Highly Active and Selective Ethylene Oligomerization Catalyst and Method of Preparing Hexene or Octene Using the Same

This invention relates to a chromium complex compound for selective ethylene oligomerization including a chiral ligand, and to a method of selectively preparing 1-hexene or 1-octene from ethylene using the same.

Catalysts

The present invention relates to novel metallocene catalysts of formula I, which is defined herein. The present invention also provides processes for making these catalysts and their use in olefin polymerisation reactions.

Polymerization Process for Producing Bimodal Polymers

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.

Metallorganocatalysis For Asymmetric Transformations

A ligand having the structure or its enantiomer; (I) wherein: each one of R a , R b , R c and R d is selected from alkyl, cycloalkyl, and aryl; the bridge group is selected from CH 2 NH; *CH(CH 3 )NH(C*,R); and the organocatalyst is an organic molecule catalyst covalently bound to the bridge group. Also, a catalyst having the structure or its enantiomer: (II) wherein: each one of R a , R b , R c and R d is selected from alkyl, cycloalkyl, and aryl; the bridge group is selected from CH 2 NH; *CH(CH 3 )NH(C*,R); and *CH(CH 3 )NH(C*,S); the organocatalyst is an organic molecule catalyst covalently bound to the bridge group; and M is selected from the group consisting of Rh, Pd, Cu, Ru, Ir, Ag, Au, Zn, Ni, Co, and Fe.

Process for Reducing the Light Oligomer Content of Polypropylene Oils

Disclosed herein are dual catalyst compositions containing an unbridged metallocene compound, a bridged metallocene compound, a chemically-treated solid oxide, and an optional co-catalyst. These catalyst compositions can be used for the oligomerization of propylene to produce an oligomer product. For example, a heavy propylene oligomer can be recovered from the oligomer product, and the heavy propylene oligomer can be characterized by a high flash point and viscosity index, and a low pour point. 1. An oligomerization process comprising: (i) catalyst component I comprising an unbridged zirconium or hafnium based metallocene compound containing two cyclopentadienyl groups, two indenyl groups, or a cyclopentadienyl and an indenyl group;', '(ii) catalyst component II comprising a single atom bridged, zirconium or hafnium based metallocene compound containing two cyclopentadienyl groups;', '(iii) a chemically-treated solid oxide; and', '(iv) optionally, a co-catalyst;, 'contacting an olefin feedstock comprising propylene with a catalyst composition comprisingto form an oligomer product under oligomerization conditions; andisolating a heavy propylene oligomer by removing unreacted propylene and at least a portion of light propylene oligomers from the oligomer product using one or more separation steps, wherein the heavy propylene oligomer is characterized by a pour point in a range from about 0 to about −55° C.2. The process of claim 1 , wherein the heavy propylene oligomer is characterized by:a flash point in a range from about 140 to about 300° C.; anda viscosity index in a range from about 75 to about 200.3. The process of claim 1 , wherein the heavy propylene oligomer is characterized by:a flash point in a range from about 140 to about 260° C.;a viscosity index in a range from about 80 to about 130; anda pour point in a range from about −5 to about −30° C.4. The process of claim 1 , wherein the heavy propylene oligomer is characterized by:a Mw in a range from about ...

PROCESS FOR PRODUCING HETEROCYCLIC COMPOUND

The present invention provides a method of efficiently producing an optically active 6-(3-aminopiperidin-1-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine derivative. The optically active piperidine-3-carboxamide or a derivative thereof, which is obtained by subjecting 1,4,5,6-tetrahydropyridine-3-carboxamide or a derivative thereof to an asymmetric reduction in the presence of a catalyst, is used as an intermediate. 2. The method according to claim 1 , wherein the organic metal complex is a transition metal complex.3. The method according to claim 2 , wherein the transition metal complex is a ruthenium complex.4. The method according to claim 3 , wherein the ruthenium complex is represented by the formula:{'br': None, 'sup': 'a', 'sub': '2', '[Ru(OCOR)L*]\u2003\u2003(VIII)'}wherein{'sup': 'a', 'sub': '1-3', 'Ris an optionally substituted Calkyl group; and'}{'sup': 'a', 'Lis a diphosphine ligand.'} This application is a divisional of U.S. application Ser. No. 15/125,299, which is the U.S. National Stage application of PCT/JP2015/057541, filed Mar. 13, 2015, which claims priority from Japanese application 2014-052809, filed Mar. 14, 2014.The present invention relates to a production method of an optically active 6-(3-aminopiperidin-1-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine derivative which is useful as a dipeptidylpeptidase inhibitor, and various intermediates useful therefor, and production methods thereof.An optically active 6-(3-aminopiperidin-1-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine derivative is known to be useful as a dipeptidylpeptidase inhibitor and an agent for the treatment of diabetes.Patent Document 1 discloses a method of producing a 6-(3-aminopiperidin-1-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine derivative by reacting optically active 3-aminopiperidine with a 6-chloro-2,4-dioxo-1,2,3,4-tetrahydropyrimidine derivative.Patent Document 2 discloses a method of efficiently producing an optically active 8-(3-aminopiperidin-1-yl)xanthine derivative by ...

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.

Hydroformylation catalyst

This invention pertains to hydroformylation catalysts containing a mixture of isomeric forms of halo-phosphorus ligands. This invention also describes a procedure for preparing isomers of certain halophosphite ligands, which contain the phosphorus atom in a macrocyclic ring.

Novel Compound and Transition Metal Compound

The present invention relates to a novel ligand compound represented by Formula 1 and a novel transition metal compound represented by Formula 2, and the novel ligand compound and transition metal compound according to the present invention has high comonomer incorporation effect in the preparation of an olefinic polymer having a low density and a high molecular weight, and thus can be usefully used as a catalyst for a polymerization reaction.

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.

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 ...

Method for producing a spirooxindole derivative

The present disclosure provides a method for efficiently producing and providing compounds having a spirooxindole skeleton, for example compounds having a spirooxindole skeleton and having antitumor activity that inhibit the interaction between Mdm2 protein and p53 protein, or intermediates thereof, using an asymmetric catalyst. Compounds having optically active tricyclic dispiroindole skeletons are obtained through catalytic asymmetric 1,3-dipolar cycloaddition reaction using ketimine as a reaction substrate and using a chiral ligand and a Lewis acid.

