino group of an imine compound in the presence of the ruthenium complex according to and a hydrogen donor.7. The method according to claim 4 , wherein the hydrogen donor is selected from formic acid claim 4 , a formic acid alkali metal salt claim 4 , and an alcohol having a hydrogen atom on the α-position carbon atom substituted with a hydroxyl group.8. The method according to claim 4 , wherein the hydrogen donor is hydrogen.9. A catalyst for reduction claim 3 , comprising the ruthenium complex according to .10. The catalyst according to claim 9 , wherein the catalyst is a catalyst for asymmetric reduction. The present ...

Open electrodes for in-plane field generation

An electrode film includes a first electrode pattern having a first set of parallel conductive electrodes and a second electrode pattern having a second set of parallel conductive electrodes disposed on a surface of a transparent film. The conductive electrodes in the first and second electrode patterns are conductive mesh patterns including a pattern of open areas and are arranged in an interlaced pattern. The first and second electrode patterns are configured to be connected to respective sources of electrical power supplying respective waveforms to generate a time-varying electric field pattern above a surface of the electrode film.

THERMOLATENT CATALYST AND ITS USE IN CURABLE COMPOSITIONS

Tin-containing catalysts are provided comprising a compound of formula I. 2. The compound of comprising a reaction product of:(i) a tin(IV) compound; and (a) a compound having two secondary amine groups and two additional active hydrogen-containing functional groups that may be the same as or different from the amine groups and from each other; and', '(b) a reactant comprising an isocyanate, an ethylenically unsaturated compound, a lactone, a dilactone, a thiolactone, a lactam, a thiolactam, a carboxylic acid or derivative thereof, and/or an epoxide., '(ii) an adduct of3. The compound of claim 2 , wherein the tin(IV) compound (i) comprises tin(IV) chloride claim 2 , tin(IV) isopropoxide and/or tin(IV) tertbutoxide.4. The compound of claim 2 , wherein the compound (a) having two secondary amine groups and two additional active hydrogen-containing functional groups comprises N claim 2 , N′-bis(hydroxyethyl) ethylenediamine.5. The compound of claim 2 , wherein the reactant (b) comprises 2-ethylhexyl acrylate and/or butyl acrylate.6. A curable composition comprising:(A) a first reactive compound comprising reactive functional groups;(B) a second reactive compound comprising functional groups reactive with the reactive functional groups in (A); and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(C) a catalyst component comprising at least one compound of .'}7. The curable composition of claim 6 , wherein the first reactive compound (A) comprises a polyisocyanate claim 6 , polyepoxide claim 6 , polyol claim 6 , and/or polyacid.8. The curable composition of claim 6 , wherein the second reactive compound (B) contains hydroxyl claim 6 , acid claim 6 , and/or thiol reactive functional groups.9. The curable composition of claim 8 , wherein the second reactive compound (B) comprises an acrylic polymer claim 8 , a polyether polymer claim 8 , polyurethane and/or a polyester polymer.10. The curable composition of claim 6 , wherein the first reactive compound (A) comprises a ...

A PROCESS FOR THE PREPARATION OF ENANTIOMERICALLY PURE NOREPINEPHRINE

The invention concerns a new, efficient process for the preparation of enantiomerically pure norepinephrine (also known as noradrenaline), or an addition salt thereof, using a catalytic hydrogenation system under hydrogen donor transfer. The invention also discloses a novel intermediate and the process for the preparation thereof. 2. The process of wherein in the compound of formula III R is selected from the group of hydrogen claim 1 , a carboxyl group claim 1 , an alkyl radical having from of 1 to 17 carbon atoms claim 1 , or an aryl radical of not more than 12 carbon atoms claim 1 , said alkyl claim 1 , cycloalkyl and aryl radical being optionally substituted by a further carboxyl group.3. The process of wherein in step a) in the compound of formula IV X is Cl claim 1 , the solvent is water and the auxiliary base is triethylamine or benzylamine.4. The process of wherein in step a) the carboxylic acid is selected from the group consisting of formic claim 1 , acetic claim 1 , propionic claim 1 , oxalic claim 1 , malonic claim 1 , succinic claim 1 , benzoic claim 1 , toluic claim 1 , o-phthalic and tartaric acid claim 1 , preferably formic acid and acetic acid.5. The process of claim 1 , wherein step b) comprises reacting a compound of Formula III with hydrogen or an hydrogen source in the presence of a suitable catalyst claim 1 , to obtain enantioselectively a compound of Formula V and optionally isolating the compound of Formula V as a free base or acid addition salt thereof.7. The process of claim 6 , wherein in the compounds of formula VI n is 1 and the catalyst is selected from the group of C3-[(S claim 6 ,S)-teth-TsDPEN-RuCl] claim 6 , C3-[(S claim 6 ,S)-teth-MtsDPEN-RuCl] claim 6 , C3-[(S claim 6 ,S)-teth-MesDPEN-RuCl] claim 6 , and C3-[(S claim 6 ,S)-teth-TrisDPEN-RuCl] claim 6 , preferably C3-[(S claim 6 , S)-teth-TsDPEN-RuCl].8. The process of wherein step c) comprises reacting compound of Formula V with hydrogen or a hydrogen source claim 1 , in the ...

Catalysts and processes for the hydrogenation of amides

There is provided a process for the reduction of one or more amide moieties in a compound comprising contacting the compound with hydrogen gas and a transition metal catalyst in the presence or absence of a base under conditions for the reduction an amide bond. The presently described processes can be performed at low catalyst loading using relatively mild temperature and pressures, and optionally, in the presence or absence of a base or high catalyst loadings using low temperatures and pressures and high loadings of base to effect dynamic kinetic resolution of achiral amides.

NOVEL DIAMINE COMPOUND AND METAL COMPLEXES, AND METHOD FOR PRODUCING OPTICALLY ACTIVE COMPOUNDS

The present invention relates to a novel diamine compound represented by the general formula (1), a ruthenium-diamine complex, an iridium-diamine complex, and a rhodium-diamine complex having the diamine compound as a ligand. Furthermore, the present invention relates to methods for selectively producing optically active compounds by using any of these complexes as a catalyst. 3. A method for producing an optically active amine or an optically active compound , comprising:{'claim-ref': {'@idref': 'CLM-00002', 'claim 2'}, 'reducing an imino group of an imine compound or an unsaturated bond of a heterocyclic compound in the presence of the complex according to and a hydrogen donor.'}4. The production method according to claim 3 , wherein the hydrogen donor is hydrogen.5. The production method according to claim 3 , wherein the hydrogen donor is selected from formic acid claim 3 , alkali metal formates claim 3 , and alcohols having a hydrogen atom on a carbon atom at an α-position of a carbon atom substituted with a hydroxyl group.6. A catalyst for asymmetric reduction claim 2 , comprising the complex according to .7. A method for asymmetric reduction of an imine compound or a heterocyclic compound comprising: reducing an imino group of the imine compound or an unsaturated bond of the heterocyclic compound in the presence of a catalyst comprising the complex according to and a hydrogen doner. The present invention relates to a novel diamine compound, a ruthenium-diamine complex, an iridium-diamine complex, and a rhodium-diamine complex having the diamine compound as a ligand, and methods for selectively producing optically active compounds important as precursors for synthesis of pharmaceuticals and functional materials by using any of these complexes as a catalyst.In the field of production of optically active amines, many asymmetric reactions including asymmetric reduction have been developed, and many asymmetric reactions using asymmetric metal complexes having ...

Synthesis of 4-(pentafluorosulfanyl)benzenediazonium tetrafluoroborate and Analogs

4-(pentafluorosulfanyl)benzenediazonium tetrafluoroborate salt was synthesized and isolated. The pentafluorosulfanyl salt was examined in a wide assortment of reactions to form novel SF 5 -bearing alkenes, alkynes, and biaryl derivatives using Heck-Matsuda, Sonogashira, and Suzuki coupling protocols. Dediazoniation of the salt furnished the corresponding p-SF 5 —C 6 H 4 X,C 6 H 4 OS(O)(CF 3 )═NSO 2 CF 3 , and p-SF 5 —C 6 H 4 —NTf 2 derivatives. The azide derivative p-SF 5 —C 6 H 4 N 3 entered into click chemistry with phenylacetylenes to furnish the corresponding triazoles. Various SF 5 -bearing alkenes were synthesized by coupling reactions using a metal catalyst. Fluorodediazoniation selectively furnished the fluoro derivative p-SF 5 —C 6 H 4 F. Homolytic dediazoniation gave the unsymmetrical biaryls, thus demonstrating the broad utility of pentafluorosulfanyl diazonium salts as building blocks of SF5-aromatics that are in high demand in many branches of chemistry including biomedicine and materials chemistry.

METHODS OF USING MULTI-LIGAND METAL COMPLEXES TO PERFORM OXIDATIVE CATALYTIC PRETREATMENT OF LIGNOCELLULOSIC BIOMASS

A homogeneous catalyst is provided comprising one or more metals; and at least two metal coordinating ligands wherein the homogeneous catalyst is a multi-ligand metal complex_adapted for use with an oxidant in an oxidation reaction to catalytically pretreat lignocellulosic biomass. In one embodiment, the homogenous catalyst is copper (II) 2, 2′ bipyridine ethylenediamine (Cu(bpy)en). Related methods are also disclosed. 110-. (canceled)11. A method comprising:catalytically delignifying alkaline-pretreated lignocellulosic biomass with a homogeneous multi-ligand metal complex catalyst and an oxidant in an oxidation reaction, wherein said metal complex comprises a combination of a metal-ligand complex and at least one metal coordinating ligand selected from pyridine, 1,10-phenanthroline, ethylenediamene, histidine, glycine and combinations thereof, wherein radicals formed during the oxidation reaction react with lignin present in the alkaline-pretreated lignocellulosic biomass to solubilize the lignin to produce a catalytically delignified lignocellulosic biomass.12. The method of wherein the alkaline-pretreated lignocellulosic biomass claim 11 , the multi-ligand metal complex and the oxidant form a solution having a pH of at least 11.5.13. The method of wherein the oxidant is hydrogen peroxide claim 12 , the radicals formed during the oxidation reaction are hydroxyl radicals claim 12 , and the multi-ligand metal complex is a multi-ligand copper complex.14. The method of wherein the copper complex is a copper(II) 2 claim 13 ,2′-bipyridine complex (Cu(bpy)) modified to contain at least one additional metal-coordinating ligand.15. The method of wherein said additional metal-coordinating ligand is ethylenediamine.16. The method of wherein the oxidant is added at a gradual rate equal to or less than a rate of consumption of the oxidant by the alkaline-pretreated lignocellulosic biomass and the multi-ligand metal complex.17. (canceled)18. The method of wherein the method ...

Method for converting carbon dioxide and bicarbonates into formic acid derivatives using a cobalt complex as a catalytic system

The invention relates to a method for converting carbon dioxide or bicarbonates into formic acid derivatives, i.e. formate salts, formate esters, and formamides, using molecular hydrogen and a catalytic system comprising a cobalt complex of cobalt salt and at least one tripodal, tetradentate ligand. The catalyst complex can be used as a homogeneous catalyst. The invention further relates to the cobalt complexes per se.

POLYCARBONATE BLOCK COPOLYMERS AND METHODS THEREOF

The present disclosure relates to block copolymers comprising, and methods of making thereof, a polycarbonate chain linked to a hydrophilic polymer. Such block copolymers may have the formula B-A-B, where A is a polycarbonate or polyethercarbonate chain and B is a polyether. Provided methods are useful in reducing the amount of waste generated from the synthesis of polycarbonates and provide improved thermal stability and high primary hydroxyl content. Provided block copolymers also have utility as additives in enhanced oil recovery methods, and foam polymer applications. 1. A method of making a block copolymer composition of the formula B-A-B , comprising the steps of:i) copolymerizing epoxide and carbon dioxide in the presence of a chain transfer agent and a first catalyst to provide a first polymer A; andii) homopolymerizing epoxide on the chain ends of the first polymer A by addition of a second catalyst to provide a second polymer, B-A-B.2. The method of claim 1 , wherein A is an oligomer selected from a polycarbonate and polyethercarbonate chain.3. The method of claim 1 , wherein the epoxide homopolymerized in step ii) is residual epoxide from step i).4. The method of claim 1 , wherein step i) is not quenched until the addition of the second catalyst.5. The method of claim 1 , wherein the reaction is quenched prior to step ii).6. The method of claim 1 , wherein steps i) and ii) are accomplished in the same reactor.7. The method of claim 1 , wherein the first catalyst is a transition metal complex.8. The method of claim 7 , wherein the first catalyst is a metal salen complex.12. The method of claim 1 , wherein a second catalyst is selected from the group consisting of: Y(OTf) claim 1 , Zn(OTf) claim 1 , Ga(OTf) claim 1 , Al(OTf) claim 1 , (nBu)B(OTf) claim 1 , BF.OEt claim 1 , BCl claim 1 , P(CF) claim 1 , Cu(BF) claim 1 , [2 claim 1 ,4 claim 1 ,6-(CH)CH]BF claim 1 , (CFSO)NH claim 1 , PhB+P-Bu claim 1 , EtB+P-Bu claim 1 , and B(CF) claim 1 , Yb(OTf) claim 1 , ...

