Patent classifications
B01J31/16
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.
Method and Composition For Reducing Nitrates, Nitrites, and/or Hydroxylamine in Water Using a Homogeneous Reduced Copper Tetra-Substituted Fluorinated Pinacolate Ligand Catalyst Complex
A method for reducing nitrates, nitrites, and/or hydroxylamine in water using a homogeneous reduced copper tetra-substituted fluorinated pinacolate ligand catalyst complex. The method includes dissolving a copper(II) tetra-substituted fluorinated pinacolate ligand pre-catalyst complex in water having an excess amount of nitrates, nitrites, and/or hydroxylamine therein. The dissolved copper(II) tetra-substituted fluorinated pinacolate ligand pre-catalyst complex in the water is subjected to electrochemical reduction to form a homogeneous reduced copper tetra-substituted fluorinated pinacolate ligand catalyst complex. The homogeneous reduced copper tetra-substituted fluorinated pinacolate ligand catalyst complex reduces the nitrates, nitrites, and/or hydroxylamine in the water to compounds with nitrogen in a lower oxidation state with the homogeneous reduced copper tetra-substituted fluorinated pinacolate ligand catalyst complex.
Synthesis of (S)-2-amino-4-methyl-((R)-2-methyloxirane-2-yl)-pentan-1-one and pharmaceutically acceptable salts thereof
The present invention provides new methods for preparing compound 5, and pharmaceutically acceptable salts thereof, of structure ##STR00001##
Compound 5, or a pharmaceutically acceptable salt thereof, is an important intermediate in the synthesis of carfilzomib. The invention further provides methods of making a useful manganese catalyst that may be used in the epoxidation step of the present invention.
COVALENT ORGANIC FRAMEWORKS AND APPLICATIONS THEREOF IN CHEMICAL REACTIONS
organic frameworks that include catalytic components incorporated throughout the framework. These covalent organic frameworks have unique structural and physical properties, which lend these frameworks to be versatile and useful in a number of different applications and uses and chemical reactions. In one, the covalent organic frameworks include a plurality of fused aromatic groups or polyaromatic groups and ligands, where catalytic components such as transition metal catalysts are coordinated by the ligand to the frameworks.
Metal organic frameworks for removal of compounds from a fluid
Embodiments provide a method of compound removal from a fluid. The method includes contacting one or more metal organic framework (MOF) compositions with a fluid and sorbing one or more compounds, such as CO.sub.2, H.sub.2S and condensable hydrocarbons. One or more of CO.sub.2, H.sub.2S and condensable hydrocarbons can be sorbed simultaneously or in series. The metal organic framework can be an M-soc-MOF.
CATALYTIC POROUS POLYMER FOR SELECTIVE CAPTURE AND REDUCTION OF CARBON DIOXIDE
A catalytic carbon capture material is provided. The catalytic carbon capture material includes a microporous polymer including a Tröger's base moiety, and a transition metal is coordinated within the microporous polymer. The catalytic carbon capture material selectively captures carbon dioxide (CO.sub.2) and also is a catalyst that simultaneously converts the captured carbon dioxide into one or more carbon dioxide-based products. A method of making the catalytic carbon capture material and a method of selective carbon dioxide capture and conversion are also provided.
Catalyst systems and polymerization processes for using the same
A catalyst system including the product of the combination of an unbridged Group 4 metallocene compound and a 2,6-bis(imino)pyridyl iron complex is provided. A process for the polymerization of monomers (such as olefin monomers) and a polymer produced therefrom are also provided.
Salts of methyl 6-(2,4-dichlorophenyl)-5-[4-[(3S)-l-(3-fluoropropyl)pyrrolidin-3-yl]oxyphenyl]-8,9-dihydro-7H-benzo[7]annulene-2-carboxylate and preparation process thereof
Herein are provided novel salts of methyl 6-(2,4-dichlorophenyl)-5-[4-[(3S)-1-(3-fluoropropyl)pyrrolidin-3-yl]oxyphenyl]-8,9-dihydro-7H-benzo[7]annulene-2-carboxylate namely the oxalate salt ##STR00001##
and the dibenzoyltartrate salt ##STR00002##
Microencapsulated polyaddition catalyst
A microencapsulated polyaddition catalyst comprises a capsule core, containing polyaddition catalyst, and an acrylic copolymer capsule shell, the acrylic copolymer comprising copolymerized units of an intermolecular anhydride of an ethylenically unsaturated C.sub.3-C.sub.12 carboxylic acid. The polyaddition catalyst is selected from acyclic tertiary amines, alicyclic tertiary amines, N-alkylimidazoles, phosphines and organic metal salts. It is suitable for catalysing the reaction of a polyol compound with a polyisocyanate compound. The polyaddition catalyst is released by a chemical stimulus, such as on contact with polyols or water, for example.
SYSTEM AND METHOD FOR HYDROGEN PRODUCTION BY DEHYDROGENATION OF FORMIC ACID
The system includes a reactor vessel having a reactor space bound by a reactor wall. The reactor vessel is arranged for holding a mixture of a catalyst and formic acid in the reactor space. The reactor vessel includes a mixture inflow opening for allowing the mixture to enter the reactor space and a mixture outflow opening for allowing said mixture to exit the reactor space, and a gas outflow opening for allowing hydrogen originating from the mixture to exit the reactor space. A method for hydrogen production includes: providing the formic acid and the catalyst into the reactor space; withdrawing the mixture from the reactor space; heating and/or cooling the mixture to a predetermined temperature range outside the reactor space; and introducing the heated and/or cooled mixture into the reactor space in a predetermined direction having a tangential component arranged for stirring said mixture in the reactor space.