Process for Reducing the Light Oligomer Content of Polypropylene Oils

Disclosed herein are dual catalyst compositions containing an unbridged metallocene compound, a bridged metallocene compound, a chemically-treated solid oxide, and an optional co-catalyst. These catalyst compositions can be used for the oligomerization of propylene to produce an oligomer product. For example, a heavy propylene oligomer can be recovered from the oligomer product, and the heavy propylene oligomer can be characterized by a high flash point and viscosity index, and a low pour point. 120-. (canceled)21. An oligomerization process comprising: (i) catalyst component I comprising an unbridged zirconium or hafnium based metallocene compound containing two cyclopentadienyl groups, two indenyl groups, or a cyclopentadienyl and an indenyl group;', '(ii) catalyst component II comprising a single atom bridged, zirconium or hafnium based metallocene compound containing two cyclopentadienyl groups;', '(iii) a chemically-treated solid oxide; and', '(iv) optionally, a co-catalyst;, 'contacting an olefin feedstock comprising propylene with a catalyst composition comprisingto form an oligomer product under oligomerization conditions; andisolating a heavy propylene oligomer by removing unreacted propylene and at least a portion of light propylene oligomers from the oligomer product using one or more separation steps, wherein the heavy propylene oligomer is characterized by a pour point in a range from about 0 to about −55° C.22. The process of claim 21 , wherein the heavy propylene oligomer is characterized by:a flash point in a range from about 140 to about 300° C.; anda viscosity index in a range from about 75 to about 200.23. The process of claim 21 , wherein the heavy propylene oligomer is characterized by:a flash point in a range from about 140 to about 260° C.;a viscosity index in a range from about 80 to about 130; anda pour point in a range from about −5 to about −30° C.24. The process of claim 21 , wherein the heavy propylene oligomer is characterized by:a Mw ...

Catalysts

The present invention relates to novel metallocene catalysts of formula I, which is defined herein. The present invention also provides processes for making these catalysts and their use in olefin polymerisation reactions.

NOVEL LIGAND COMPOUND AND TRANSITION METAL COMPOUND

The present invention relates to a novel ligand compound represented by Formula 1 and a novel transition metal compound represented by Formula 2, and the novel ligand compound and transition metal compound according to the present invention has high comonomer incorporation effect in the preparation of an olefinic polymer having a low density and a high molecular weight, and thus can be usefully used as a catalyst for a polymerization reaction. 2. The ligand compound according to claim 1 , wherein claim 1 , in Formula 1 claim 1 , Rto Reach independently represent hydrogen claim 1 , an alkyl having 1 to 20 carbon atoms claim 1 , an aryl having 6 to 20 carbon atoms claim 1 , an alkylaryl having 7 to 20 carbon atoms claim 1 , or an arylalkyl having 7 to 20 carbon atoms; two or more adjacent groups of the Rto Rmay be connected to each other to form an aliphatic ring having 5 to 20 carbon atoms or an aromatic ring having 6 to 20 carbon atoms; and the aliphatic ring or aromatic ring may be substituted with a halogen claim 1 , an alkyl having 1 to 20 carbon atoms claim 1 , or an aryl having 6 to 20 carbon atoms.5. The transition metal compound according to claim 4 , wherein claim 4 , in Formula 2 claim 4 , Qand Qeach independently represent hydrogen claim 4 , a halogen claim 4 , an alkyl having 1 to 20 carbon atoms claim 4 , an aryl having 6 to 20 carbon atoms claim 4 , an alkylaryl having 6 to 20 carbon atoms claim 4 , or an arylalkyl having 7 to 20 carbon atoms.6. The transition metal compound according to claim 4 , wherein Rto Reach independently represent hydrogen claim 4 , an alkyl having 1 to 20 carbon atoms claim 4 , an aryl having 6 to 20 carbon atoms claim 4 , an alkylaryl having 7 to 20 carbon atoms claim 4 , or an arylalkyl having 7 to 20 carbon atoms;{'sub': 1', '8, 'two or more adjacent groups of the Rto Rmay be connected to each other to form an aliphatic ring having 5 to 20 carbon atoms or an aromatic ring having 6 to 20 carbon atoms;'}the aliphatic ring or ...

METHOD FOR THE PRODUCTION OF PRAZIQUANTEL AND PRECURSORS THEREOF

The present invention provides methods of preparing Praziquantel, in particular (R)-Praziquantel and analogues thereof in a stereoselective manner. One method involves asymmetric hydrogenation of the following intermediate compound 2. Method according to claim 1 , wherein R is methyl or cyclohexyl.3. Method according to claim 1 , wherein the mixture comprises either the compound according to Formula (X1) or the compound according to Formula (X2) in excess and wherein the hydrogenation step is an asymmetric hydrogenation step in the presence of a catalyst.4. Method according to claim 3 , wherein the compound according to Formula (X1) is present in the mixture in an enantiomeric excess of at least 10% claim 3 , preferably at least 20% claim 3 , more preferably at least 30% claim 3 , at least 40% claim 3 , at least 50% claim 3 , at least 60 claim 3 , at least 70% claim 3 , most preferably at least 80%.5. Method according to claim 3 , wherein the catalyst is an iridium based catalyst.6. Method according to claim 5 , wherein the catalyst comprises an iridium compound in combination with a chiral phosphine ligand.8. Method according to claim 3 , wherein the asymmetric hydrogenation step in the presence of a catalyst is carried out involving at least one of:elevated temperature, which temperature is preferably at least 60° C., for instance at least 80° C., at least 90° C. or at least 100° C.;a solvent selected from dioxane, THF, Me-THF, IPA, DCE, DCM, ethyl acetate, toluene, α,α,α-trifluorotoluene, xylene, preferably m-xylene or p-xylene, mesitylene or a mixture of any two or more thereof;{'sub': 2', '3', '4', '4, 'at least one additive, which is preferably selected from iodine (I), iodide, phosphoric acid (HPO), acetic acid (AcOH), HI, HBF, preferably in an amount of at least 5 mol %, more preferably at least 50 mol %, more preferably at least 100 mol %;'}a substrate concentration of at least 0.05 mmol/l, for instance at least 10 mmol/l, at least 100 mmol/l;a catalyst ...

Phosphine ligands for catalytic reactions

The disclosure is directed to: (a) phosphacycle ligands; (b) catalyst compositions comprising phosphacycle ligands; and (c) methods of using such phosphacycle ligands and catalyst compositions in bond forming reactions.

CHIRAL CATALYST AND METHOD FOR ASYMMETRIC REDUCTION OF AN IMINE

The present disclosure discusses (i) a compound having a chemical formula according to Formula (I), or its enantiomer; and (ii) a compound that is reactive with a hydride to produce a compound having a chemical formula according to Formula (I), or its enantiomer. Formula (I) is: Formula (I) where Rand Rare H, optionally substituted C-Calkyl, or linked together to form an optionally substituted Cor Calkyl group; Rand R′are H; Rand R′ are the same, and are optionally substituted C-Calkyl; and Rand R′ are the same, and are optionally substituted aryl or heteroaryl. In some examples, R4 and R5 are linked, and R′ and R′ are linked, where both linking groups are the same. The present disclosure also discusses methods of asymmetric reduction of an imine, and methods of forming the catalysts and pre-catalysts. 2. The compound according to claim 1 , wherein the optionally substituted C-Calkyl is linear claim 1 , includes a secondary carbon atom claim 1 , or includes a tertiary carbon atom.3. The compound according to claim 1 , wherein the optionally substituted C-Calkyl is substituted with a silyl ether; or substituted with an alkyl ether.4. The compound according to claim 1 , wherein Rand R′ are methyl claim 1 , trifluoromethyl claim 1 , ethyl claim 1 , propyl claim 1 , isopropyl or tert-butyl claim 1 , preferably methyl.5. The compound according to claim 1 , wherein the optionally substituted aryl is optionally substituted: phenyl claim 1 , naphthyl claim 1 , anthracene claim 1 , phenanthrene claim 1 , or pyrene.6. The compound according to claim 1 , wherein the optionally substituted aryl is naphthyl linked at the 1-position or the 2-position.7. The compound according to claim 1 , wherein the optionally substituted aryl is optionally substituted phenyl claim 1 , and Rand R′ are linked to the phenyl ring.8. The compound according to claim 1 ,l wherein the optionally substituted heteroaryl is optionally substituted: quinoline claim 1 , isoquinoline claim 1 , benzofuran ...