Novel ruthenium complex and process for producing optically active alcohol compound using same as catalyst

The present invention provides a novel ruthenium complex which has an excellent catalytic activity in terms of reactivity for an asymmetric reduction of a carbonyl compound and enantioselectivity, a catalyst using the ruthenium complex, and a method for preparing optically active alcohol compounds using the ruthenium complex. The present invention relates to a ruthenium complex having a ruthenacycle structure, a catalyst for an asymmetric reduction consisting of the ruthenium complex, and a method for preparing optically active alcohol compounds using the ruthenium complex.

COMPOSITION OF MATTER

The method relates to the field of asymmetric allylic amination and comprises preparing a chiral N-substituted allylic amine compound from the corresponding allylic substrates and substituted hydroxylamines, in the presence of a catalyst, said catalyst comprising copper compounds and a chiral ligand. Examples of chiral amine compounds which can be made using the method include Vigabatrin, Ezetimibe Terbinafine, Naftifine 3-methylmorphine, Sertraline, Cinacalcet, Mefloquine hydrochloride, and Rivastigmine. There are over 20,000 known bioactive molecules with chiral N-substituted allylic amine substructure. The method may also be used to produce non-natural chiral 13-aminoacid esters, a sub-class of chiral N-substituted allylic amine compounds. Examples of 13-aminoacid ester which can be produced by the disclosed method, include, but are not limited to, N-(2-methylpent--en-3-yl)benzenamine and Ethyl 2-methylene-3-(phenylamino)butanoate. Further, the products of the method described herein can be used to produce chiral heterocycles and bioactive molecules or materials. A novel chiral copper-BINAM nitrosoarene complex is also set forth. 1. A chemical compound comprising:a. a copper atom;b. two nitrosoarenes;c. two nitrogen donor ligands; andd. two counterions.2. The chemical compound of wherein the compound is a chiral coppernitrosoarene complex.3. The chemical compound of wherein at least one ligand is chiral.4. The chemical compound of wherein the copper atom is bonded to two chiral nitrogen-donor ligands claim 1 , such as BINAM claim 1 , NOBIN claim 1 , and related substituted ligands.5. The chemical compound of wherein the copper atom is bonded to two nitrosoarenes claim 1 , such as nitrosobenzene claim 1 , and related substituted nitrosobenzenes.6. The chemical compound of wherein the copper complex is associated with at least one counter ion such as triflates or halides.7. The chemical compound synthesized from the process of combining copper (II) salt [Cu(X)2] ...

OXIDATION METHOD

Disclosed is a method of oxidizing a substrate comprising contacting the substrate, an oxidant, and a solid phase comprising a plurality of pendant groups having affinity for a substrate to be oxidised and an oxidation catalyst. Also disclosed is a solid phase and membrane for use in the method. Also disclosed is a method for preparing the solid phase, and system for oxidizing a substrate. 1. A method of oxidising a substrate , the method comprising:(i) providing a substrate to be oxidised,(ii) providing an oxidant, and(iii) providing a solid phase comprising a plurality of pendant groups having affinity for the substrate, and an oxidation catalyst, wherein the solid phase is a film or membrane, and(iv) contacting the substrate to be oxidised, the oxidant, and the solid phase to oxidize the substrate.2. The method of claim 1 , wherein the solid phase is a membrane permeable to the oxidant.3. The method of or claim 1 , wherein the membrane separates a source of the oxidant from the substrate to be oxidised.4. The method of any preceding claim claim 1 , wherein one or more of the pendant groups define a first zone or zones adjacent a surface of the solid phase for concentrating the substrate claim 1 , wherein the first zone or zones comprise at least a portion of the one or more pendant groups.5. The method of any preceding claim claim 1 , wherein the catalyst is immobilised on a pendant group.6. The method of any one of to claim 1 , wherein the catalyst is immobilised on a surface of the solid phase.7. The method of any preceding claim claim 1 , wherein the pendant groups are covalently attached to the solid phase.8. The method of any preceding claim claim 1 , wherein the pendant groups are attached to particles on or in the solid phase.9. The method of claim 8 , wherein the particles comprise an inorganic material.10. The method of claim 9 , wherein the particles comprise titania claim 9 , silica or alumina.11. The method of any preceding claim claim 9 , wherein a ...

CATALYST FOR SYNTHESIZING METHANOL OR ITS PRECURSOR, METHOD FOR PREPARING THE CATALYST AND METHOD FOR PRODUCING METHANOL OR ITS PRECURSOR USING THE CATALYST

Disclosed is a novel catalyst having amine ligands for synthesizing methanol or its precursor. When the catalyst is allowed to react with an alkane in the presence of an acid, at least one C—H bond of the alkane is catalytically oxidized. Therefore, the catalyst is suitable for use in forming an alkyl ester from an alkane. 2. The catalyst according to claim 1 , wherein the catalyst has the structure of Formula 1 wherein R claim 1 , R′ claim 1 , R claim 1 , and R′ are the same as or different from each other and are each independently hydrogen or a C-Calkyl group claim 1 , X and X′ are the same as or different from each other and are each independently selected from hydrogen claim 1 , C-Calkyl groups claim 1 , halogen groups claim 1 , C-Calkoxy groups claim 1 , a nitro group claim 1 , a carboxyl group claim 1 , and a sulfonic acid group (—SOH) claim 1 , and Y claim 1 , Y′ claim 1 , Y claim 1 , and Y′ are the same as or different from each other and are each independently hydrogen or a C-Calkyl group.3. The catalyst according to claim 2 , wherein R claim 2 , R′ claim 2 , R claim 2 , and R′ are the same as or different from each other and are each independently hydrogen or a methyl group claim 2 , X and X′ are the same as or different from each other and are each independently selected from hydrogen claim 2 , a methyl group claim 2 , halogen groups claim 2 , a methoxy group claim 2 , a nitro group claim 2 , a carboxyl group claim 2 , and a sulfonic acid group (—SOH) claim 2 , and Y claim 2 , Y′ claim 2 , Y claim 2 , and Y′ are the same as or different from each other and are each independently hydrogen or a methyl group.4. The catalyst according to claim 2 , wherein R claim 2 , R′ claim 2 , R claim 2 , and R′ are all hydrogen claim 2 , X and X′ are the same and are selected from hydrogen claim 2 , C-Calkyl groups claim 2 , halogen groups claim 2 , C-Calkoxy groups claim 2 , a nitro group claim 2 , a carboxyl group claim 2 , and a sulfonic acid group (—SOH) claim 2 , ...

CATALYST SYSTEM FOR OLEFIN OLIGOMERIZATION AND METHOD FOR OLEFIN OLIGOMERIZATION USING THE SAME

The present invention relates to a catalyst system for olefin oligomerization and a method for olefin oligomerization, and more specifically, a catalyst system for olefin oligomerization and a method for olefin oligomerization that have more improved supporting efficiency due to a ligand compound capable of functioning as a tether to a support, and thus, exhibit high activity in the olefin oligomerization even with smaller amounts of catalyst composition and cocatalyst, thus enabling more efficient preparation of alpha-olefins. 2. The catalyst system for olefin oligomerization according to claim 1 , wherein the unshared electron pair belonging to one or more diphosphino moieties among the two or more disphosphino moieties included in the ligand compound claim 1 , is coordinated to the chromium atom.3. The catalyst system for olefin oligomerization according to claim 1 , wherein among the two or more disphosphino moieties included in the ligand compound claim 1 , one or more diphosphino moieties are tethered to the support.4. The catalyst system for olefin oligomerization according to claim 1 , wherein the ratio of the mole number of the chromium atom to the mole number of the ligand compound is 1 or less.6. The catalyst system for olefin oligomerization according to claim 1 , wherein L is a linker with a carbon number of the shortest distance connecting the diphosphino moieties of 4 to 10 claim 1 , and is a C2-20 aliphatic linking group claim 1 , a C3-20 cycloaliphatic linking group claim 1 , or a C6-20 aromatic linking group.7. The catalyst system for olefin oligomerization according to claim 1 , wherein the chromium source is one or more compounds selected from the group consisting of chromium(III) acetylacetonate claim 1 , chromium(III) chloride tetrahydrofurane claim 1 , chromium(III) 2-ethylhexanoate claim 1 , chromium(III) acetate claim 1 , chromium(III) butyrate claim 1 , chromium(III) pentanoate claim 1 , chromium(III) laurate claim 1 , chromium(III) tris(2 ...

USE OF IMMOBILIZED MOLYBDENUM- AND TUNGSTEN-CONTAINING CATALYSTS IN OLEFIN CROSS METATHESIS

Method of forming an olefin from a first olefin and a second olefin in a metathesis reaction, comprising step (i): (i) reacting the first olefin with the second olefin in the presence of a silica supported Mo- or W-alkylidene catalyst, wherein the first olefin and the second olefin are different from one another. 1. Method of forming an olefin from a first olefin and a second olefin in a metathesis reaction , comprising step (i):(i) reacting the first olefin with the second olefin in the presence of a silica supported Mo-alkylidene or W-alkylidene catalyst,wherein the first olefin and the second olefin are different from one another.2. Method of claim 1 , wherein(a) the first olefin is a cyclic olefin and the second olefin is a cyclic olefin; or(b) the first olefin is a cyclic olefin and the second olefin is a non-cyclic olefin; or(c) the first olefin is a non-cyclic olefin and the second olefin is a non-cyclic olefin.3. Method of or claim 1 , wherein the first olefin or the second olefin is a C-Colefin.4. Method of any one of the preceding claims claim 1 , wherein the first olefin has an internal olefinic double bond and the second olefin is ethylene claim 1 , preferably wherein the first olefin is 2-butene.6. Method of claim 5 , wherein{'sup': '1', 'Ris aryl or adamant-1-yl, optionally substituted, respectively; preferably wherein'}{'sup': '1', 'sub': 1', '4', '1', '4', '3, 'Ris phenyl or phenyl substituted with up to five substituents independently selected from C-Calkyl, C-Calkoxy, CF, F, Cl, Br; or phenyl or phenoxy, optionally substituted, respectively;'}{'sup': '2', 'sub': 3', '2', '6', '5', '3', '3, 'Ris —C(CH)CHor —C(CH);'}{'sup': '3', 'Ris H;'}{'sup': 5', '6, 'claim-text': [{'sup': '6', 'sub': 1', '4', '1', '4, 'X═O and Ris phenyl or phenyl substituted with up to five substituents independently selected from alkyl, preferably C-Calkyl, such as methyl, isopropyl or t-butyl; alkoxy, preferably C-Calkoxy; phenoxy, phenyl, optionally substituted, respectively; ...

METAL CATALYST, METHOD OF C-N COUPLING USING THE SAME AND APPLICATIONS OF THE SAME

A method for C—H bond activation and/or C—N coupling reaction comprises adding a hydrocarbon material to a container; adding a metal catalyst to the container; adding a primary or a secondary amine to the container. The metal catalyst is represented by the following formula: 2. The method according to claim 1 , wherein the amount of the metal catalyst is 0.02 to 2 mol %. This application is a divisional application of U.S. patent application Ser. No. 17/148,736, filed Jan. 14, 2021, now allowed, which is a divisional application of U.S. patent application Ser. No. 16/054,181, filed Aug. 3, 2018, abandoned, which claims priority to and the benefit of U.S. Provisional Patent Application Ser. No. 62/540,770, filed Aug. 3, 2017, which are incorporated herein in their entireties by reference.The present disclosure relates to a metal catalyst, a method of C—N coupling using a metal catalyst and applications of the same. In certain embodiments, a metal catalyst with varying substituents is used for direct coupling of primary and secondary amines with hydrocarbons containing activated and non-activated C—H bonds (spcarbon).The background description provided herein is for the purpose of generally presenting the context of the disclosure. Work of the presently named inventor, to the extent it is described in this background section, as well as aspects of the description that may not otherwise qualify as prior art at the time of filing, are neither expressly nor impliedly admitted as prior art against the present disclosure.Nitrogen-based compounds have great value in various fields ranging from fine chemicals to pharmaceuticals. In particular, aromatic nitrogen-based compounds have even more great value, extending to even more fields such as agrochemicals, electronica materials, xerography, pigmentation, and photography. Because of their diverse uses, developing a cheap and easy to use methodology for C—N coupling has become an area of great importance.In the past several ...

TITANIUM (IV) COMPOUNDS AND METHODS OF FORMING HETEROCYCLIC COMPOUNDS USING SAME

The present disclosure provides Titanium (IV) compounds and methods of making heterocyclic compounds such as pyrroles using Titanium (IV) compounds. In certain embodiments, the Titanium (IV) compound is present in catalytic amounts. 2. The compound of wherein each Rindependently represents an alkyl group or an aryl group; each X independently represents an inorganic anionic ligand; and each L independently represents a neutral organic coordinating ligand.3. A method of forming a heterocyclic compound comprising:combining at least one compound having a triple bond, at least one azo compound, and at least one Ti(IV) compound under conditions effective for a [2+2+1] cycloaddition reaction to occur and form one or more heterocyclic compounds.5. The method of wherein each Rindependently represents an alkyl group or an aryl group; each X independently represents an inorganic anionic ligand; and each L independently represents a neutral organic coordinating ligand.6. The method of wherein the at least one azo compound is of the formula R—N═N—R claim 4 , wherein each Rindependently represents an organic group.7. The method of wherein each Rindependently represents an alkyl group or an aryl group.8. The method of wherein the at least one compound having a triple bond is at least one alkyne claim 4 , and the one or more heterocyclic compounds formed include one or more pyrroles.10. The method of wherein each Rindependently represents an alkyl group or an aryl group; and each Rand Rindependently represents hydrogen claim 9 , an alkyl group claim 9 , or an aryl group.12. The method of wherein each Rindependently represents an alkyl group or an aryl group; and each Rand Rindependently represents hydrogen claim 11 , an alkyl group claim 11 , or an aryl group.13. The method of wherein the at least one compound having a triple bond is at least one nitrile-functional compound claim 4 , and the one or more heterocyclic compounds formed include one or more triazoles.15. The method of ...

