Koei Chemical Company

Sodegaura, Japan

Koei Chemical Company

Sodegaura, Japan
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Tagata T.,Chiba University | Tagata T.,Koei Chemical Company | Nishida M.,Koei Chemical Company | Nishida A.,Chiba University
Advanced Synthesis and Catalysis | Year: 2010

A new continuous-flow system for C-H borylation has been developed. An insoluble catalyst prepared from chloro(1,5-cyclooctadien)iridium(I) dimer and 2,2′-bipyridine-4,4′-dicarboxylic acid in the presence of bis(pinacolato)diboron exhibited high reactivity under continuous-flow processing without the loss of expensive iridium metal. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.


Uehata K.,Chiba University | Uehata K.,Koei Chemical Company | Nishida M.,Koei Chemical Company | Nishida A.,Chiba University
Chemistry Letters | Year: 2012

We have developed a novel and efficient method for the preparation of unstable tetramethylzirconium and its application to the synthesis of tetrakis(N-methylethylamido)zirconium and dimethylbis(indenyl)zirconium using a microflow system. © 2012 The Chemical Society of Japan.


Patent
Koei Chemical Company | Date: 2015-08-26

The present invention relates to a production method for 2-(ethylamine) ethanol, including subjecting N-ethyldiethanolamine to a disproportionation reaction in the presence of at least one kind of catalyst selected from the group consisting of a manganese oxide catalyst and an alkali metal hydroxide-supporting zirconium oxide catalyst. According to the present invention, 2-(ethylamino)ethanol can be obtained by subjecting N-ethyldiethanolamine to the disproportionation reaction. 2-(Ethylamino)ethanol is a useful compound to be used in various applications such as a drug, an agricultural chemical, and a functional chemical.


Patent
Koei Chemical Company | Date: 2014-04-24

The present invention relates to a novel tetraaryl borate compound and a method for producing the same, and a method for producing a tetraaryl borate compound using the tetraaryl borate compound as an intermediate. According to the present invention, it is possible to provide a tetraaryl borate compound which has high thermal stability and can be safely handled industrially and a method for producing the same. It is also possible to provide a method for producing a tetraaryl borate compound used as a co-catalyst for a polymerization reaction using a metallocene catalyst by further reacting the tetraaryl borate compound with an amine compound.


Patent
Koei Chemical Company | Date: 2013-10-02

The present invention relates to a production method for 2-(ethylamino)ethanol, including subjecting N-ethyldiethanolamine to a disproportionation reaction in the presence of at least one kind of catalyst selected from the group consisting of a manganese oxide catalyst and an alkali metal hydroxide-supporting zirconium oxide catalyst. According to the present invention, 2-(ethylamino)ethanol can be obtained by subjecting N-ethyldiethanolamine to the disproportionation reaction. 2-(Ethylamino)ethanol is a useful compound to be used in various applications such as a drug, an agricultural chemical, and a functional chemical.


Patent
Koei Chemical Company | Date: 2015-05-27

The present invention relates to a method of producing 2-(isopropylamino)ethanol, including subjecting acetone, 2-aminoethanol, and hydrogen to a vapor-phase catalytic reaction in the presence of a noble metal-containing catalyst. According to the present invention, 2-(isopropylamino)ethanol can be industrially obtained in a large amount and with high efficiency through the vapor-phase catalytic reaction of acetone, 2-aminoethanol, and hydrogen. 2-(Isopropylamino)ethanol is a compound useful as a rawmaterial for a drug, an agricultural chemical, or the like.


Patent
Koei Chemical Company | Date: 2016-03-23

The present invention relates to a novel tetraaryl borate compound and a method for producing the same, and a method for producing a tetraaryl borate compound using the tetraaryl borate compound as an intermediate. According to the present invention, it is possible to provide a tetraaryl borate compound which has high thermal stability and can be safely handled industrially and a method for producing the same. It is also possible to provide a method for producing a tetraaryl borate compound used as a co-catalyst for a polymerization reaction using a metallocene catalyst by further reacting the tetraaryl borate compound with an amine compound.