METHOD FOR HYDROFORMYLATING CYCLOOCTADIENE USING 4-([1,1':3',1"-TERPHENYL]-2'-YLOXY)-S-DINAPHTHO[2,1-D:1',2'-F][1,3,2]DIOXAPHOSPHEPINE

Method for hydroformylating cyclooctadiene using 4-([1,1′:3′,1″-terphenyl]-2′-yloxy)-S-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine. 2. Method according to claim 1 ,wherein the metal atom is Rh.3. Method according to claim 1 , wherein the precursor complex comprises cyclooctadiene.4. Method according to claim 1 , wherein the precursor complex is [(acac)Rh(COD)].5. Method according to claim 1 , wherein the reaction mixture is heated to a temperature in the range of 50° C. to 70° C. in method step d). The invention relates to a method for hydroformylating cyclooctadiene (COD) using 4-([1,1′:3′,1″-terphenyl]-2′-yloxy)-S-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine.Phosphorus-containing compounds, as ligands, play a crucial role in a multitude of reactions. Said compounds include phosphite ligands, i.e., compounds comprising P—O bonds, used in hydrogenation, hydrocyanation and especially hydroformylation.The reactions between olefin compounds, carbon monoxide and hydrogen in the presence of a catalyst to give the aldehydes with one carbon atom more are known as hydroformylation or the oxo process. In these reactions, compounds of the transition metals of group VIII of the Periodic Table of the Elements are frequently employed as catalysts. Known ligands are, for example, compounds from the classes of the phosphines, phosphites and phosphorites, each with trivalent phosphorus PIII. A good overview of the status of hydroformylation of olefins is found in R. Franke, D. Selent, A. Börner, “Applied Hydroformylation”, Chem. Rev., 2012, DOI:10.1021/cr3001803.The object of invention is to provide a method for hydroformylating cyclooctadiene which affords good conversion of cyclooctadiene.The object is achieved by a method according to claim .Method for hydroformylating cyclooctadiene, comprising the method steps of:or adding a precursor complex comprising a metal atom selected from: Rh, Ru, Co, Ir, and a compound having the structure (1):Here, method steps a) to d) can be ...

Process for producing alcohol analogue

Provided is a process for producing an optically active hydroxyaldehyde or aminohydroxyaldehyde. The process for producing an optically active hydroxyaldehyde or aminohydroxyaldehyde is characterized by reacting an aldehyde or an imine with a boric acid enol ester in the presence of a copper compound and an optically active bidentate phosphine compound.

WATER-INSOLUBLE RUTHENIUM CATALYST COMPOSITION FOR USE IN AQUEOUS HYDROGENATION REACTIONS

The invention relates to a method for converting a precatalyst complex to an active catalyst complex, wherein the precatalyst complex and the active catalyst complex comprise a ruthenium atom and an optically active ligand that is insoluble in water, and the active catalyst complex furthermore comprises a monohydride and a water molecule. The method comprises the steps of providing water as an activation solvent system with a pH value equal or below 2, and solving said precatalyst complex, an acid, and hydrogen therein. The invention further relates to a method for manufacturing a catalyst composition, a method for hydrogenating a substrate molecule and a reaction mixture. 1. A method for obtaining a catalyst composition , comprising the steps ofa) providing water as a preparation solvent system, and a first catalyst composition comprising an optically inactive ligand and a ruthenium metal atom,', 'an optically active ligand, wherein said optically active ligand is insoluble in water,', 'a preparation surfactant that is capable of forming micelles in water and that is resistant to hydrolysis at pH≦2, and', 'an acid,', 'thereby yielding a second catalyst composition comprising said ruthenium atom and said optically active ligand,, 'b) adding to, particularly solving in, said preparation solvent system'}characterized in thatthe pH value of said preparation solvent system is equal or below 2 after addition of said acid.2. The method according to claim 1 , wherein said preparation solvent system comprises ≧25% (v/v) claim 1 , ≧50% (v/v) claim 1 , ≧75% (v/v) claim 1 , ≧80% (v/v) claim 1 , ≧90% (v/v) claim 1 , ≧99% (v/v) or 100% water.3. The method according to claim 1 , wherein said preparation surfactant is non-ionic claim 1 , particularly an alkylglycoside.4. The method according to claim 1 , wherein said preparation surfactant is D-glycopyranoside C9-C11 alkyl.7. The method according to wherein said reaction surfactant is non-ionic surfactant claim 6 , particularly an ...

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- ...

Catalyst system, process for olefin polymerization, and polymer compositions produced therefrom

Provided are catalyst systems, processes for polymerizing one or more olefins, polymers resulting therefrom, and articles prepared from such polymers. The processes comprise contacting under polymerization conditions one or more olefin monomers, preferably propylene, with a catalyst system comprising a transition metal compound and an activator of the formula (1) or (2) as described herein. The polymer compositions described herein exhibit advantageously narrow composition distributions and high melting points in comparison to conventional polymers having the same comonomer content. The polymers described herein exhibit improved properties, e.g., pellet stability, impact properties, heat seal properties, and structural integrity in film and fabricated parts applications.

Polymerization catalysts and process for producing bimodal polymers in a single reactor

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.

Polymerization catalysts and process for producing bimodal polymers in a single reactor

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefms is also provided.

Process for one-pot synthesis of 1,1-diphenyl-1-(3-substituted-cyclopentadienyl)-1-(2,7-di-t-butyl-fluoren-9-yl)methane type ligands

The present invention is directed to a method of making a ligand which can be used to form an ansa-metallocene. Further, the present invention is directed to a method of making the ansa-metallocene. In both methods the process steps employed to form the ligand are conducted in the presence of tetrahydrofuran, a substituted tetrahydrofuran, tetrahydropyran, a substituted tetrahydropyran or ethylene glycol dimethyl ether.

用于在单反应器中产生双峰聚合物的聚合催化剂和方法

提供了催化剂组合物，其包括第一茂金属化合物、第二茂金属化合物、活化剂-载体和有机铝化合物。还提供了制备用于生产聚烯烃的环戊二烯基配合物的改进方法。

Polymerization catalysts and process for producing bimodal polymers in a single reactor

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.

Polymerization process for producing bimodal polymers

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.

Process for preparing a monocyclopentadienyl compound

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.

Polymerization process for producing bimodal polymers

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.

Polymerization process for producing bimodal polymers

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.

Polymerization catalysts and process for producing bimodal polymers in a single reactor

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.