PREPARATION OF SATURATED KETONE MORPHINAN COMPOUNDS BY CATALYTIC ISOMERISATION

There is provided a novel process for the preparation of a compound of formula I, wherein R, Rand Rare as described in the description, by conversion of a corresponding allylic alcohol. 2. A process as claimed in claim 1 , wherein Rrepresents hydrogen and Rrepresents methyl.3. A process as claimed in or claim 1 , wherein Rrepresents hydrogen claim 1 , Rrepresents methyl and Rrepresents hydrogen or methyl.4. A process as claimed in any one of the preceding claims wherein the organic additive is:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'sup': x1', 'x2', 'x3, 'sub': 1-4', '6-10', '1-4, '(a) a compound of formula IIIa, as defined in , wherein R, Rand Reach independently represents hydrogen, a Calkyl alcohol, a Caryl group or a 5- to 10-membered heteroaryl group (which latter three groups may be optionally substituted by one or more halo atoms or Calkyl groups);'}{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'sup': x4', 'x5, 'sub': 1-4', '6-10', '1-4, '(b) a compound of formula IIIb, as defined in , wherein Rand Reach independently represents a Calkyl group, a Caryl group or a 5- to 10-membered heteroaryl group (which three groups may be optionally substituted by one or more halo atoms or Calkyl groups);'}{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'sup': x6', 'x7, '(c) a compound of formula IIIc, as defined in , wherein Rand Rare linked together, along with the requisite oxygen atom to which they are attached, to form a 5- to 6-membered cyclic ether (which ring may be optionally substituted by one or more halo atoms or methyl groups); or'}{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'sup': x8', 'x9, 'sub': 1-4', '2-4', '1-4, '(d) a compound of formula IIId, as defined in , wherein Rand Rindependently represent a Calkyl group, or a Calkenyl group (which groups may be optionally substituted by one or more halo atoms or Calkyl groups).'}5. A process as claimed in claim 4 , wherein the organic additive is tert-butanol claim 4 , isopropanol or acetone ...

Recyclable metathesis catalysts

Highly active, recoverable and recyclable transition metal-based metathesis catalysts and their organometallic complexes including dendrimeric complexes are disclosed, including a Ru complex bearing a 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene and styrenyl ether ligand. The heterocyclic ligand significantly enhances the catalytic activity, and the styrenyl ether allows for the easy recovery of the Ru complex. Derivatized catalysts capable of being immobilized on substrate surfaces are also disclosed. The present catalysts can be used to catalyze ring-closing metathesis (RCM), ring-opening (ROM) and cross metatheses (CM) reactions, and promote the efficient formation of various trisubstituted olefins at ambient temperature in high yield.

N-heterocyclic carbene type palladium catalyst and its preparation method as well as applications

The present invention relates to an n-heterocyclic carbene (NHC) type palladium catalyst and its preparation method as well as applications. Its preparation process is as below: select glyoxal as the raw material to synthesize glyoxaldiimine in the presence of Lewis acid or Bronsted acid, and then react with paraformaldehyde to get the NHC type ligand. Use palladium (II) to react with the compound containing carbon-nitrogen double bonds to get palladium (II) cyclic dimer; make the palladium cyclic dimer and the NHC type ligand coordinated to get the NHC type palladium catalyst. The palladium catalyst with a brand new structure according to the present invention, boasts high activity and multi-purpose. In addition, it shows excellent reaction activity in a lot of catalytic-coupling reactions including Suzuki-Miyaura, Heck, Buchwald-Hartwig, Kumada-Tamao-Corriu, Sonogashira, Negishi and α-ketone arylation reactions, and some reactions even can be carried out with the presence of an extremely low concentration of catalyst, exhibiting favorable industrialization prospect.

CHIRAL LIGAND-BASED METAL-ORGANIC FRAMEWORKS FOR BROAD-SCOPE ASYMMETRIC CATALYSIS

Metal-organic framework (MOFs) compositions based on chiral phosphine-, chiral oxazoline-, chiral pyridine-, and chiral diene-derived organic bridging ligands were synthesized and then post-synthetically metalated with metal precursors such as Ru and Rh complexes. The metal complexes could also be directly incorporated into the MOFs. The MOFs provide a versatile family of recyclable and reusable single-site solid catalysts for catalyzing a variety of asymmetric organic transformations, including the addition of arylboronic acids to α,β-unsaturated ketones and alkimines, the hydrogenation of substituted alkene and carbonyl compounds, and cyclization reactions. The solid catalysts can also be integrated into a flow reactor or a supercritical fluid reactor. 1. A method for preparing a stable , crystalline , and porous metal-organic framework (MOF) , wherein said crystalline and porous MOF comprises periodic repeats of a metal-based secondary building unit (SBU) and a chiral bridging ligand , said method comprising providing a chiral bridging ligand , optionally wherein said chiral bridging ligand is selected from a chiral phosphine , a chiral oxazoline , a chiral pyridine , and a chiral diene; and contacting the chiral bridging ligand with a first metal source to obtain the crystalline and porous MOF.2. The method of claim 1 , wherein the chiral bridging ligand is substituted with one or more carboxylate claim 1 , pyridine claim 1 , and/or phosphonate moieties.3. The method of claim 2 , wherein the chiral bridging ligand is a dicarboxylate claim 2 , a tricarboxylate claim 2 , a tetracarboxylate claim 2 , a bipyridine claim 2 , a tripyridine claim 2 , a tetrapyridine claim 2 , a diphosphonate claim 2 , a triphosphonate claim 2 , or a tetraphosphonate.4. The method of claim 1 , wherein the chiral bridging ligand is a carboxylate claim 1 , pyridine claim 1 , or phosphonate derivative of a chiral bisphosphine.5. The method of claim 4 , wherein the chiral bridging ligand is ...

PROCESS FOR THE PREPARATION OF DEUTERATED ETHANOL FROM D2O

The invention relates to a process for the preparation of a deuterated ethanol from ethanol, DO, a ruthenium catalyst, and a co-solvent. 2. The process of claim 1 , wherein the abundance of D in Rand Ris at least 90%3. (canceled)4. The process of claim 1 , wherein the abundance of D in Rand Ris at least 90% and the abundance of D in R-Ris at most 10%.5. (canceled)6. The process of claim 1 , wherein the catalyst is of formula (III).7. (canceled)8. The process of claim 1 , wherein the alkali metal borohydride is NaBH.9. (canceled)10. The process of claim 1 , wherein the catalyst is of formula (III) and the reaction is performed in the absence of NaOH.11. The process of claim 10 , wherein the alkali metal borohydride is NaBH.12. (canceled)13. The process of claim 1 , wherein the catalyst is of formula (IV).14. (canceled)15. The process of claim 1 , wherein the catalyst is of formula (IV) and the reaction is performed in the absence of a base.16. (canceled)17. The process of claim 1 , wherein the reacting step comprises claim 1 ,{'sub': '2', 'a) reacting a first portion of DO with ethanol to form a reacted mixture;'}b) distilling the reacted mixture and collecting a distillate therefrom; and,{'sub': 2', '2, 'c) adding a second portion of DO to the distillate to further react unreacted ethanol with DO.'}18. The process of claim 17 , wherein the molar ratio of DO to ethanol mixed in each of the reaction sub-steps a) and c) is independently from 1-5.19. The process of claim 1 , wherein the reacting step comprises claim 1 ,{'sub': '2', 'a) reacting a first portion of DO with ethanol to form a first reacted mixture;'}b) distilling the first reacted mixture and collecting a first distillate therefrom;{'sub': '2', 'c) adding a second portion of DO to the first distillate to further react with unreacted ethanol to form a second reacted mixture;'}d) distilling the second reacted mixture and collecting a second distillate therefrom; and,{'sub': '2', 'e) adding a third portion of ...

Catalyst composition, methods of preparation and use in a polymerization process

Polymerization catalyst compositions are provided as are methods of their preparation. The compositions comprise fatty amines and find advantageous use in olefin polymerization processes. The catalyst composition comprises at least one supported polymerization catalyst wherein the catalyst composition is modified with at least one fatty amine wherein the fatty amine is substantially free of particulate inorganic material.

Catalyst intended for desulfurization/demercaptanization/dehydration of gaseous hydrocarbons

This application is in the field of technologies for desulfurization and demercaptanization of raw gaseous hydrocarbons (including natural gas, tail gas, technological gas, etc., including gaseous media). It can be used for simultaneous dehydration and desulfurization/demercaptanization of any kind of raw gaseous hydrocarbons.

FUNCTIONALISED NITRILE RUBBERS AND THE PRODUCTION THEREOF

Provided are new functionalized nitrile rubbers, which may optionally also be in partially or wholly hydrogenated form, and also a process for preparing them by metathesis of nitrile rubbers in the presence of a metathesis catalyst and at least one functionalized allyl compound. The new functionalized nitrile rubbers are suitable for producing vulcanizable mixtures and allow the production of vulcanizates having very stable networks. Also made possible, in particular, is the synthesis of block copolymers. 4. Process according to or , characterized in that in the functionalized olefin of the general formula (I) or (II){'sup': 1', '1, 'sub': 1', '12', '7', '18', '1', '6', '7', '12, 'claim-text': [{'sub': 2', '2', 'n', '1', '12', '7', '18', '1', '6', '7', '12, 'sup': 2', '2, 'O—(CH—CH—O)—R, in which Ris H, C-Calkyl, C-Caralkyl, phenyl, naphthyl or fluorenyl and preferably is H, C-Calkyl, C-Caralkyl or phenyl, and n is 1 to 20 and preferably 1 to 6,'}, {'sub': 2', '3', 'n', '1', '12', '7', '18', '1', '6', '7', '12, 'sup': 3', '3, 'O—(CH—CH(CH)—O)—R, in which Ris H, C-Calkyl, C-Caralkyl, phenyl, naphthyl or fluorenyl and preferably is H, C-Calkyl, C-Caralkyl or phenyl and n is 1 to 20 and preferably 1 to 6,'}, {'sup': 4', '4, 'sub': 1', '12', '7', '18', '1', '6', '7', '12, 'O—C(═O)—R, in which Ris H, C-Calkyl, C-Caralkyl, phenyl, naphthyl or fluorenyl and preferably is H, C-Calkyl, C-Caralkyl or phenyl,'}, {'sub': 6', '12', '1', '12', '7', '18', '1', '6', '7', '12, 'sup': 5', '5, 'C-Caryl, which is substituted by at least one radical OR, in which Ris H, C-Calkyl, C-Caralkyl, phenyl, naphthyl or fluorenyl and preferably is H, C-Calkyl, C-Caralkyl or phenyl, or'}, {'sup': 6', '6, 'sub': 1', '18', '7', '24', '1', '6', '7', '12, 'NH—C(═O)—OR, in which Ris H, C-Calkyl, C-Caralkyl, phenyl, naphthyl or fluorenyl and preferably is H, C-Calkyl, C-Caralkyl or phenyl, and'}], 'X is OR, in which Ris H, C-Calkyl, C-Caralkyl, phenyl, naphthyl or fluorenyl and preferably is H, C-Calkyl ...

Catalysts based on Amino-Sulfide Ligands for Hydrogenation and Dehydrogenation Processes

The present application discloses novel amino-sulfide metal catalysts for organic chemical syntheses including hydrogenation (reduction) of unsaturated compounds or dehydrogenation of substrates. The range of hydrogenation substrate compounds includes esters, lactones, oils and fats, resulting in alcohols, diols, and triols as reaction products. The catalysts of current application can be used to catalyze a hydrogenation reaction under solvent free conditions. The present catalysts also allow the hydrogenation to proceed without added base, and it can be used in place of the conventional reduction methods employing hydrides of the main-group elements. Furthermore, the catalysts of the present application can catalyze a dehydrogenation reaction under homogenous and/or acceptorless conditions. As such, the catalysts provided herein can be useful in substantially reducing cost and improving the environmental profile of manufacturing processes for a variety of chemicals.

TITANIUM (IV) COMPOUNDS AND METHODS OF FORMING HETEROCYCLIC COMPOUNDS USING SAME

The present disclosure provides Titanium (IV) compounds and methods of making heterocyclic compounds such as pyrroles using Titanium (IV) compounds. In certain embodiments, the Titanium (IV) compound is present in catalytic amounts. 2. The compound of wherein each Rindependently represents an alkyl group or an aryl group; each X independently represents an inorganic anionic ligand; and each L independently represents a neutral organic coordinating ligand.3. A method of forming a heterocyclic compound comprising:combining at least one compound having a triple bond, at least one azo compound, and at least one Ti(IV) compound under conditions effective for a [2+2+1] cycloaddition reaction to occur and form one or more heterocyclic compounds.5. The method of wherein each Rindependently represents an alkyl group or an aryl group; each X independently represents an inorganic anionic ligand; and each L independently represents a neutral organic coordinating ligand.6. The method of wherein the at least one azo compound is of the formula R—N═N—R claim 4 , wherein each Rindependently represents an organic group.7. The method of wherein each Rindependently represents an alkyl group or an aryl group.8. The method of wherein the at least one compound having a triple bond is at least one alkyne claim 4 , and the one or more heterocyclic compounds formed include one or more pyrroles.10. The method of wherein each Rindependently represents an alkyl group or an aryl group; and each Rand Rindependently represents hydrogen claim 9 , an alkyl group claim 9 , or an aryl group.12. The method of wherein each Rindependently represents an alkyl group or an aryl group; and each Rand Rindependently represents hydrogen claim 11 , an alkyl group claim 11 , or an aryl group.13. The method of wherein the at least one compound having a triple bond is at least one nitrile-functional compound claim 4 , and the one or more heterocyclic compounds formed include one or more triazoles.15. The method of ...