Trademark
Koei Chemical Company | Date: 2011-10-03

Chemicals for use in the manufacture of antistatic preparations for clean-room use, oil dispersants, battery electrolytes, chemical absorbents for absorbing gas, chemical additives for use in the manufacture of rubbers or synthetic resins, antibacterial preparations for use in the manufacture of cosmetics, beverages, food products and food supplements, catalysts for use in the manufacture of industrial chemicals, biochemical catalysts, antifouling preparations, namely, chemical preparations for use in the manufacture of paints, chemical polymeric additives for lubricants, heat mediums, namely heat transfer fluids for industrial use, chemical preparations for use in the manufacture of antiseptics; industrial chemicals; nitrogen compounds; heterocyclic compounds; organic phosphorus compounds; lithium salts; sodium salts; potassium salts; calcium salts; aluminum salts; titanium salts; nickel salts; cupric salts; copper salts; iron salts; magnesium salts; salts of alkaline metals for industrial purposes; salts of alkaline earth metals for industrial purposes; quaternary ammonium salts; quaternary phosphonium salts; ionic liquids, namely, lithium salts, sodium salts, potassium salts, calcium salts, aluminum salts, titanium salts, nickel salts, cupric salts, copper salts, iron salts, magnesium salts, quaternary ammonium salts, or quaternary phosphonium salts with melting points of 100C or lower, or in liquid states at ordinary temperature; ionic liquids, namely, organic lithium salts, organic sodium salts, organic potassium salts, organic calcium salts, or organic magnesium salts with melting points of 100C or lower, or in liquid states at ordinary temperature; surface-active chemical preparations for use in industry; antistatic preparations for electronic equipment; oil dispersants; curing agent dispersants for the preparation of plastics; chemical preparations to prevent mildew; battery electrolytes; capacitor electrolytes; salts for galvanic cells; industrial chemicals for absorbing gases; chemical additives for use in the manufacture of rubbers or synthetic resins; organic chemical solvents for use in the manufacture of chemicals, synthetic rubbers, or synthetic resins; chemical preparations in the nature of organic solubilizer for use in the manufacture of rubbers or synthetic resins; industrial chemicals for the separation of substances from mixtures, other than for medical purposes; antibacterial preparations, namely, chemicals for industrial purposes; catalysts for use in the manufacture of industrial chemicals; antifouling preparations, namely, lithium salts, sodium salts, potassium salts, calcium salts, aluminum salts, titanium salts, nickel salts, cupric salts, copper salts, iron salts, magnesium salts, ammonium salts, phosphonium salts, pyridinium salts, or imidazolium salts; metal plating chemical compositions; solvents for stripping photoresists; ionic liquids, namely, lithium based, sodium based, potassium based, calcium based, magnesium based, quaternary ammonium based, or quaternary phosphonium based salts with melting points of 100C or lower, or in liquid states at ordinary temperature for use in the manufacture of cosmetics, agricultural chemicals, or medicines; ionic liquids, namely, lithium based, sodium based, potassium based, calcium based, magnesium based, quaternary ammonium based, or quaternary phosphonium based salts with melting points of 100C or lower, or in liquid states at ordinary temperature used as solvents for chemical reactions, separation of substances from mixtures, dissolution of rubbers or synthetic resins, or stripping photoresists; ionic liquids, namely, lithium-based salts, sodium-based salts, potassium-based salts, calcium-based salts, aluminum-based salts, titanium-based salts, nickel-based salts, cupric-based salts, copper-based salts, iron-based salts, or magnesium-based salts with melting points of 100C or lower, or in liquid states at ordinary temperature used as antistatic preparations, dispersants, electrolytes, absorbents for gases, chemical additives for rubbers or synthetic resins, antibacterial preparations for industrial purposes, catalysts, antifouling preparations, chemicals for plating processing, lubricants, heat mediums, or antiseptics; organic lithium salts, organic sodium salts, organic potassium salts, organic calcium salts, organic aluminum salts, organic titanium salts, organic nickel salts, organic cupric salts, organic copper salts, organic iron salts, organic magnesium salts, organic ammonium salts, organic phosphonium salts, organic pyridinium salts, or organic imidazolium salts having the melting points of 100C or lower for use in the manufacture of cosmetics, agricultural chemicals, or medicines; organic lithium salts, organic sodium salts, organic potassium salts, organic calcium salts, organic aluminum salts, organic titanium salts, organic nickel salts, organic cupric salts, organic copper salts, organic iron salts, organic magnesium salts, organic ammonium salts, organic phosphonium salts, organic pyridinium salts, or organic imidazolium salts having the melting points of 100C or lower as solvents for chemical reactions, separation of substances from mixtures, dissolution of rubbers or synthetic resins, or stripping photoresists; organic lithium salts, organic sodium salts, organic potassium salts, organic calcium salts, organic aluminum salts, organic titanium salts, organic nickel salts, organic cupric salts, organic copper salts, organic iron salts, organic magnesium salts, organic ammonium salts, organic phosphonium salts, organic pyridinium salts, or organic imidazolium salts having the melting points of 100C or lower used as antistatic preparations, dispersants, electrolytes, absorbents for gases, chemical additives for rubbers or synthetic resins, antibacterial preparations for industrial purposes, catalyst, antifouling preparations, chemicals for plating processing, lubricants, heat mediums, or antiseptics.


The invention relates to an onium salt, a liquid composition containing the onium salt and cellulose, and a method for recovering cellulose. The invention makes it possible to provide an onium salt having an extremely high ability to dissolve cellulose at temperatures of 100 C. or lower. It also makes it possible to provide a liquid composition containing this onium salt and cellulose, as a composition suitable for the recovery of cellulose, and a method for recovering cellulose efficiently by using such a liquid composition containing the onium salt and cellulose.


Patent
Koei Chemical Company | Date: 2013-07-12

The present invention relates to a method of producing 2-(isopropylamino)ethanol, including subjecting acetone, 2-aminoethanol, and hydrogen to a vapor-phase catalytic reaction in the presence of a noble metal-containing catalyst. According to the present invention, 2-(isopropylamino)ethanol can be industrially obtained in a large amount and with high efficiency through the vapor-phase catalytic reaction of acetone, 2-aminoethanol, and hydrogen. 2-(Isopropylamino)ethanol is a compound useful as a raw material for a drug, an agricultural chemical, or the like.

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