Preparation and use of tetrasubstituted fluorenyl catalysts for polymerization of olefins

Catalyst compositions and processes for the polymerization of ethylenically unsaturated monomers to produce polymers, including copolymers or homopolymers. Such monomers include ethylene, C 3+ alpha olefins and substituted vinyl compounds, such as styrene and vinyl chloride. The polymerization catalyst characterized by the formula B(FluL)MQ n in which Flu is a fluorenyl group substituted at at least the 2,7- and 3,6-positions by hydrocarbyl groups, preferably relatively bulky hydrocarbyl groups. L is a substituted or unsubstituted cyclopentadienyl, indenyl or fluorenyl group or a heteroorgano group, XR, in which X is a heteroatom from Group 15 or 16 of the Periodic Table of Elements, such as nitrogen, R is an alkyl group, a cycloalkyl group or an aryl group and B is a structural bridge extending between the groups L and Flu, which imparts stereorigidity to the ligand structure, M is a Group 4 or Group 5 transition metal, such as titanium, zirconium or hafnium and Q is selected from the group consisting of chlorine, bromine, iodine, an alkyl group, an amino group, an aromatic group and mixtures thereof, with n being 1 or 2.

Catalyst system, olefin polymerization process, and polymer composition produced therefrom

Cyclopentadienyl Complexes Of Group 6 Substituted By Silyl Halides

Cyclopentadienyl complexes of group 6 having at least one cyclopentadienyl system which is substituted by at least one silyl group which bears at least one halogen substituent and a catalyst system comprising at least one of the cyclopentadienyl complexes, and also a process for preparing them, the use of the catalyst system for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system.

Catalyst System, Process for Olefin Polymerization, and Polymer Compositions Produced Therefrom

Provided are catalyst systems, processes for polymerizing one or more olefins, polymers resulting therefrom, and articles prepared from such polymers. The processes comprise contacting under polymerization conditions one or more olefin monomers, preferably propylene, with a catalyst system comprising a transition metal compound and an activator of the formula (1) or (2) as described herein. The polymer compositions described herein exhibit advantageously narrow composition distributions and high melting points in comparison to conventional polymers having the same comonomer content. The polymers described herein exhibit improved properties, e.g., pellet stability, impact properties, heat seal properties, and structural integrity in film and fabricated parts applications.

Polymerization catalysts and process for producing bimodal polymers in a single reactor

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.

Cyclopentadienyl complexes of group 6 substituted by silyl halides

Cyclopentadienyl complexes of group 6 having at least one cyclopentadienyl system which is substituted by at least one silyl group which bears at least one halogen substituent and a catalyst system comprising at least one of the cyclopentadienyl complexes, and also a process for preparing them, the use of the catalyst system for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system.

Catalyst system, process for olefin polymerization, and polymer compositions produced therefrom

Provided are catalyst systems, processes for polymerizing one or more olefins, polymers resulting therefrom, and articles prepared from such polymers. The processes comprise contacting under polymerization conditions one or more olefin monomers, preferably propylene, with a catalyst system comprising a transition metal compound and an activator of the formula (1) or (2) as described herein. The polymer compositions described herein exhibit advantageously narrow composition distributions and high melting points in comparison to conventional polymers having the same comonomer content. The polymers described herein exhibit improved properties, e.g., pellet stability, impact properties, heat seal properties, and structural integrity in film and fabricated parts applications.

Catalyst system, process for olefin polymerization, and polymer compositions produced therefrom

Provided are catalyst systems, processes for polymerizing one or more olefins, polymers resulting therefrom, and articles prepared from such polymers. The processes comprise contacting under polymerization conditions one or more olefin monomers, preferably propylene, with a catalyst system comprising a transition metal compound and an activator of the formula (1) or (2) as described herein. The polymer compositions described herein exhibit advantageously narrow composition distributions and high melting points in comparison to conventional polymers having the same comonomer content. The polymers described herein exhibit improved properties, e.g., pellet stability, impact properties, heat seal properties, and structural integrity in film and fabricated parts applications.

Ruthenium-phosphine complexes

A ruthenium-phosphine complex is of formula [RUX ℓ (L) m (R-BINAP)]Y n       (I) wherein R-BINAP represents a tertiary phosphine represented by wherein R represents a hydrogen atom or a methyl group; X represents a halogen atom; L represents substituted or unsubstituted benzene or acetonitrile; Y represents a halogen atom, ClO₄, PF₆, BPh₄ (wherein Ph represents a phenyl group) or BF₄; when L is substituted or unsubstituted benzene, ℓ represents 1, m represents 1, and n represents 1; and when L is acetonitrile, when ℓ is 1, then m represents 2, and n represents 1, and when ℓ is 0, then m represents 4, and n represents 2. 27 specific complexes are shown. Synthesis is by (a) RuCl₂(Ar) + BINAP in a solvent at 25 to 50°C; (b) [RuCl₂ (Ar)]₂ + Br or I salt of Li, Na or K, in water or in a mixture of water and methylene chloride and in pre­sence of a quaternary ammonium or phosphonium halide; (c) [RuCl(Ar) BINAP]Cl + a Na, K, Li, Mg or Ag salt (MY); of ClO₄, PF₆ BPh₄ or BF ₄ , in an organic solvent; or (d) [RuCl(Ar) BINAP]Cl in an organic solvent, optionally with MY is heated at 25°C-50°C for 10-24 hours. The complex is used as catalyst in asymmetric hydrogenation, e.g. of methyl acetoacetate, and exhibits excellent catalytic activity to provide a product of high optical purity.

Improved hydroformylation process

An improved rhodium-organophosphite complex catalyzed hydroformylation process, the improvement comprising carrying out said process in the presence of a catalytic activity enhancing additive said additive being selected from the class consisting of added water, a weakly acidic compound, or both added water and a weakly acidic compound.

Catalyst System Consisting of a Carrier and of a Co-Catalyst

The invention relates to methods for producing cesium hydroxide solutions during which: cesium-containing ore is disintegrated with sulfuric acid while forming a cesium aluminum sulfate hydrate, which is poorly soluble at low temperatures; the formed cesium alum is separated away in the form of a solution from the solid ore residues; the aluminum is precipitated out of the cesium alum solution while forming a cesium sulfate solution; the formed cesium sulfate solution is reacted with barium hydroxide or stontium hydroxide while forming a cesium hydroxide solution, and; the formed cesium hydroxide solution is concentrated and purified.

Catalyst system consisting of a carrier and of a co-catalyst

The invention relates to methods for producing cesium hydroxide solutions during which: cesium-containing ore is disintegrated with sulfuric acid while forming a cesium aluminum sulfate hydrate, which is poorly soluble at low temperatures; the formed cesium alum is separated away in the form of a solution from the solid ore residues; the aluminum is precipitated out of the cesium alum solution while forming a cesium sulfate solution; the formed cesium sulfate solution is reacted with barium hydroxide or stontium hydroxide while forming a cesium hydroxide solution, and; the formed cesium hydroxide solution is concentrated and purified.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic catalysts, complexes, and methods of using the same

Ligands, compositions, metal-ligand complexes and arrays with substituted bridged bis-biaromatic ligands, and methods of making and using the same, are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers, The catalysts have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands, compositions, metal-ligand complexes and arrays with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands, compositions, metal-ligand complexes and arrays with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands, compositions, metal-ligand complexes and arrays with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands, compositions, metal-ligand complexes and arrays with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic catalysts, complexes, and methods of using the same