Hydrosilylation reaction catalyst

A hydrosilylation reaction catalyst prepared from: a prescribed transition metal compound such as iron pivalate, cobalt pivalate, iron acetate, cobalt acetate, or nickel acetate; a ligand comprising t-butylisocyanide or another isocyanide compound; and a borane compound, Grignard reagent, alkoxysilane, or other prescribed promoter makes it possible to promote a hydrosilylation reaction under moderate conditions, and has exceptional handling properties and storage stability.

Molybdenum and tungsten metal complexes and use thereof as precatalysts for olefin metathesis

The invention relates to metal complexes of general formula (I) and to a method for the production thereof, in which M, R 1 , R 2 , R 3 , X and Y in addition to R a , R b , R c , R d , R e , R f , R g , R h can have the meanings defined in the claims. Said metal complexes form air-stable compounds and are suitable as pre-catalysts in the olefin metathesis.

A device, process, and catalyst intended for desulfurization and demercaptanization of gaseous hydrocarbonsd

This application is in the field of technologies for desulfurization and demercaptanization of gaseous hydrocarbons. The device includes a catalytic reactor loaded with a catalyst solution in an organic solvent, a means of withdrawal sulfur solution from the reactor into the sulfur-separating unit, and a sulfur-separating unit. The said device has at least means of supplying gaseous hydrocarbon medium to be purified and oxygen-containing gas into the reactor, and a means of outletting the purified gas from the reactor. The sulfur-separation unit includes a means of sulfur extraction. The reactor design and the catalyst composition provide conversion of at least 99.99% of hydrogen sulfide and mercaptans into sulfur and disulfides. The catalyst is composed of mixed-ligand complexes of transition metals. The technical result achieved by use of claimed invention is single-stage purification of gaseous hydrocarbons from hydrogen sulfide and mercaptans with remaining concentration of —SH down up to 0.001 ppm.

IGM COMPOSITIONS AND METHODS OF MUCOSAL DELIVERY OF THESE COMPOSITIONS

The method relates to the field of asymmetric allylic amination and comprises preparing a chiral N-substituted allylic amine compound from the corresponding allylic substrates and substituted hydroxylamines, in the presence of a catalyst, said catalyst comprising copper compounds and a chiral ligand. Examples of chiral amine compounds which can be made using the method include Vigabatrin, Ezetimibe Terbinafme, Naftifme 3-methylmorphine, Sertraline, Cinacalcet, Mefloquine hydrochloride, and Rivastigmine. There are over 20,000 known bioactive molecules with chiral N-substituted allylic amine substructure. The method may also be used to produce non-natural chiral B-aminoacid esters, a sub-class of chiral N-substituted allylic amine compounds. Examples of B-aminoacid ester which can be produced by the disclosed method, include, but are not limited to, N-(2-methylpent-1-en-3-yl)benzenamine and Ethyl 2-methylene-3-(phenylamino)butanoate. Further, the products of the method described herein can be used to produce chiral heterocycles and bioactive molecules or materials. 1. A method of producing a chiral N-substituted allylic amine compound comprising:(i) mixing an olefin compound, said olefin compound comprising an allylic C—H group, with an aminating reagent, said aminating reagent comprising a substituted hydroxylamine; and(ii) adding a chiral ligand and a copper (Cu(I)) compound to the mixture.2. The method of claim 1 , wherein said olefin compound comprises the general structure R—C(C—HR)═CHR.3. The method of claim 1 , wherein said olefin compound is selected from the group consisting of: 2-Methyl-2-butene claim 1 , 2-Methyl-2-pentene claim 1 , 2-Methyl-2-heptene claim 1 , 2 claim 1 ,5-Dimethyl-2-hexene claim 1 , Ethyltiglate claim 1 , sec-Betyltiglate claim 1 , Benzyltiglate claim 1 , methy-2-methyl-2-pentenoate claim 1 , 2-methyl-2-butenal claim 1 , 2-methyl-2-pentenal claim 1 , and 3-methyl-3-penten-2-one.4. The method of claim 1 , wherein said aminating reagent ...

CYCLOPROPANATION METHOD

A cyclopropanation method includes reacting an alcohol, an ester, or an aldehyde with a sulfone in an organic solvent containing a base providing a counter cation to form a cyclopropane; and isolating the cyclopropane. When using the alcohol or ester, the organic solvent further contains a catalyst having an alcohol dehydrogenation activity. 1. A cyclopropanation method , comprising:reacting an alcohol, an ester, or an aldehyde with a sulfone in an organic solvent containing a base providing a counter cation to form a cyclopropane; and,isolating the cyclopropane;wherein, the organic solvent further contains a catalyst having an alcohol dehydrogenation activity when the alcohol or the ester is reacted.2. The cyclopropanation method according to ;wherein, the alcohol is reacted;{'sup': 1', '1, 'sub': '2', 'the alcohol is RCHOH, in which Ris hydrogen, alkyl, or cycloalkyl, and the alkyl is optionally intervened by oxygen, sulfur, or nitrogen;'}{'sup': '1', 'Ris saturated or unsaturated, provided that a double bond does not exist between a β carbon and a γ carbon of the alcohol;'}{'sup': '1', 'Ris unsubstituted or substituted with at least one substituent selected from the group consisting of alkyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl, provided that the β carbon of the alcohol is unsubstituted; and,'}the substituent is further substituted or unsubstituted.4. The cyclopropanation method according to claim 1 ,wherein, the ester is reacted,{'sup': 1', '2, 'sub': '2', 'the ester is formed from RCHOH and RCOOH;'}{'sup': '1', 'Ris hydrogen, alkyl, or cycloalkyl, and the alkyl is optionally intervened by oxygen, sulfur, or nitrogen,'}{'sup': '1', 'Ris saturated or unsaturated, provided that a double bond does not exist between a β carbon and a γ carbon of the alcohol,'}{'sup': '1', 'Ris unsubstituted or substituted with at least one substituent selected from the group consisting of alkyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl, provided that the β ...

CHIRAL N-SUBSTITUTED ALLYLIC AMINE COMPOUNDS

The method relates to the field of asymmetric allylic amination and comprises preparing a chiral N-substituted allylic amine compound from the corresponding allylic substrates and substituted hydroxylamines, in the presence of a catalyst, said catalyst comprising copper compounds and a chiral ligand. Examples of chiral amine compounds which can be made using the method include Vigabatrin, Ezetimibe Terbinafine, Naftifine 3-methylmorphine, Sertraline, Cinacalcet, Mefloquine hydrochloride, and Rivastigmine. There are over 20,000 known bioactive molecules with chiral N-substituted allylic amine substructure. The method may also be used to produce non-natural chiral β-aminoacid esters, a sub-class of chiral N-substituted allylic amine compounds. Examples of β-aminoacid ester which can be produced by the disclosed method, include, but are not limited to, N-(2-methylpent-1-en-3-yl)benzenamine and Ethyl 2-methylene-3-(phenylamino)butanoate. Further, the products of the method described herein can be used to produce chiral heterocycles and bioactive molecules or materials. A novel chiral copper-BINAM nitrosoarene complex is also set forth. 1. The isolated chemical compound synthesized from the process of combining copper (II) salt [Cu(X)2] , and chiral nitrogen donor ligand in the presence of toluene.2. The isolated chemical compound of wherein the process comprises the steps of reacting Cu(X)2 claim 2 , Chiral nitrogen donor ligand claim 2 , followed by recrystallization to produce the desired chemical compound.3. The isolated chemical compound of wherein the recrystallization process comprises the steps of removal of solvent and re-dissolving the product in a particular solvent system to obtain crystals. This application is a divisional (“DIV”) of U.S. Nonprovisional Patent Application No. 16/211,806 filed on Dec. 6, 2018, which is a divisional (“DIV”) of U.S. Non-Provisional patent application Ser. No. 15/469,654 filed on Mar. 27, 2017, which itself is a CIP claiming ...

Process for the racemization of alpha-amino acids

According to the present invention, a method is provided wherein a basic aqueous phase containing an optically active α-amino acid is brought into contact with an organic phase containing a racemisation catalyst in the form of a copper metal complex of copper ions and an α-amino acid and salicylaldehyde, in the presence of a phase transition catalyst, thereby subjecting the optically active α-amino acid to racemisation. In the α-amino acid racemisation method according to the present invention, the reaction conditions are mild and thus there is little α-amino acid breakdown and the yield is high, the racemisation catalyst can be reused, the α-amino acid resulting from the racemisation can easily be isolated and purified, and the racemisation method can be implemented in volume such that the invention is economic.

METHOD FOR PRODUCING METAL CARBONATE AND CATALYST FOR PRODUCING THE SAME

A method for producing metal carbonate is disclosed. The method includes the following steps of providing a first mixture of metal and a catalyst containing iron, NO groups, and N-containing ligands first; then introducing carbon dioxide to the first mixture to form a second mixture and obtaining a product. The method described here can improve the yield and decrease the cost of metal carbonate production. 2. The method of claim 1 , further comprising step (C) drying or filtering the second mixture to collect the product of step (B).3. The method of claim 1 , wherein the metal is Na claim 1 , Mg claim 1 , Zn claim 1 , Fe claim 1 , or the combination thereof.4. The method of claim 1 , wherein the step (B) is performed at room temperature.5. The method of claim 1 , wherein Rand Rare the same.6. The method of claim 1 , wherein Rand Rare the same.7. The method of claim 1 , wherein Rand Rare the same.8. The method of claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , and Rare hydrogen claim 1 , or methyl.9. The method of claim 1 , wherein L is 1 claim 1 ,1 claim 1 ,4 claim 1 ,7 claim 1 ,10 claim 1 ,10-hexamethyltriethylenetetramine10. The method of claim 1 , wherein L is triethylenetetramine11. The method of claim 1 , wherein the solution of a catalyst in step (A) is an aqueous solution claim 1 , or organic solution.13. The compound of claim 12 , wherein Rand Rare the same.14. The compound of claim 12 , wherein Rand Rare the same.15. The compound of claim 12 , wherein Rand Rare the same.16. The compound of claim 12 , wherein R claim 12 , R claim 12 , R claim 12 , R claim 12 , R claim 12 , and Rare hydrogen claim 12 , or methyl.17. The compound of claim 12 , wherein L is 1 claim 12 ,1 claim 12 ,4 claim 12 ,7 claim 12 ,10 claim 12 ,10-hexamethyltriethylenetetramine18. The compound of claim 12 , wherein L is triethylenetetramine.19. The compound of claim 12 , which is used for catalyzing the reaction for producing metal carbonate.20. The compound ...

Oligomeric and polymeric species comprising cyclobutane units

In one aspect, oligomeric and polymeric species are described herein exhibiting new architectures and associated properties. In some embodiments, such species are synthesized by oligomerization or polymerization of diene monomer via cycloaddition in the presence of a transition metal complex. Oligomers described herein, for example, comprise cyclobutane units in the oligomer backbone. Similarly, a polymers described herein comprise cyclobutane units in the polymer backbone.

Low Molecular Weight Sterically Encumbered Oligomers

Low molecular weight, high Tg resins, with applications including tire additives and adhesives. An oligomer is obtained by ring opening metathesis polymerization (ROMP) of a sterically encumbered cyclic monomer with an olefinic chain transfer agent. The sterically encumbered cyclic monomer and the olefinic chain transfer agent are present in the polymerization at a molar ratio of from 2:1 to about 40:1. Also, methods for making the oligomer by ROMP.

Catalyst compositions and their use for hydrogenation of nitrile rubber

Catalyst compositions based on Ruthenium- or Osmium-based complex catalysts and specific co-catalysts are provided for selectively hydrogenating nitrile rubbers in the presence of such catalyst compositions.

Selective hydrogenation catalyst, preparation method and application thereof

The present invention discloses a selective hydrogenation catalyst and a preparation method and an application thereof, belonging to the technical field of catalysts. The selective hydrogenation catalyst comprises an active component and a carrier for supporting the active component, wherein the active component is a transition metal particle, the carrier is modified by a flexible chain ligand in advance, one end of the flexible chain ligand is uniformly distributed on the surface of the carrier, and the other end of the flexible chain ligand is coordinated on a transition metal. When the catalyst is used for catalytic hydrogenation reaction of dehydrolinalool or 2-methyl-3-butyn-2-ol, the stability is good, the catalyst still has high selectivity after being used for a long time, and the quality of a hydrogenation product can be guaranteed.

Hydrosilylation reaction catalyst

A hydrosilylation reaction catalyst prepared from: a catalyst precursor comprising a transition metal compound, excluding platinum, belonging to group 8-10 of the periodic table, e.g., iron acetate, cobalt acetate, nickel acetate, etc.; and a ligand comprising an isocyanide compound such as t-butyl isocyanide. The hydrosilylation reaction catalyst has excellent handling and storage properties. As a result of using this catalyst, a hydrosilylation reaction can be promoted under gentle conditions.