Ligands, compositions, metal-ligand complexes and arrays with substituted bridged bis-biaromatic ligands, and methods of making and using the same, are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalysts have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged Bi-Aromatic Ligands, Catalysts, Processes For Polymerizing And Polymers Therefrom

New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands, compositions, metal-ligand complexes and arrays with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

New ligands, compositions, metal-ligand complexes and arrays with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Supported metallocene catalyst, method of preparing the catalyst and method of preparing polyolefin using the catalyst

Provided are a supported metallocene catalyst which has excellent supporting efficiency due to an interaction between a cocatalyst supported on a carrier and a metallocene compound substituted with a functional group that can function as a Lewis base, and a method of polymerizing an olefin using the supported metallocene catalyst. In the supported metallocene catalyst, the metallocene catalyst is strongly bound to the carrier due to a Lewis acid-base interaction between the metallocene compound and the cocatalyst, and thus the metallocene catalyst is not separated from the carrier during the polymerization of polyolefin in a slurry or gas phase method. Thus, fouling is prevented and the prepared polymer has a good particle shape and a high apparent density. Thus, the supported metallocene catalyst can be suitably used in a conventional slurry or gas phase polymerization process.

Supported metallocene catalyst, method of preparing the catalyst and method of preparing polyolefin using the catalyst

Provided are a supported metallocene catalyst which has excellent supporting efficiency due to an interaction between a cocatalyst supported on a carrier and a metallocene compound substituted with a functional group that can function as a Lewis base, such as acetal, ketal, tert-alkoxy alkyl, benzyloxy alkyl, substituted benzyloxy alkyl, monothioacetal, or monothioketal, and a method of polymerizing an olefin using the supported metallocene catalyst. In the supported metallocene catalyst, the metallocene catalyst is strongly bound to the carrier due to a Lewis acid-base interaction between the metallocene compound and the cocatalyst, and thus the metallocene catalyst is not separated from the carrier during the polymerization of polyolefin in a slurry or gas phase method. Thus, fouling is prevented and the prepared polymer has a good particle shape and a high apparent density. Thus, the supported metallocene catalyst can be suitably used in a conventional slurry or gas phase polymerization process.

Supported metallocene catalyst, process for producing the same, and process for producing polyolefin using the same

Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis

The invention relates to a complex of ruthenium of the structural formula I, where X 1 and X 2 are identical or different and are each an anionic ligand, R 1 and R 2 are identical or different and can also contain a ring, and R 1 and R 2 are each hydrogen or/and a hydrocarbon group, the ligand L 1 is an N-heterocyclic carbene and the ligand L 2 is an uncharged electron donor, in particular an N-heterocyclic carbene or an amine, imine, phosphine, phosphite, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether, where R 1 , R 2 , R 3 and R 4 are hydrogen or/and hydrocarbon groups. The invention further relates to a process for preparing acyclic olefins having two or more carbon atoms or/and cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by an olefin metathesis reaction in the presence of at least one catalyst, wherein a complex is used as catalyst and R′ 1 , R′ 2 , R′ 3 and R′ 4 are hydrogen or/and hydrocarbon groups.

Alkylidene complexes of ruthenium containing n-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis

The invention relates to a complex of ruthenium of the structural formula I, where X 1 and X 2 are identical or different and are each an anionic ligand, R 1 and R 2 are identical or different and can also contain a ring, and R 1 and R 2 are each hydrogen or/and a hydrocarbon group, the ligand L 1 is an N-heterocyclic carbene and the ligand L 2 is an uncharged electron donor, in particular an N-heterocyclic carbene or an amine, imine, phosphine, phosphate, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether, where R 1 , R 2 , R 3 and R 4 are hydrogen or/and hydrocarbon groups. The invention further relates to a process for preparing acyclic olefins having two or more carbon atoms or/and cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by an olefin metathesis reaction in the presence of at least one catalyst, wherein a complex is used as catalyst and R ′1 , R ′2 , R ′3 and R ′4 are hydrogen or/and hydrocarbon groups.

Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis

The invention relates to a complex of ruthenium of the structural formula I, where X 1 and X 2 are identical or different and are each an anionic ligand, R 1 and R 2 are identical or different and can also contain a ring, and R 1 and R 2 are each hydrogen or/and a hydrocarbon group, the ligand L 1 is an N-heterocyclic carbene and the ligand L 2 is an uncharged electron donor, in particular an N-heterocyclic carbene or an amine, imine, phosphine, phosphite, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether, where R 1 , R 2 , R 3 and R 4 are hydrogen or/and hydrocarbon groups. The invention further relates to a process for preparing acyclic olefins having two or more carbon atoms or/and cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by an olefin metathesis reaction in the presence of at least one catalyst, wherein a complex is used as catalyst and R′ 1 , R′ 2 , R′ 3 and R′ 4 are hydrogen or/and hydrocarbon groups.

Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis

The invention relates to a complex compound of ruthenium of the general structural formula I in which X 1 and X 2 may be identical or different and represent an anionic ligand, in which R 1 and R 2 are identical or different, but may also have a ring, in which R 1 and R 2 represent hydrogen or/and a hydrocarbon group, in which the ligand L 1 is a N-heterocyclic carbene and in which the ligand L 2 is a neutral electron donor, especially a N-heterocyclic carbene or an amine, imine, phosphane, phosphite, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether, wherein R 1 , R 2 , R 3 and R 4 represent hydrogen or/and hydrocarbon groups. The invention relates also to a process for the preparation of acyclic olefins having two or more carbon atoms or/and of cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by olefin metathesis reaction in the presence of at least one catalyst, wherein such a complex compound is used as catalyst and wherein R′ 1 , R′ 2 , R′ 3 and R′ 4 hydrogen or/and hydrocarbon groups.

Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis

The invention relates to a complex of ruthenium of the structural formula I, where X 1 and X 2 are identical or different and are each an anionic ligand, R 1 and R 2 are identical or different and can also contain a ring, and R 1 and R 2 are each hydrogen or/and a hydrocarbon group, the ligand L 1 is an N-heterocyclic carbene and the ligand L 2 is an uncharged electron donor, in particular an N-heterocyclic carbene or an amine, imine, phosphine, phosphate, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether, where R 1 , R 2 , R 3 and R 4 are hydrogen or/and hydrocarbon groups. The invention further relates to a process for preparing acyclic olefins having two or more carbon atoms or/and cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by an olefin metathesis reaction in the presence of at least one catalyst, wherein a complex is used as catalyst and R′ 1 , R′ 2 , R′ 3 and R′ 4 are hydrogen or/and hydrocarbon groups.

Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis

Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands and their use as highly active, selective catalysts for olefin metathesis The invention relates to a complex of ruthenium of the structural formula I, where X 1 and X 2 are identical or different and are each an anionic ligand, R 1 and R 2 are identical or different and can also contain a ring, and R 1 and R 2 are each hydrogen or/and a hydrocarbon group, the ligand L 1 is an N-heterocyclic carbene and the ligand L 2 is an uncharged electron donor, in particular an N-heterocyclic carbene or an amine, imine, phosphine, phosphite, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether, where R 1 , R 2 , R 3 and R 4 are hydrogen or/and hydrocarbon groups. The invention further relates to a process for preparing acyclic olefins having two or more carbon atoms or/and cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by an olefin metathesis reaction in the presence of at least one catalyst, wherein a complex is used as catalyst and R′ 1 , R′ 2 , R′ 3 and R′ 4 are hydrogen or/and hydrocarbon groups.