Olefin oligomerization catalyst and method for producing olefin oligomer in the presence of the same catalyst

A method for producing an olefin oligomer is disclosed, in which an olefin oligomerization reaction is performed in the presence of an olefin oligomerization catalyst comprising (A) a chromium compound, (B) an amine compound of the general formula (1): (R 1 to R 4 represent a group such as a hydrocarbon group, Y represents a structure represented by —CR 5 R 6 —, R 5 and R 6 represent a group such as a hydrogen atom, and Z represents an integer of 1 to 10), and (C) a compound such as an organometal compound; and the olefin oligomerization catalyst.

METHOD FOR PREPARING BETA-LACTAM DERIVATIVE

The present invention relates to a method for preparing a β-lactam derivative, wherein a substituted N-quinoline-3-butenamide derivative is used as a substrate to react with a toluene derivative or a heterocyclic derivative at 90-150° C. in the presence of DTBP and a copper salt catalyst, to prepare a β-lactam derivative. According to the method of the present invention, a variety of β-lactam derivatives can be obtained with a high yield. The reaction of the present invention has mild reaction conditions, and simple reaction operation and post-treatment process, and is suitable for large-scale production. 2. The method according to claim 1 , wherein the copper salt catalyst is selected from the group consisting of cuprous bromide claim 1 , copper acetate claim 1 , cuprous chloride claim 1 , tetrakis(acetonitrile)copper hexafluorophosphate claim 1 , copper trifluoromethanesulfonate claim 1 , copper oxide claim 1 , copper bromide and any combination thereof.3. The method according to claim 1 , wherein the molar ratio of the substituted N-quinoline-3-butenamide derivative: di-tert-butyl peroxide:copper salt catalyst=1:1-3:0.05-0.2.4. The method according to claim 1 , wherein the copper salt catalyst is tetrakis(acetonitrile)copper hexafluorophosphate.5. The method according to claim 1 , wherein the molar ratio of the substituted N-quinoline-3-butenamide derivative: di-tert-butyl peroxide:copper salt catalyst=1:3:0.05-0.2.6. The method according to claim 1 , wherein the reaction temperature is 130 to 150° C.7. The method according to claim 1 , wherein the reaction system also comprises claim 1 , in addition to the toluene derivative of Formula (2) or the heterocyclic derivative of Formula (3) claim 1 , an additional organic solvent.8. The method according to claim 7 , wherein the organic solvent is selected from the group consisting of acetonitrile claim 7 , tetrahydrofuran claim 7 , N claim 7 ,N-dimethylformamide claim 7 , isopropanol and any combination thereof. The ...

Process for the preparation of acrylate esters from alkyl lactates

Catalytic hydroesterification of alkyl lactates give alkyl 2-(propionyloxy)propanoates, starting from alkyl lactate, carbon monoxide, ethylene gas, and a palladium catalyst. Pyrolysis of alkyl 2-(propionyloxy)propanoates gives acrylate esters.

METATHESIS CATALYSTS

This invention relates generally to olefin metathesis catalysts, to the preparation of such compounds, compositions comprising such compounds, methods of using such compounds, and the use of such compounds in the metathesis of olefins and in the synthesis of related olefin metathesis catalysts. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and in industrial applications such as oil and gas, fine chemicals and pharmaceuticals. 117.-. (canceled)19. The olefin metathesis catalyst according to claim 18 , wherein:M is Ru;n is 0;m is 0;{'sup': '1', 'Ris hydrogen;'}{'sup': 2', '1', '2, 'Ris unsubstituted hydrocarbyl, substituted hydrocarbyl, unsubstituted heteroatom-containing hydrocarbyl, or substituted heteroatom-containing hydrocarbyl; or Rand Rare linked together to form an optionally substituted indenylidene;'}R is unsubstituted hydrocarbyl, substituted hydrocarbyl, unsubstituted heteroatom-containing hydrocarbyl, or substituted heteroatom-containing hydrocarbyl;{'sup': 1', '2, 'Xand Xare independently halogen;'}{'sup': 11', '12', '13', '14, 'sub': s', 't, 'Q is a two-atom linkage having the structure —[CRR]—[CRR]—;'}{'sup': 11', '12', '13', '14, 'R, R, R, and R, are independently hydrogen;'}“s” and “t” are independently 1; and{'sup': 3', '4, 'sub': 5', '24', '5', '24', '1', '20', '1', '20', '1', '20', '1', '20', '5', '24', '5', '24', '5', '24', '5', '24', '6', '24', '6', '24', '6', '24', '6', '24, 'Rand Rare independently unsubstituted C-Caryl or C-Caryl substituted with up to three substituents selected from C-Calkyl, substituted C-Calkyl, C-Cheteroalkyl, substituted C-Cheteroalkyl, C-Caryl, substituted C-Caryl, C-Cheteroaryl, substituted C-Cheteroaryl, C-Caralkyl, substituted C-Caralkyl, C-Calkaryl, substituted C-Calkaryl and halide.'}21. The olefin metathesis catalyst according to claim 20 , wherein:{'sup': '2', 'Ris unsubstituted phenyl, substituted phenyl or substituted 1-propenyl;'}{'sub': 1', '10', '1', '10', '3', ...

Nanocage-confined catalyst, preparation process and use thereof

A nanocage-confined catalyst has the formula: NC-m[M(Salen1)X]-n[M′(Salen2)]. NC is a material having a nanocage structure, and M(Salen1)X and M′ (Salen2) are active centers, respectively; each occurrence of M is independently selected from the group consisting of Co ion, Fe ion, Ga ion, Al ion, Cr ion, and a mixture thereof. Each occurrence of M′ is independently selected from Cu ion, Ni ion and a mixture thereof, m is 0 to 100; n is 0 to 100, with the proviso that at least one of m and n is not 0; each occurrence of Salen1 and Salen2 is independently a derivative of Shiff bases; X is an axial anion selected from the group consisting of substituted or unsubstituted acetate, substituted or unsubstituted benzene sulfonate, substituted or unsubstituted benzoate, F—, Cl—, Br—, I—, SbF6-, PF6-, BF4-, and a mixture thereof. 1. A nanocage-confined catalyst , characterized in that the catalyst has an active center of formula (I-1) and/or (I-2):{'br': None, 'M(Salen1)X\u2003\u2003(I-1)'}{'br': None, 'M′(Salen2)\u2003\u2003(I-2)'} {'br': None, 'NC-m[M(Salen1)X]-n[M′(Salen2)]\u2003\u2003(I)'}, 'such that the catalyst has formula (I)wherein:NC is a material having a nanocage structure,each occurrence of M is independently selected from the group consisting of Co ion, Fe ion, Ga ion, Al ion, Cr ion, and a mixture thereof; and each occurrence of M′ is independently selected from Cu ion, Ni ion and a mixture thereof;m is an integer of 0 to 100, n is an integer of 0 to 100; provided that at least one of m and n is not 0;each occurrence of Salen1 and Salen2 is independently a derivative of a Shiff base;{'sup': −', '−', '−', '−', '−', '−', '−, 'sub': 6', '6', '4, 'X is an axial anion, wherein each occurrence of X is independently selected from the group consisting of substituted or unsubstituted acetate, substituted or unsubstituted benzenesulfonate, substituted or unsubstituted benzoate, F, Cl, Br, I, SbF, PF, BF and a mixture thereof; provided that(1) when X is a substituted or ...

Highly active multidentate catalysts for efficient alkyne metathesis

The invention relates to highly active and selective catalysts for alkyne metathesis. In one aspect, the invention includes a multidentate organic ligand wherein one substrate-binding site of the metal center is blocked. In another aspect, the invention includes N-quaternized or silane-based multidentate organic ligands, capable of binding to metals. In yet another aspect, the invention includes N-quaternized or silane-based multidentate catalysts. The catalysts of the invention show high robustness, strong resistance to small alkyne polymerization and significantly enhanced catalytic activity compared to their corresponding non-quaternized or non-silane-based multidentate catalyst analogues.

PROCESS FOR HYDROGENATING KETONES IN THE PRESENCE OF RU(II) CATALYSTS

The present invention relates to a process for hydrogenating a substrate including a carbon-heteroatom double bond, the process including the step of reacting the substrate with hydrogen gas in the presence of a hydrogenation catalyst, wherein the hydrogenation catalyst is a complex of formula (I): 117-. (canceled)21. The complex according to claim 20 , wherein R claim 20 , R claim 20 , R claim 20 , Rand Rare each independently selected from the group consisting of hydrogen claim 20 , straight-chain Calkyl and branched-chain Calkyl.22. The complex according to claim 21 , wherein R claim 21 , R claim 21 , R claim 21 , Rand Rare each independently selected from the group consisting of hydrogen claim 21 , methyl claim 21 , ethyl claim 21 , n-propyl claim 21 , propyl claim 21 , n-butyl claim 21 , i-butyl claim 21 , s-butyl and t-butyl.23. The complex according to claim 22 , wherein R claim 22 , R claim 22 , R claim 22 , Rand R claim 22 , are each hydrogen.24. The complex according to claim 20 , wherein R claim 20 , R claim 20 , Rand Rare each independently selected from the group consisting of hydrogen and optionally substituted C claim 20 , aryl.2539. The complex according to claim claim 20 , wherein R claim 20 , R claim 20 , Rand Rare each independently selected from the groupconsisting of hydrogen and phenyl.2640. The complex according to claim claim 20 , wherein one of Rand Ris phenyl and the other of Rand Ris hydrogen.2740. The complex according to claim claim 20 , wherein one of Rand Ris phenyl and the other of Rand Ris hydrogen.2840. The complex according to claim claim 20 , wherein R claim 20 , R claim 20 , Rand Rare hydrogen.2935. The complex according to claim claim 20 , wherein R is an optionally substituted straight claim 20 , branched or cyclic Calkyl claim 20 , an optionally substituted Caryl wherein the substituents are selected from the group consisting of one or more straight claim 20 , branched or cyclic Calkyl claim 20 , straight claim 20 , branched ...

IRON AND COBALT CATALYZED HYDROGEN ISOTOPE LABELING OF ORGANIC COMPOUNDS

Methods of isotopic labeling are described herein. For example, a method of isotopically labeling an organic compound, in some embodiments, comprises providing a reaction mixture including the organic compound, an iron complex or a cobalt complex and a source of deuterium or tritium. The organic compound is labeled with deuterium or tritium in the presence of the iron complex or cobalt complex or derivative of the iron complex or cobalt complex.

PROCESS AND CATALYSTS FOR THE OXIDATION AND/OR AMMOXIDATION OF OLEFIN

Embodiments of the present disclosure describe a catalyst and/or a precatalyst, in particular a single site catalyst and/or a single site precatalyst, for the oxidation and/or ammoxidation of olefins to produce aldehydes and/or nitriles, methods of preparing a corresponding catalyst and/or precatalyst, in particular single site catalyst and/or single site precatalyst, and methods of using said catalyst and/or precatalyst, in particular said single site catalyst and/or single site precatalyst, to produce aldehydes and/or nitriles. 1. A catalyst , comprising:a support including one or more of inorganic oxide, silicon-modified inorganic oxide, and bismuth-modified inorganic oxide; and an inorganic and/or organometallic complex grafted on the support; wherein the complex includes one or more of Group V elements, Group VI elements, and Group VII elements.2. The catalyst of claim 1 , wherein the support includes one or more of silica claim 1 , bismuth oxide claim 1 , bismuth-modified silica claim 1 , and silicon-modified bismuth oxide.3. The catalyst of claim 1 , wherein the complex includes one or more of Mo claim 1 , W claim 1 , Cr claim 1 , and Re.4. The catalyst of claim 1 , wherein an active metal content of the catalyst is less than about 20 wt %.5. The catalyst of claim 1 , wherein the catalyst is a single-site catalyst.13. A method of making one or more of aldehydes and nitriles claim 1 , comprising:contacting an olefin and one or more of oxygen and ammonia in a presence of a catalyst to produce one or more of aldehydes and nitriles; wherein the catalyst is a single-site catalyst including an inorganic and/or organometallic complex grafted on a support.14. The method of claim 13 , wherein the contacting proceeds at a temperature ranging from about 350° C. to about 450° C.15. The method of claim 13 , wherein the olefin includes one or more of a terminal olefin and internal olefin.16. The method of claim 13 , wherein the olefin includes hydrocarbons with 2 to 5 ...

POLYCARBONATE BASED POLYOLS

A method of manufacturing a poly(ether-carbonate) polyol comprises a polymerization stage that includes polymerizing carbon dioxide and at least one alkylene oxide, with a starter, in the presence of a double metal cyanide polymerization catalyst and a catalyst promoter that is devoid of halide anions and cyanide. The catalyst promoter is separate from the double metal cyanide polymerization catalyst. 18-. (canceled)9. A method of manufacturing a poly(ether-carbonate) polyol , comprising:a polymerization stage that includes polymerizing carbon dioxide and at least one alkylene oxide, with a starter, in the presence of a double metal cyanide polymerization catalyst and a catalyst promoter that is devoid of halide anions and cyanide, the catalyst promoter being separate from the double metal cyanide polymerization catalyst, wherein the catalyst promoter is selected from the group consisting of:magnesium alkyls; magnesium alkoxides; magnesium aryloxides; magnesium amides; magnesium acetylacetonate; magnesium t butylacetylacetonate; scandium alkoxides; scandium aryloxides; scandium acetylacetonate; scandium t-butylacetylacetonate; yttrium alkoxides; yttrium aryloxides; yttrium amides; yttrium acetylacetonate; yttrium t-butylacetylacetonate; hafnium alkyls; hafnium alkoxides; hafnium aryloxides; hafnium amides; hafnium acetylacetonate; hafnium t-butylacetylacetonate; titanium alkyls; titanium aryloxides; titanium amides; titanium acetylacetonate; titanium t-butylacetylacetonate; zirconium alkyls; zirconium alkoxides; zirconium aryloxides; zirconium amides; zirconium acetylacetonate; zirconium t-butylacetylacetonate; vanadium alkoxides; vanadium oxo tris(alkoxides); vanadium aryloxides; vanadium tris(acetylacetonate); vanadium tris(t-butylacetylacetonate); vanadium oxo bis(acetylacetonate); zinc alkyls; alkyl zinc alkoxides; zinc alkoxides; zinc aryloxides; zinc amides; zinc acetylacetonate; zinc t-butylacetylacetonate; trialkyl gallium compounds; gallium alkoxides; ...

Complexes and methods for their preparation

Disclosed are methods for the preparation of ligands for complexes, methods for preparing complexes and complexes having those ligands. Also provided is the use of a complex as a catalyst in a method of synthesis.

Process for the Oligomerisation of Olefins by Coordinative Chain Transfer Polymerisation

The present invention relates to a process for the oligomerisation of olefins, in particular ethylene, via coordinative chain transfer polymerisation (CCTP) and alkyl elimation reaction. A preferred embodiment of the invention relates to CCTP of olefins, in particular ethylene, with the use of guanidinato, amidinato or hydrocarbyl-2-pyridyl amine complexes of titanium, zirconium or lanthanides, a nickel or cobalt compound as chain displacement catalyst (CDC) and one or more chain shuttling agents (CSA) such as a main group metal alkyl. 2. The process according to claim 1 , wherein the growth composition further comprises an activator for the coordinative chain transfer polymerization catalyst (CCTP catalyst) being an aluminium or boron containing compound comprising at least one hydrocarbyl group.3. The process according to claim 1 , wherein the olefin is one or more member selected from the group consisting of ethylene claim 1 , propylene claim 1 , 1-butene claim 1 , 1-pentene and 1-hexene.4. The process according to claim 1 , wherein the one or more organo metallic transition metal compounds comprises one or two transition metals.5. The process according to claim 1 , wherein one or two ligands are selected from cyclopentadienyl claim 1 , indenyl claim 1 , fluorine claim 1 , diamide ligands claim 1 , phenoxy-imine-ligand claim 1 , indolide-imine-ligands claim 1 , amidinate claim 1 , guanidinate claim 1 , amidopyridine claim 1 , pyrrdinimine and alcoholate each optionally substituted.6. The process according to claim 1 , wherein for process i) the CCTP catalyst is deactivated during or after the oligomerisation by heating the growth composition or by bringing the CCTP catalyst in contact with a catalyst poison.7. The process according to wherein the chain shuttling agent (CSA) is a C1 to C30 hydrocarbyl metal compound claim 1 , methyl-alumoxane or both claim 1 , the metal being aluminium claim 1 , zinc claim 1 , magnesium claim 1 , indium or gallium.8. The process ...

Ligand compound, organic chromium compound, catalyst system for ethylene oligomerization, preparation method thereof, and ethylene oligomerization method using the same

The present invention relates to a ligand compound, an organic chromium compound, a catalyst system for ethylene oligomerization, a preparation method thereof, and an ethylene oligomerization method using the same. The catalyst system for ethylene oligomerization according to the present invention is used to prepare a low-density polyethylene in one reactor by using a small amount of comonomers such as alpha-olefin or by using only ethylene without comonomers, because it maintains high catalytic activity and high alpha-olefin selectivity even though supported on a support.

Process For Hydrogenating Ketones In The Presence Of RU(II) Catalysts

The present invention relates to a process for hydrogenating a substrate including a carbon-heteroatom double bond, the process including the step of reacting the substrate with hydrogen gas in the presence of a hydrogenation catalyst, wherein the hydrogenation catalyst is a complex of formula (I): 2. The complex according to claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , Rand Rare each independently hydrogen claim 1 , straight-chain Calkyl or branched-chain Calkyl.3. The complex according to claim 2 , wherein R claim 2 , R claim 2 , R claim 2 , Rand Rare each independently hydrogen claim 2 , methyl claim 2 , ethyl claim 2 , n-propyl claim 2 , propyl claim 2 , n-butyl claim 2 , i-butyl claim 2 , s-butyl or t-butyl.4. The complex according to claim 3 , wherein R claim 3 , R claim 3 , R claim 3 , Rand Rare each hydrogen.5. The complex according to claim 1 , wherein R claim 1 , R claim 1 , Rand Rare each independently hydrogen or optionally substituted Caryl.6. The complex according to claim 5 , wherein R claim 5 , R claim 5 , Rand Rare each independently hydrogen or phenyl.7. The complex according to claim 5 , wherein one of Rand Ris phenyl and the other of Rand Ris hydrogen.8. The complex according to claim 5 , wherein one of Rand Ris phenyl and the other of Rand Ris hydrogen.9. The complex according to claim 5 , wherein R claim 5 , R claim 5 , Rand Rare hydrogen.10. The complex according to claim 5 , wherein Ris a straight- or branched-chain Calkyl or substituted with one or more straight- or branched-chain Calkyl.11. The complex according to claim 1 , wherein Ris an optionally substituted straight claim 1 , branched or cyclic Calkyl or an optionally substituted Caryl claim 1 , wherein the substituents are one or more straight claim 1 , branched or cyclic Calkyl claim 1 , straight claim 1 , branched or cyclic Calkoxy claim 1 , Caryl claim 1 , Caryloxy claim 1 , -Hal claim 1 , or —CF.12. The complex according to claim 1 , wherein Ris a 3 claim 1 ,5- ...

CATALYST COMPOSITIONS AND THEIR USE FOR HYDROGENATION OF NITRILE RUBBER

This invention relates to novel catalyst compositions based on Ruthenium- or Osmium-based complex catalysts of the Grubbs-Hoveyda, Grela or Zhan type and specific co-catalysts comprising at least one vinyl group, pref. ethyl vinyl ether, and to a process for selectively hydrogenating nitrile rubbers in the presence of such catalyst compositions, preferably with a preceding metathesis step using the same complex catalyst as in the hydrogenation step. 2. The selective hydrogenation according to claim 1 , wherein the complex catalyst is contacted with one co-catalyst of the general formula (1) in which R is hydrogen and R′ shall mean claim 1 ,{'sup': 1', '1', '2', '2', '2', '3', '4, 'sub': 1', '16', '3', '10', '2', '16', '2', '20', '6', '24', '6', '24', '2', '2', 'n', 'm', '2', 'n', 'm', '2', '2', 'p', '2, 'claim-text': [{'sup': '2', 'X is identical or different end is oxygen (O) or NR,'}, {'sup': '2', 'sub': 1', '16', '3', '10', '2', '16', '2', '20', '6', '24', '3', '20, 'Rare identical or different and represent H, C-C-alkyl, C-C-cycloalkyl, C-C-alkenyl, C-C-alkynyl, C-C-aryl, or C-C-heteroaryl,'}, {'sup': '3', 'sub': 1', '4', '2', 'n', '2, 'Rare identical or different and represent C-Calkyl or —(CH)—O—CH═CH,'}, {'sup': '4', 'sub': 2', 'p', '2, 'Rrepresents (CH)—O—CH═CH,'}, 'n is 1 to 4,', 'm is 1 to 5,', 'p is 0 to 5, or, 'wherein'}, 'ORwherein Rshall mean C-C-alkyl, C-C-cycloalkyl, C-C-alkenyl, C-C-alkynyl, C-C-aryl, C-C-heteroaryl, —C(═O)(R), —C(═O)N(R), —[(CH)X]R, —[(CH)X]—CH═CH, or —(CH)—C(R)R,'}{'sup': 5', '5', '5', '5, 'sub': 2', '1', '16', '3', '10', '2', '16', '2', '20', '6', '24', '6', '24, 'SR, SOR, SORwherein Rrepresents C-C-alkyl, C-C-cycloalkyl, C-C-alkenyl, C-C-alkynyl, C-C-aryl, or C-C-heteroaryl, or'}{'sup': 6', '7', '6', '7', '6', '7', '2', '6', '7', '8', '8', '8, 'sub': 1', '16', '3', '10', '2', '16', '2', '20', '6', '24', '6', '24', '1', '16', '3', '10', '2', '16', '2', '20', '6', '24', '6', '24, 'N(RR), P(RR) wherein Rand Rare identical or ...

PROCESS FOR THE PREPARATION OF DEUTERATED ETHANOL FROM D2O

The invention relates to a process for the preparation of a deuterated ethanol from ethanol, DO, a ruthenium catalyst, and a co-solvent. 2. The process of claim 1 , wherein the abundance of D in Rand Ris at least 80%.3. The process of claim 1 , wherein the abundance of D in R-Ris at most 50%.4. The process of claim 1 , wherein the abundance of D in Rand Ris at least 90% and the abundance of D in R-Ris at most 5%.6. The process of claim 5 , wherein the catalyst is of formula (III).7. The process of claim 5 , wherein the catalyst is of formula (III) and the reaction is performed in the presence of an alkali metal borohydride.8. The process of claim 7 , wherein the alkali metal borohydride is NaBH.9. The process of claim 8 , wherein the co-solvent is selected from tetrahydrofuran claim 8 , toluene claim 8 , 1 claim 8 ,4-dioxane claim 8 , diglyme and cyclopentyl methyl ether.10. The process of claim 5 , wherein the catalyst is of formula (III) and the reaction is performed in the presence of an alkali metal borohydride and in the absence of NaOH.11. The process of claim 10 , wherein the alkali metal borohydride is NaBH.12. The process of claim 11 , wherein the co-solvent is selected from tetrahydrofuran claim 11 , toluene claim 11 , 1 claim 11 ,4-dioxane claim 11 , diglyme and cyclopentyl methyl ether.13. The process of claim 5 , wherein the catalyst is of formula (IV).14. The process of claim 13 , wherein the co-solvent is selected from tetrahydrofuran claim 13 , toluene claim 13 , 1 claim 13 ,4-dioxane claim 13 , diglyme and cyclopentyl methyl ether.15. The process of claim 5 , wherein the catalyst is of formula (IV) and the reaction is performed in the absence of a base.16. The process of claim 15 , wherein the co-solvent is selected from tetrahydrofuran claim 15 , toluene claim 15 , 1 claim 15 ,4-dioxane claim 15 , diglyme and cyclopentyl methyl ether.17. The process of claim 1 , wherein the reacting step comprises claim 1 ,{'sub': '2', 'a) reacting a first portion ...

Recyclable metathesis catalysts

Highly active, recoverable and recyclable transition metal-based metathesis catalysts and their organometallic complexes including dendrimeric complexes are disclosed, including a Ru complex bearing a 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene and styrenyl ether ligand. The heterocyclic ligand significantly enhances the catalytic activity, and the styrenyl ether allows for the easy recovery of the Ru complex. Derivatized catalysts capable of being immobilized on substrate surfaces are also disclosed. The present catalysts can be used to catalyze ring-closing metathesis (RCM), ring-opening (ROM) and cross metatheses (CM) reactions, and promote the efficient formation of various trisubstituted olefins at ambient temperature in high yield.

SEMI-BATCH PROCESS FOR MAKING POLYCARBONATE POLYOLS VIA COPOLYMERIZATION OF CARBON DIOXIDE AND AN OXIRANE

Polycarbonate polyols are made by copolymerizing carbon dioxide and an alkylene oxide in the presence of a starter compound and a carbonate catalyst. The process is operated in semi-batch mode by combining starter, catalyst and a small amount of alkylene oxide in a reaction vessel, pressurizing the vessel with carbon dioxide, initiating polymerization, and then feeding both carbon dioxide and alkylene oxide to the vessel under polymerization conditions without removal of product until the feeds are completed. 1. A semi-batch process for making a polycarbonate polyol , comprising the steps of:a) combining a hydroxyl-containing starter compound, a carbonate catalyst and 0.25 to 5 moles of alkylene oxide per mole of the hydroxyl-containing starter compound in a reaction vessel;b) introducing carbon dioxide into the reaction vessel;c) initiating polymerization of the carbon dioxide and alkylene oxide by subjecting the hydroxyl-containing starter compound, carbonate catalyst, alkylene oxide and carbon dioxide in the reaction vessel to polymerization conditions that include a temperature of at least 40° C. and a pressure of at least 138 kPa gauge (20 psig);d) continuously or intermittently feeding additional alkylene oxide and carbon dioxide to the reaction vessel under polymerization conditions including a temperature of up to 150° C. without removal of product such that the alkylene oxide and carbon dioxide copolymerize to form the polycarbonate; ande) after all the alkylene oxide has been fed to the reaction vessel, recovering the product polycarbonate polyol from the reaction vessel.2. The semi-batch process of wherein step b) is performed by pressurizing the reaction vessel with carbon dioxide.3. The process of wherein in step d) claim 2 , the alkylene oxide and carbon dioxide are fed to the reaction vessel simultaneously claim 2 , and alkylene oxide is fed to the reaction vessel at a ratio of 0.005 to 1.0 moles of carbon dioxide per mole of alkylene oxide.4. The ...

Cationic Metal Complex, Organometal Catalyst Having Borate-Based Bulky Anion, Method for Preparing the Same, and Method for Preparing Oligomer or Polymer Using the Same

The present invention provides an organometal catalyst having a cationic metal complex and a borate-based bulky anion, where the metal is one or more selected from the group consisting of metals in group 13, a method for preparing the same, and a method for preparing an oligomer or a polymer using the same.