Alkylidene complexes of ruthenium containing n-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis

The invention relates to a complex of ruthenium of the structural formula I, where X 1 and X 2 are identical or different and are each an anionic ligand, R 1 and R 2 are identical or different and can also contain a ring, and R 1 and R 2 are each hydrogen or/and a hydrocarbon group, the ligand L 1 is an N-heterocyclic carbene and the ligand L 2 is an uncharged electron donor, in particular an N-heterocyclic carbene or an amine, imine, phosphine, phosphate, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether, where R 1 , R 2 , R 3 and R 4 are hydrogen or/and hydrocarbon groups. The invention further relates to a process for preparing acyclic olefins having two or more carbon atoms or/and cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by an olefin metathesis reaction in the presence of at least one catalyst, wherein a complex is used as catalyst and R′ 1 , R′ 2 , R′ 3 and R′ 4 are hydrogen or/and hydrocarbon groups.

Alkylidene complexes of ruthenium containing n-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis

Abstract of the Disclosure Akylidene complexes of ruthenium containing N-heterocyclic carbene ligands and their use as highly active, selective catalysts for olefin metathesisThe invention relates to a complex of ruthenium of the structural formula I, where X 1 and X 2 are identical or different and are each an anionic ligand, R 1 and R 2 are identical or different and can also contain a ring, and R 1 and R 2 are each hydrogen or/and a hydrocarbon group, the ligand L 1 is an N-heterocyclic carbene and the ligand L 2 is an uncharged electron donor, in particular an N-heterocyclic carbene or an amine, imine, phosphine, phosphite, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether,where R 1 , R 2 , R 3 and R 4 are hydrogen or/and hydrocarbon groups.The invention further relates to a process for preparing acyclic olefins having two or more carbon atoms or/and cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by an olefin metathesis reaction in the presence of at least one catalyst, wherein a complex is used as catalyst and R' 1 , R' 2 , R' 3 and R' 4 are hydrogen or/and hydrocarbon groups.

Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis

The invention relates to a complex of ruthenium of the structural formula I, where X 1 and X 2 are identical or different and are each an anionic ligand, R 1 and R 2 are identical or different and can also contain a ring, and R 1 and R 2 are each hydrogen or/and a hydrocarbon group, the ligand L 1 is an N-heterocyclic carbene and the ligand L 2 is an uncharged electron donor, in particular an N-heterocyclic carbene or an amine, imine, phosphine, phosphate, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether, where R 1 , R 2 , R 3 and R 4 are hydrogen or/and hydrocarbon groups. The invention further relates to a process for preparing acyclic olefins having two or more carbon atoms or/and cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by an olefin metathesis reaction in the presence of at least one catalyst, wherein a complex is used as catalyst and R ′1 , R ′2 , R ′3 and R ′4 are hydrogen or/and hydrocarbon groups.

Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis

The invention relates to a complex compound of ruthenium of the general structural formula I in which X 1 and X 2 may be identical or different and represent an anionic ligand, in which R 1 and R 2 are identical or different, but may also have a ring, in which R 1 and R 2 represent hydrogen or/and a hydrocarbon group, in which the ligand L 1 is a N-heterocyclic carbene and in which the ligand L 2 is a neutral electron donor, especially a N-heterocyclic carbene or an amine, imine, phosphane, phosphite, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether, wherein R 1 , R 2 , R 3 and R 4 represent hydrogen or/and hydrocarbon groups. The invention relates also to a process for the preparation of acyclic olefins having two or more carbon atoms or/and of cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by olefin metathesis reaction in the presence of at least one catalyst, wherein such a complex compound is used as catalyst and wherein R′ 1 , R′ 2 , R′ 3 and R′ 4 hydrogen or/and hydrocarbon groups.

Optically active chiral diphosphine ligands

An (R) or (S) chiral diphosphine of formula (I): wherein R and R1, which can be identical or different, represent an optionally saturated C 1-10 alkyl group, an optionally saturated C 3-9 cycloalkyl group, a C 5-10 aryl group, the groups being optionally substituted by a halogen, a hydroxy, a C 1-5 alkoxy, an amino, a sulfino, a sulonfyl, with R 4 representing an alkyl, an alkoxy or an alkylcarbonyl, the alkyl, cycloalkyl, aryl groups optionally including one or more heteroatoms, or R and R1 together represent an optionally saturated C 2-6 substituted alkyl group, an optionally saturated C 3-9 cycloalkyl group, a C 5-10 aryl group, the cycloalkyl or aryl groups being optionally substituted by a C 1-5 alkyl, a halogen, a hydroxy, a C 1-5 alkoxy, an amino, a sulfino, a sulonfyl, with R 4 representing an alkyl, an alkoxy or an alkylcarbonyl, the alkyl, cycloalkyl, aryl groups optionally including one or more heteroatoms, R2 and R3, which can be identical or different, represent an optionally saturated C 3-8 cycloalkyl group, a C 6-10 aryl group, the groups being optionally substituted by a halogen, a hydroxy, a C 1-5 alkoxy, an amino, a sulfino, a sulonfyl, with R 4 representing an alkyl, an alkoxy or an alkylcarbonyl, the cycloalkyl, aryl groups optionally including one or more heteroatoms, or R2 and R3 together form an optionally saturated C 4-8 cyclic group, a C 6-10 aryl group, the groups being optionally substituted by a halogen, a hydroxy, a C 1-5 alkoxy, an amino, a sulfino, a sulonfyl, with R 4 representing an alkyl, an alkoxy or an alkylcarbonyl, the cyclic and aryl groups optionally including one or more heteroatoms.

Polyorganosilsesquioxane supported metallocene catalysts

Supported stereospecific catalysts and processes for the stereotactic propagation of a polymer chain derived from ethylenically unsaturated monomers such as the polymerization of propylene to produce syndiotactic polypropylene or isotactic polypropylene. The supported catalyst comprises a stereospecific metallocene catalyst component and a co-catalyst component comprising an alkylalumoxane. Both the metallocene catalyst component and the co-catalyst component are supported on a particulate polyorganosilsesquioxane support comprising spheroidal particles of a polyorganosilsesquioxane having an average. diameter with the range of 0.3–20 microns. The polyorganosilsesquioxane support is characterized by relatively low surface area, specifically a surface area less than 100 square meters per gram. The metallocene component can take the form of a single metallocene or two or more metallocenes which are co-supported on the polyorganosilsesquioxane support.

Catalyst

Polymerization catalysts and process for producing bimodal polymers in a single reactor

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefms is also provided.

Polymerization catalysts and process for producing bimodal polymers in a single reactor

제 1 메탈로센 화합물, 제 2 메탈로센 화합물, 활성화제-담지제, 유기알루미늄 화합물을 포함하는 촉매 조성물이 제공된다. 폴리올레핀을 제조하는데 사용되는 시클로펜타디엔일 복합체를 제조하는 개선된 방법 또한 제공된다. There is provided a catalyst composition comprising a first metallocene compound, a second metallocene compound, an activator-supporting agent, and an organoaluminum compound. There is also provided an improved method of making a cyclopentadienyl complex for use in making polyolefins.