Article with antifouling properties, intended for aquatic uses and, in particular, for marine uses

The invention relates to an article with antifouling properties, intended for aquatic uses and, in particular, for marine uses, and to a method for slowing down the growth of aquatic organisms on submersible or semi-submersible structures.

HALOGEN-CONTAINING METATHESIS CATALYSTS AND METHODS THEREOF

The present disclosure provides compounds, compositions, and methods for preparing alkenyl halides and/or haloalkyl-substituted olefins with Z-selectivity. The methods are particularly useful for preparing alkenyl fluorides such as CF-substituted olefins by means of cross-metathesis reactions using halogen-containing molybdenum and tungsten complexes. 2. The compound of claim 1 , wherein Ris selected from Caliphatic claim 1 , 8-10 membered bicyclic or tricyclic saturated ring claim 1 , or aryl.3. The compound of claim 1 , wherein Ris adamantyl claim 1 , tert-butyl claim 1 , 2 claim 1 ,6-dimethlyphenyl claim 1 , 2 claim 1 ,6-di-t-butylphenyl claim 1 , 2 claim 1 ,6-diisopropylphenyl claim 1 , or pentafluorophenyl.4. The compound of claim 1 , wherein one of Rand Ris hydrogen and the other is C(CH) claim 1 , C(CH)CHor aryl.6. The compound of claim 1 , wherein Ris aryl.8. The compound of claim 1 , wherein Ris 2 claim 1 ,6-(2 claim 1 ,6-dimethylphenyl)CH claim 1 , 2 claim 1 ,6-(mesityl)CH claim 1 , 2 claim 1 ,6-(2 claim 1 ,6-diethylphenyl)CH claim 1 , 2 claim 1 ,6-(2 claim 1 ,4 claim 1 ,6-triethylphenyl)CH claim 1 , 2 claim 1 ,6-(2 claim 1 ,6-diisopropylphenyl)CH claim 1 , 2 claim 1 ,6-(2 claim 1 ,4 claim 1 ,6-triisopropylphenyl)CH claim 1 , 2 claim 1 ,6-(2 claim 1 ,6-di-t-butylphenyl)CH claim 1 , 2 claim 1 ,6-(2 claim 1 ,4 claim 1 ,6-tri-t-butylphenyl)CH claim 1 , 2 claim 1 ,6-(2 claim 1 ,6-diphenylphenyl)CH claim 1 , 2 claim 1 ,6-(2 claim 1 ,4 claim 1 ,6-triphenylphenyl)CH claim 1 , 2 claim 1 ,6-(3 claim 1 ,5-di-t-butylphenyl)CH claim 1 , 2 claim 1 ,6-(2 claim 1 ,6-dichlorphenyl)CH claim 1 , 2 claim 1 ,6-(2 claim 1 ,4 claim 1 ,6-trichlorphenyl)CH claim 1 , 2 claim 1 ,4 claim 1 ,6-(mesityl)CH claim 1 , 2 claim 1 ,3 claim 1 ,5 claim 1 ,6-(phenyl)CH claim 1 , or 2 claim 1 ,3 claim 1 ,4 claim 1 ,5 claim 1 ,6-(phenyl)C.9. The compound of claim 1 , wherein Ris —Cl or Br.10. The compound of claim 1 , wherein Ris selected from the group consisting of: an ether claim 1 , a ...

Process for forming a primary, a secondary or a tertiary amine via a direct amination reaction

The present invention concerns a process to obtain primary, secondary or tertiary amines, via a direct amination reaction of alcohols in presence of bis(perfluoroalkylsulfonimide) acid or salts thereof catalysts, and derivatives.

Compositions Comprising TPGS-750-M

In one embodiment, the present application discloses mixtures comprising (a) water in an amount of at least 1% wt/wt of the mixture; (b) a transition metal catalyst; and (c) one or more solubilizing agents; and methods for using such mixtures for performing transition metal mediated bond formation reactions. 114.-. (canceled)16. The compound of wherein n is an integer selected from 10 to 50.17. The compound of wherein n is an integer selected from 16 to 20.18. The compound of claim 15 , wherein n is 15.20. The mixture of claim 19 , where n is 15.21. The mixture of claim 19 , wherein the transition metal catalyst is selected from an organo-palladium or -nickel reagent claim 19 , organo-copper or -gold reagent claim 19 , organo-rhodium or -iridium complex claim 19 , or an organo-ruthenium claim 19 , -iron claim 19 , or -osmium reagent claim 19 , wherein the catalyst is capable of promoting cross-coupling reactions claim 19 , or other reactions characteristic of catalysis by these metals claim 19 , that form a carbon-carbon claim 19 , carbon-heteroatom or carbon-hydrogen bond.22. The mixture of claim 19 , wherein the transition metal catalyst comprises less than 5 mole % claim 19 , less than 3 mole % or less than 2 mole % of the mixture.23. The mixture of claim 19 , further comprising (i) a coupling substrate and (ii) a coupling partner.24. The mixture of claim 23 , wherein water is the sole solvent.25. The mixture of claim 24 , wherein the coupling substrate is selected from substituted or unsubstituted alkyl claim 24 , substituted or unsubstituted heteroalkyl claim 24 , substituted or unsubstituted cycloalkyl claim 24 , substituted or unsubstituted heterocycloalkyl claim 24 , substituted or unsubstituted aryl and substituted or unsubstituted heteroaryl; and wherein the coupling partner is selected from H claim 24 , substituted or unsubstituted amine claim 24 , substituted or unsubstituted silane claim 24 , substituted or unsubstituted alkyl claim 24 , substituted or ...

Metal-inorganic frameworks

Metal-inorganic frameworks (“MIFs”) having enhanced adsorption capabilities to hydrogen, CO, CO 2 , hydrocarbons, and a variety of other guest molecules are disclosed. All linkers in the MIFs contain metal complexes, comprising metal atoms and inorganic or organic ligands, instead of only organic ligands as linkers in metal-organic frameworks (MOFs). Compared to their MOF counterparts, MIFs with carbon-free or carbon-deficient chemical structure are expected to possess enhanced thermal stability, higher catalytic activity, and higher gas affinity and selectivity.

CATALYSTS FOR METATHESIS REACTIONS INCLUDING ENANTIOSELECTIVE OLEFIN METATHESIS, AND RELATED METHODS

The present invention provides compositions comprising metal complexes, and related methods. In some embodiments, metal complexes of the invention may be useful as catalysts for chemical reactions, including metathesis reactions, wherein the catalysts exhibit enhanced activity and stereoselectivity. In some embodiments, the invention may advantageously provide metal complexes comprising a stereogenic metal atom. Such metal complexes may be useful in enantioselective catalysis. 124-. (canceled)2631-. (canceled)32. The method of claim 25 , wherein the catalyzing occurs with an enantiomeric excess greater than 50%.3337-. (canceled)38. The method of claim 25 , wherein the catalyzing or reacting occurs with a yield of at least 50%.3947-. (canceled)48. The method of claim 25 , wherein the catalyst is present in the cross-metathesis reaction in an amount of 10 mol % or less.4980-. (canceled)81. The method of claim 25 , wherein the cross-metathesis reaction is conducted under an atmosphere of ethylene.8286-. (canceled)90. The method of claim 25 , wherein M is Mo.92. The method of claim 91 , wherein Rand Rare the same or different and are selected from the group consisting of F claim 91 , Cl claim 91 , Br claim 91 , or I.97. The method of claim 96 , wherein Rand Rare the same or different and are selected from the group consisting of F claim 96 , Cl claim 96 , Br claim 96 , or I.100. The method of claim 96 , wherein Rand Rare the same or different and are selected from the group consisting of F claim 96 , Cl claim 96 , Br claim 96 , or I.101. The method of claim 96 , wherein M is Mo. This application is a divisional of U.S. patent application Ser. No. 12/864,261, filed Oct. 12, 2010, and titled CATALYSTS FOR METATHESIS REACTIONS INCLUDING ENANTIOSELECTIVE OLEFIN METATHESIS, AND RELATED METHODS, now U.S. Pat. No. 9,687,834, which is a National Stage Entry of International Application No. PCT/US2009/000465, filed Jan. 23, 2009, and titled CATALYSTS FOR METATHESIS REACTIONS ...

SUSTAINABLE PROCESS FOR PREPARING POLY(LIMONENE)DICARBONATE HAVING HIGH GLASS TRANSITION TEMPERATURE

The present invention concerns a process for the preparation of poly(limonene)dicarbonate (PLDC) from poly(limonene)carbonate, proceeding via the epoxidized intermediate, as well as the resulting PLDC products having an unusually high glass transition temperature. 1. A process for preparing poly(limonene)dicarbonate (PLDC) comprising:a) reacting poly(limonene)carbonate (PLC) with an epoxidation agent to form poly(limonene-8,9-oxide)carbonate (PLOC), and{'sub': '2', 'b) reacting the PLOC obtained in step a) with COto obtain PLDC.'}2. The process according to wherein step b) is carried out in the presence of a halide salt as a catalyst.3. The process according to claim 1 , wherein the epoxidation agent of step a) is meta-chloroperoxybenzoic acid.4. The process according to claim 2 , wherein step b) is carried out in the presence of bis-triphenylphosphine iminium halide as a catalyst.5. The process according to claim 4 , wherein the halide is chloride.6. The process according to wherein the halide salt is sodium bromide.9. The process according to claim 7 , wherein M is Al.10. The process according to claim 1 , wherein step b) is carried out in methyl ethyl ketone as a solvent.13. The process according to claim 12 , wherein M is Al.14. The process according to claim 12 , wherein the bis-triphenylphosphine iminium halide is bis-triphenylphosphine iminium chloride.15. The PLDC obtainable by the process according to .16. A poly(limonene)dicarbonate (PLDC) having a glass transition temperature of at least 150° C.17. The PLDC according to having a glass transition temperature of at most 250° C.18. The PLDC according to having a glass transition temperature of at least 160° C.19. The PLDC according to having a glass transition temperature of at least 170° C.20. The PLDC according to having a glass transition temperature of at most 220° C. This application claims the benefit of priority to U.S. Provisional Patent Application No. 62/659,556, filed on Apr. 18, 2018, the ...

Surfactant-Enabled Transition Metal-Catalyzed Chemistry

In one embodiment, the present application discloses mixtures comprising (a) water in an amount of at least 1% wt/wt of the mixture; (b) a transition metal catalyst; and (c) one or more solubilizing agents; and methods for using such mixtures for performing transition metal mediated bond formation reactions. 114.-. (canceled)16. The mixture of claim 15 , wherein the non-aqueous solvent or solvent mixtures is selected from the group consisting of methanol claim 15 , ethanol claim 15 , propanol claim 15 , isopropanol claim 15 , n-butanol claim 15 , acetone claim 15 , ethyl acetate claim 15 , methyl acetate claim 15 , THF claim 15 , acetonitrile claim 15 , ethyleneglycol or PEGs claim 15 , dioxane claim 15 , MIBK claim 15 , MEK claim 15 , DMA or mixtures thereof.17. The mixture of claim 16 , wherein the non-aqueous solvent or solvent mixtures is selected from the group consisting of propanol claim 16 , isopropanol claim 16 , acetone claim 16 , THF claim 16 , ethyleneglycol or PEGs or mixtures thereof.18. The mixture of claim 15 , wherein the transition metal catalyst is selected from an organo-palladium or -nickel reagent claim 15 , organo-copper or -gold reagent claim 15 , organo-rhodium or -iridium complex claim 15 , or an organo-ruthenium claim 15 , -iron claim 15 , or -osmium reagent claim 15 , wherein the catalyst is capable of promoting cross-coupling reactions claim 15 , or other reactions characteristic of catalysis by these metals claim 15 , that form a carbon-carbon claim 15 , carbon-heteroatom or carbon-hydrogen bond.19. The mixture of claim 15 , wherein the transition metal catalyst comprises less than 5 mole % claim 15 , less than 3 mole % or less than 2 mole % of the mixture.20. The mixture of claim 15 , further comprising (i) a coupling substrate and (ii) a coupling partner.21. The mixture of claim 16 , wherein the coupling substrate is selected from substituted or unsubstituted alkyl claim 16 , substituted or unsubstituted heteroalkyl claim 16 , ...

METHOD FOR PRODUCING OPTICALLY ACTIVE COMPOUND, AND NOVEL METAL-DIAMINE COMPLEX

The present invention pertains to a method for producing an optically active compound which includes a step for reducing an imino group of an imine compound or a step for reducing an unsaturated bond of a heterocyclic compound, while in the presence of hydrogen gas as a hydrogen donor and one or more types of complexes selected from a group consisting of a complex represented by general formula (1), a complex represented by general formula (2), a complex represented by general formula (3), and a complex represented by general formula (4) (the general formulas (1)-(4) are as stipulated by claim ). 4. An asymmetric reduction catalyst comprising the complex according to .5. An asymmetric reduction catalyst comprising the complex according to . The present invention relates to a method for selectively producing an optically active compound important as a precursor for synthesis of pharmaceuticals and functional materials, the methods using any of a ruthenium-diamine complex, an iridium-diamine complex, and a rhodium-diamine complex as a catalyst.In the field of production of optically active amines, many asymmetric reactions, including asymmetric reduction, have been developed, and many asymmetric reactions have been reported which use asymmetric metal complexes having optically active phosphine ligands. Meanwhile, for example, there are many documents reporting that complexes in each of which an optically active nitrogen compound is coordinated to a transition metal, such as ruthenium, rhodium, or iridium, have excellent performance as catalysts for asymmetric synthesis reactions (see Chem Rev. (1992), p. 1051, J. Am. Chem. Soc. 117 (1995), p. 7562, J. Am. Chem. Soc. 118 (1996), p. 2521, and J. Am. Chem. Soc. 118 (1996), p. 4916). Especially, synthesis of optically active amines by hydrogenation reaction has been reported recently (see J. Am. Chem. Soc. 133 (2011), p. 9878, and Angew. Chem. Int. Ed 51 (2012), p. 5706).However, the conventional asymmetric synthesis ...