Processo para hidrocianação e composição de catalisador

CATALYSTS FOR THE CONDUCT OF CROSSED COUPLING REACTIONS.

SE PROPONE UN SISTEMA DE CATALIZADOR, EN ESPECIAL PARA LAS REACCIONES DE ACOPLAMIENTO CRUZADAS, QUE SE PUEDE OBTENER MEDIANTE REACCION A) DE UNA COMPOSICION DE PALADIO (II) CON B) UN LIGANDO DE FOSFANO SOLUBLE EN AGUA Y C) UN SULFOXIDO O UN ALCOHOL POLIVALENTE. A CATALYSTING SYSTEM IS PROPOSED, ESPECIALLY FOR CROSSED COUPLING REACTIONS, WHICH CAN BE OBTAINED BY REACTION A) OF A PALADIO COMPOSITION (II) WITH B) A WATER SOLUBLE PHOSPHANE BINDING AND C) A SULFOXIDE OR A POLYAL ALCOHOL .

Supported metallocene catalyst using the metallocene compound, method for preparing the same and method for manufacturing polyolefins using the same

본 발명은 조촉매가 담지된 담체와 루이스 염기의 역할을 할 수 있는 작용기가 치환된 메탈로센 화합물 간에 상호작용에 의해 담지 효율을 극대화할 수 있는 담지 메탈로센 촉매 및 이를 이용한 올레핀 중합 방법을 제공한다. The present invention provides a supported metallocene catalyst and an olefin polymerization method using the same, which can maximize the supporting efficiency by interaction between a carrier supported by a promoter and a metallocene compound substituted with a functional group capable of acting as a Lewis base. to provide. 본 발명에 따른 담지 메탈로센 촉매는 메탈로센 화합물과 조촉매 간에 루이스 산-염기 상호작용에 의해 강하게 결합하고 있기 때문에 중합공정 중에 표면으로 유리되어 나오는 촉매가 없어서 슬러리 혹은 기상 중합으로 폴리 올레핀을 제조할 때 반응기 파울링이 거의 없고, 제조되는 폴리머의 입자 형태 및 겉보기 밀도가 우수하여 기종의 슬러리 또는 기상 중합 공정에 적합하다. Since the supported metallocene catalyst according to the present invention is strongly bound by the Lewis acid-base interaction between the metallocene compound and the promoter, there is no catalyst which is released to the surface during the polymerization process. There is little reactor fouling at the time of preparation, and the particle shape and apparent density of the polymer to be produced are excellent, which makes it suitable for a conventional slurry or gas phase polymerization process. 담지 메탈로센 촉매, 알킬알루미늄 화합물, 메탈로센 촉매, 실리카, 조촉매, 알루미녹산, 올레핀, 에틸렌, 폴리올레핀, 폴리에틸렌, 작용기 Supported metallocene catalyst, alkylaluminum compound, metallocene catalyst, silica, promoter, aluminoxane, olefin, ethylene, polyolefin, polyethylene, functional group

ASYMMETRIC SYNTHESIS.

ESTA INVENCION ES RELATIVA A SINTESIS ASIMETRICA EN LA CUAL UN COMPUESTO PROQUIRICO O QUIRICO ESTA CONECTADO EN LA PRESENCIA DE UN COMPLEJO CATALIZADOR LIGANTE CTIVO PARA PRODUCIR UN PRODUCTO OPTICAMENTE ACTIVO. THIS INVENTION IS RELATIVE TO ASYMMETRICAL SYNTHESIS IN WHICH A PROQUIRIC OR CHIRICAL COMPOUND IS CONNECTED IN THE PRESENCE OF A LIGATING CATALYST COMPLEX TO PRODUCE AN OPTICALLY ACTIVE PRODUCT.

Cyclopentadienyl complex of Group 6 for use in making a catalyst system for olefin polymerization has cyclopentadienyl system(s) being substituted by silyl group(s) that bears halogen substituent(s)

A cyclopentadienyl complex of Group 6 has cyclopentadienyl system(s) that is substituted by silyl group(s) that bears halogen substituent(s). Independent claims are also included for: (A) a process for preparing the inventive cyclopentadienyl complexes of group 6, comprising reacting a cyclopentadienyl complex of group 6 with boron trihalide; (B) a catalyst system for olefin polymerization, comprising the inventive cyclopentadienyl complex of group, optionally an organic or inorganic support, optionally activating compounds, further catalysts suitable for olefin polymerization, and optionally metal compounds containing metals of group 1, 2 or 13 of the Periodic Table; and (C) a process for preparing polyolefins, comprising polymerization or copolymerization of olefins in the presence of the catalyst system.

Katalysatorsystem aus einem träger und einem co-katalysator

Die vorliegende Erfindung beschreibt Katalysatorsysteme aus einem Träger und einem Co-Katalysator, Verfahren zu deren Herstellung sowie deren Verwendung zur Olefinpolymerisation.

Process for reducing the light oligomer content of polypropylene oils

Disclosed herein are dual catalyst compositions containing an unbridged metallocene compound, a bridged metallocene compound, a chemically-treated solid oxide, and an optional co-catalyst. These catalyst compositions can be used for the oligomerization of propylene to produce an oligomer product. For example, a heavy propylene oligomer can be recovered from the oligomer product, and the heavy propylene oligomer can be characterized by a high flash point and viscosity index, and a low pour point.

Process for reducing the light oligomer content of polypropylene oils

Disclosed herein are dual catalyst compositions containing an unbridged metallocene compound, a bridged metallocene compound, a chemically-treated solid oxide, and an optional co-catalyst. These catalyst compositions can be used for the oligomerization of propylene to produce an oligomer product. For example, a heavy propylene oligomer can be recovered from the oligomer product, and the heavy propylene oligomer can be characterized by a high flash point and viscosity index, and a low pour point.

Bridged bi-aromatic ligands, complexes, catalysts and processes for polymerizing and poymers therefrom

Polymerization catalysts and process for producing bimodal polymers in a single reactor

제 1 메탈로센 화합물, 제 2 메탈로센 화합물, 활성화제-담지제, 유기알루미늄 화합물을 포함하는 촉매 조성물이 제공된다. 폴리올레핀을 제조하는데 사용되는 시클로펜타디엔일 복합체를 제조하는 개선된 방법 또한 제공된다. There is provided a catalyst composition comprising a first metallocene compound, a second metallocene compound, an activator-supporting agent, an organoaluminum compound. There is also provided an improved method of making cyclopentadienyl composites used to prepare polyolefins.

Polymerization catalysts and process for producing bimodal polymers in a single reactor

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.

一种手性配体金属络合物催化体系及制法和应用

一种手性膦配体金属络合物催化体系，由配体与金属Rh、Ru、Ir、Pt或Pd形成的络合物或配体与相应金属前体按1～2摩尔比组成；该催化体系中的膦配体是以D－型甘露醇或L－型甘露醇为手性源经过反应合成一种高效的手性亚磷酸酯配体。本手性膦配体与铑金属化合物形成的催化剂参与的不对称氢化反应条件温和，可以在室温下反应；氢气的压力适用范围广，从常压到高压均不影响催化剂的活性，立体选择性，反应时间为1～24小时，配体与金属铑化合物的摩尔比为1∶1～2∶1，反应底物与催化剂的比为100～10,000。

Ligand for asymmetric synthesis catalyst and method for producing α-alkenyl cyclic compound using the same

Catalyst system, process for olefin polymerization, and polymer compositions produced therefrom

Provided are catalyst systems, processes for polymerizing one or more olefins, polymers resulting therefrom, and articles prepared from such polymers. The processes comprise contacting under polymerization conditions one or more olefin monomers, preferably propylene, with a catalyst system comprising a transition metal compound and an activator of the formula (1) or (2) as described herein. The polymer compositions described herein exhibit advantageously narrow composition distributions and high melting points in comparison to conventional polymers having the same comonomer content. The polymers described herein exhibit improved properties, e.g., pellet stability, impact properties, heat seal properties, and structural integrity in film and fabricated parts applications.

催化剂体系、烯烃聚合方法和由其制备的聚合物组合物

提供了催化剂体系，使一种或多种烯烃聚合的方法，由其所得的聚合物，和由此种聚合物制备的制品。所述方法包括在聚合条件下使一种或多种烯烃单体，优选丙烯与催化剂体系接触，该催化剂体系包含过渡金属化合物和本文描述的通式(1)或(2)的活化剂。本文描述的聚合物组合物与具有相同共聚单体含量的常规聚合物相比有利地显示窄的组成分布和高熔点。本文描述的聚合物在膜和制造的部件应用中显示改进的性能，例如粒料稳定性、冲击性能、热封性能和结构完整性。

Catalyst system, process for olefin polymerization, and polymer compositions produced therefrom

Provided are catalyst systems, processes for polymerizing one or more olefins, polymers resulting therefrom, and articles prepared from such polymers. The processes comprise contacting under polymerization conditions one or more olefin monomers, preferably propylene, with a catalyst system comprising a transition metal compound and an activator of the formula (1) or (2) as described herein. The polymer compositions described herein exhibit advantageously narrow composition distributions and high melting points in comparison to conventional polymers having the same comonomer content. The polymers described herein exhibit improved properties, e.g., pellet stability, impact properties, heat seal properties, and structural integrity in film and fabricated parts applications.

Catalyst system, process for olefin polymerization, and polymer compositions produced therefrom

Provided are catalyst systems, processes for polymerizing one or more olefins, polymers resulting therefrom, and articles prepared from such polymers. The processes comprise contacting under polymerization conditions one or more olefin monomers, preferably propylene, with a catalyst system comprising a transition metal compound and an activator of the formula (1) or (2) as described herein. The polymer compositions described herein exhibit advantageously narrow composition distributions and high melting points in comparison to conventional polymers having the same comonomer content. The polymers described herein exhibit improved properties, e.g., pellet stability, impact properties, heat seal properties, and structural integrity in film and fabricated parts applications.

催化剂体系、烯烃聚合方法和由其制备的聚合物组合物

本发明提供了催化剂体系，使一种或多种烯烃聚合的方法，由其所得的聚合物，和由此种聚合物制备的制品。所述方法包括在聚合条件下使一种或多种烯烃单体，优选丙烯与催化剂体系接触，该催化剂体系包含过渡金属化合物和本文描述的通式(1)或(2)的活化剂。本文描述的聚合物组合物与具有相同共聚单体含量的常规聚合物相比有利地显示窄的组成分布和高熔点。本文描述的聚合物在膜和制造的部件应用中显示改进的性能，例如粒料稳定性、冲击性能、热封性能和结构完整性。

Catalysts

The present invention relates to novel metallocene catalysts of formula I, which is defined herein. The present invention also provides processes for making these catalysts and their use in olefin polymerisation reactions.

Polyorganosilsesquioxane supported metallocene catalysts

Supported stereospecific catalysts and processes for the stereotactic propagation of a polymer chain derived from ethylenically unsaturated monomers such as the polymerization of propylene to produce syndiotactic polypropylene or isotactic polypropylene. The supported catalyst comprises a stereospecific metallocene catalyst component and a co-catalyst component comprising an alkylalumoxane. Both the metallocene catalyst component and the co-catalyst component are supported on a particulate polyorganosilsesquioxane support comprising spheroidal particles of a polyorganosilsesquioxane having an average. diameter with the range of 0.3-20 microns. The polyorganosilsesquioxane support is characterized by relatively low surface area, specifically a surface area less than 100 square meters per gram. The metallocene component can take the form of a single metallocene or two or more metallocenes which are co-supported on the polyorganosilsesquioxane support.

CATALYST THAT INCLUDES A NICKEL COMPLEX (O) WITH A BINDING PHOSPHONITE, MONKEY, -BI- OR POLIDENTED, PROCEDURE FOR ITS PREPARATION, PROCEDURE FOR THE PREPARATION OF C5 MONO-OLEFINIC MIXTURES WITH LIGHTNESS C = CYCED: , ADIPOD PREPARATION PROCEDURE

Catalizador que comprende un complejo de níquel(O), con un ligando fosfonito mono, bi- o polidentado de la formula general I: en donde: A junto con laparte del grupo fosfonito a la cual está unido representa un heterociclo de 5 a 8 miembros, el cualpuede ser ciclizado eventualmente adicionalmente una, doso tres veces con cicloalquilo, arilo y/o heteroarilo, en donde los grupos ciclizados pueden llevar uno, dos o tres sustituyentes, seleccionados entre alquilo,alcoxi, halogeno, nitro, ciano o carboxilo. R1 representa alquilo, arilo o heteroarilo, los que pueden llevar uno, dos o tres de los siguientes sustituyentes:alquilo, cicloalquilo, arilo, alcoxi, cicloalquiloxi, entre ambos o sales y mezclas del mismo, procedimiento para su preparacion de mezclas de mononitrilos C5monoolefínicos con ligadura C=C y C:::N no conjugada por hidrocianuracion catalítica de butadieno o una mezcla de hidrocarburos que contiene 1,3-butadineo yprocedimiento para la preparacion de adiponitrilo, donde la hidrocianuracion se realiza en presencia de un catalizador de este tipo. A partir de dichosnitrilos se obtienen las alfa-omega-alquilendiaminas las que a su vez son el producto de partida para preparar poliamidas. Catalyst comprising a nickel (O) complex, with a mono, bi- or polydentate phosphonite ligand of the general formula I: wherein: A together with the part of the phosphonite group to which it is attached represents a 5- to 8-membered heterocycle , which may optionally be cyclized additionally once, twice or three times with cycloalkyl, aryl and / or heteroaryl, where the cyclized groups may carry one, two or three substituents, selected from alkyl, alkoxy, halogen, nitro, cyano or carboxyl. R1 represents alkyl, aryl or heteroaryl, which may carry one, two or three of the following substituents: alkyl, cycloalkyl, aryl, alkoxy, cycloalkyloxy, between both or salts and mixtures thereof, process for preparing mixtures of C5monoolefin mononitriles with ligature C = C and C ::: N not ...