MULTI-LIGAND METAL COMPLEXES AND METHODS OF USING SAME TO PERFORM OXIDATIVE CATALYTIC PRETREATMENT OF LIGNOCELLULOSIC BIOMASS

A homogeneous catalyst is provided comprising one or more metals; and at least two metal coordinating ligands wherein the homogeneous catalyst is a multi-ligand metal complex_adapted for use with an oxidant in an oxidation reaction to catalytically pretreat lignocellulosic biomass. In one embodiment, the homogenous catalyst is copper (II) 2,2′ bipyridine ethylenediamine (Cu(bpy)en). Related methods are also disclosed. 1. A homogeneous catalyst comprising:one or more metals; andat least two metal coordinating ligands, wherein the homogeneous catalyst is a multi-ligand metal complex adapted for use with an oxidant in an oxidation reaction to catalytically pretreat lignocellulosic biomass.2. The homogeneous catalyst of wherein the multi-ligand metal complex is a multi-ligand copper complex.3. The homogeneous catalyst of wherein said metals capable of interacting with the multi-ligand metal complex are selected from aluminum claim 2 , zinc claim 2 , nickel claim 2 , magnesium and combinations thereof.4. The homogenous catalyst of wherein said metals are selected from Fe(II) claim 3 , Fe(III)) claim 3 , Cu(I) claim 3 , Cu(II) claim 3 , Co(III) claim 3 , Co(VI)) claim 3 , V(II) claim 3 , V(III) claim 3 , V(IV) claim 3 , V(V) and combinations thereof.5. The homogeneous catalyst of wherein the metal coordinating ligand is selected from pyridine claim 1 , 1 claim 1 ,10-phenanthroline claim 1 , ethylenediamene claim 1 , histidine claim 1 , glycine and combinations thereof.6. The homogeneous catalyst of comprising copper (II) 2 claim 1 ,2′ bipyridine ethylenediamine (Cu(bpy)en).7. The homogeneous catalyst of wherein the oxidant is selected from air claim 1 , oxygen claim 1 , hydrogen peroxide claim 1 , persulfate claim 1 , percarbonate and sodium peroxide and/or ozone.8. The homogenous catalyst of wherein the lignocellulosic biomass contains more than trace amounts of at least one transition metal.9. The homogenous catalyst of wherein the transition metal is selected from iron ...

COBALT COMPOUND USEFUL AS CATALYST FOR HYDROSILYLATION, DEHYDROGENATIVE SILYLATION AND CROSSLINKING OF SILICONE COMPOSITIONS

The subject of the present invention is the use, as hydrosilylation and/or dehydrogenative silylation catalyst, of a cobalt compound of formula (1): [CO(N(SiR))]in which: —the R symbols, which are identical or different, represent a hydrogen atom or a hydrocarbon-based radical having from 1 to 12 carbon atoms, and preferably the R symbols, which are identical or different, are chosen from the group consisting of: a hydrogen atom, alkyl groups having from 1 to 8 carbon atoms and aryl groups having from 6 to 12 carbon atoms, —x=1, 2 or 3 and—y=1 or 2.

ECONOMICAL METHODS FOR PERFORMING OXIDATIVE CATALYTIC PRETREATMENT OF PLANT BIOMASS USING A HOMOGENEOUS CATALYST SYSTEM

An improved alkaline pretreatment of biomass is provided that uses a homogenous catalyst with one or more metals and metal coordinating ligands, wherein the homogeneous catalyst is used with at least two oxidants in an oxidation reaction to catalytically pretreat lignocellulosic biomass. In one embodiment, hydrogen peroxide and oxygen are utilized as co-oxidants during alkaline-oxidative pretreatment to improve biomass pretreatment and increase enzymatic digestibility. In one embodiment, the homogenous catalyst is copper (II) 2,2′-bipyridine (Cu(bpy)). Related methods are also disclosed to improve the economic feasibility of production of lignocellulose derived sugars. 1. A method of pretreating plant biomass comprising catalytically pretreating the plant biomass with a metal-ligand complex and at least two oxidants in an alkaline oxidative pretreatment process to produce a catalytically pretreated plant biomass.2. The method of claim 1 , wherein the oxidants are oxygen and hydrogen peroxide.3. The method of claim 2 , wherein the oxygen pressure is from about 25 psi to about 100 psi and the hydrogen peroxide is less than about 5% (w/w).4. The method of claim 1 , wherein the at least two oxidants are present simultaneously in the pretreatment.5. The method of claim 1 , wherein the oxidative pretreatment is conducted at a temperature from about 70° C. to about 90° C.6. The method of claim 1 , wherein the method comprises an alkaline pre-extraction step prior to the oxidative pretreatment process and wherein the alkaline pre-extraction step is conducted at a temperature from about 100° C. to about 140° C.7. The method of claim 1 , wherein the metal-ligand complex is a copper 2 claim 1 ,2′-bipyridine complex (Cu(bpy)).8. The method of claim 1 , wherein the metal-ligand complex comprises a second ligand.9. The method of claim 1 , wherein the catalytic pretreating step produces a liquid phase and the method further comprises:separating the catalytically pretreated biomass ...

Catalytic hydrogenation process for the synthesis of terminal diols from terminal dialkyl aliphatic esters

A phosphorus ligand-free, mild, efficient and complete catalytic hydrogenation process is for the sustainable production of terminal diols from renewable terminal dialkyl esters with improved yield. Soluble, phosphorus ligand free Ru (II)-pincer type complexes can be used as catalysts in the hydrogenation process.

Recyclable chiral catalyst for asymmetric nitroaldol reaction and process for the preparation thereof

The present invention relates to preparation of highly efficient chiral recyclable homogeneous catalysts generated in situ by the reaction of chiral oligomeric [H 4 ] ligands and a metal salt taken in 1:1 molar ratio for asymmetric nitroaldol reaction, wherein nitroaldol reactions of various aldehydes such as aromatic, aliphatic α,β-unsaturated aldehydes, alicyclic aldehydes and nitroalkenes were carried out to produce optically active β-nitroalcohols in high yield and with moderate to excellent enantioselectivity (ee up to >95%) in presence of a base and an optically active chiral recyclable homogeneous catalyst represented by the following formula (I).

METATHESIS CATALYSTS AND REACTIONS USING THE CATALYSTS

The invention relates to a method of forming an olefin from a first olefin and a second olefin in a metathesis reaction, comprising step (i): 131-. (canceled)33. The method of claim 32 , wherein the organometallic compound of aluminum is trioctyl aluminum.34. The method of claim 32 , wherein the organometallic compound of aluminum is a trialkyl aluminum compound claim 32 , and wherein the feedstock is subjected to the trialkyl aluminum compound for a period of from 10 to 80 h.35. The method of claim 32 , wherein the feedstock is subjected to the organometallic compound of aluminum claim 32 , and wherein the organometallic compound of aluminum is added to the first and the second olefin at a rate of from 0.01 to 10 ppmwt organometallic compound of aluminum per hour.36. The method of claim 32 , wherein in the compound of general Formula (A):M=Mo or W;{'sup': '1', 'Ris aryl or adamant-1-yl, each of which is optionally substituted;'}{'sup': '2', 'sub': 3', '2', '6', '5', '3', '3, 'Ris —C(CH)CHor —C(CH);'}{'sup': '3', 'Ris H;'}{'sup': '5', 'Ris alkoxy, heteroaryl, silyloxy, or aryloxy, each of which is optionally substituted; and'}{'sup': 4', '6, 'Ris a residue R—X—, wherein'}{'sup': '6', 'X═O and Ris phenyl substituted with up to five substituents independently selected from alkyl, phenoxy, phenyl, halogen, each of which is optionally substituted; or'}{'sup': '6', 'X═O and Ris 8-(naphthalene-1-yl)-naphthalene-1-yl, optionally substituted; or'}{'sup': '6', 'X═O and Ris 8-phenylnaphthalene-1-yl, optionally substituted; or'}{'sup': '6', 'X═O and Ris quinoline-8-yl, optionally substituted; or'}{'sup': '6', 'X═S and Ris phenyl substituted with up to five substituents independently selected from alkyl, phenoxy, phenyl, halogen, each of which is optionally substituted; or'}{'sup': '6', 'X═O and Ris triphenylsilyl, optionally substituted; or triisopropylsilyl; or'}{'sup': '6', 'X═O and Ris triphenylmethyl, optionally substituted; or'}{'sup': '6', 'X═O and Ris 9-phenyl-fluorene- ...

Phosphine free cobalt based catalyst, process for preparation and use thereof

The present invention discloses a phosphine free cobalt based catalyst of formula (I) and a process for preparation thereof. The present invention further discloses a process for the synthesis of aromatic heterocyclic compounds of formula (II) and pyrazine derivative using the phosphine free cobalt based catalyst of formula (I).

Non-Noble Metal Electrocatalysts for Oxygen Depolarized Cathodes and Their Application in Chlor-Alkali Electrolysis Cells

A simplified and efficient method for preparing non-noble metal catalysts for oxygen reduction reaction (ORR) based on nitrogen containing metal organic framework (MOF) is provided. The method includes formation of a first MOF product through a mechano-chemical reaction between a first transition metal compound and a first organic ligand in the presence of a catalyst. It further includes formation of a second MOF product incorporating a second transition metal and a second organic ligand into the first-MOF product. The second MOF product is converted into an electrocatalyst via pyrolysis, and optionally post-treatment. The electrocatalysts are applicable in various electrochemical systems, including oxygen depolarized cathodes (ODC) for chlorine evolution. 1. A method of synthesizing an electrocatalyst for an oxygen reduction reaction , the method comprising:(a) reacting, using a mechano-chemical reaction, a first organic ligand, a first transition metal or an oxide or a salt thereof, and a catalyst, thereby generating a partially or fully formed first metal organic framework (MOF) product containing the first transition metal, wherein the reaction is performed in the absence of solvent or in the presence of a trace amount of a solvent, and the catalyst is an acid or an inorganic salt;(b) mixing the first MOF product with a second organic ligand and a second transition metal or a salt thereof, whereby the second organic ligand and the second transition metal or the salt thereof coat the surface of and/or incorporate into pores of the first MOF product to generate a second MOF product; and(c) subjecting the second MOF product to pyrolysis, whereby most of the first transition metal evaporates, yielding the electrocatalyst.2. The method according to claim 1 , wherein the mechano-chemical reaction of step (a) comprises ball milling.3. The method according to claim 1 , wherein step (b) comprises a mechano-chemical reaction.4. The method according to claim 3 , wherein ...

催化剂组合物、制备方法及在聚合工艺中的用途

提供聚合催化剂组合物以及其制备方法。所述组合物包含脂肪胺并且有利地用于烯烃聚合工艺中。所述催化剂组合物包含至少一种负载型聚合催化剂，其中所述催化剂组合物被至少一种脂肪胺改性，其中所述脂肪胺基本上不含颗粒无机材料。

Transition metal olefin polymerization processes

This invention relates to processes using non-Group 4 transition metal compositions useful as olefin polymerization catalysts, wherein the transition metal is in a high oxidation state. The invention further relates to design of new ligand systems and methods of preparing and using the same. Compositions useful as catalyst precursors are neutral transition metal complexes comprising the unique ligand systems of the invention. The inventive compositions may be activated to a catalytic state by ion-exchange reagents or by Lewis acids.

Catalyst systems, method for preparing and using same in a polymerization process

A polymerization catalyst system and process, which utilizes a Group 14 and Group 16 containing non-crystalline compound to solubilize or emulsify polymerization catalyst components, is disclosed.

Catalyst preparation method

This invention relates to a method to prepare a supported catalyst system comprising preparing a combination comprising 1) a first supported catalyst system comprising a support, an activator and a metal catalyst compound, and 2) a second supported catalyst system comprising a support, an activator and a metal catalyst compound and thereafter spray-drying the combination.

Multiple catalyst system and polymerization process for use thereof

This invention relates to a catalyst system comprising a half sandwich chromocene compound featuring a tethered N-donor, with an alumoxane and consequent supportation on silica produces a catalyst that produces ultra-high molecular weight polyethylene and that further supportation of a catalyst capable of producing linear low density polyethylene produces a multiple-catalyst system on the same support, capable of producing polyethylene with a bimodal molecular weight distribution and excellent molecular weight.

Process to polymerize olefins

This invention relates to a method to prepare a supported catalyst system comprising preparing a combination comprising 1) a first supported catalyst system comprising a support, an activator and a metal catalyst compound, and 2) a second supported catalyst system comprising a support, an activator and a metal catalyst compound and thereafter spray-drying the combination.

Bridged ylide group containning metal complexes

A metal complex corresponding to the formula (1) or (2) wherein: M is titanium, zirconium, or hafnium in the +4, +3, or +2 oxidation state; Y 1 and Y 2 are independently NR 1 , PR 1 , S, O, or an anionic, cyclic or non-cyclic, ligand group containing delocalized π-electrons; Z is boron, aluminium, gallium or indium.