Tosoh F-tech, Inc.

Tosoh Corporation

Tosoh Finechem Corporation

Sagami Chemical Research Center

Nippon Chemi-con Corporation

Hideyuki Mimura

Shoji Arai

Kosuke Kawada

Hisao Eguchi

Norihisa Kondo

Hiroshi Matsuo

Masashi Ozawa

Takumi Kagawa

Takamasa Fuchikami

Toshihide Yamamoto

Toru Yoshida

Junichi Kawakami

Kenji Tokuhisa

Tomoya Shimono

Motohiro Oguri

Tomonari Nagai

Noriko Wakasa

Hisanori Okada

Hideyuki Murakita

Masahiro Aoki

Hideki Miyauchi

Kazunori Nukui

Daisuke Inoue

Hiroki Takamiya

Yusuke Sesoko

Akio Watanabe

Noritaka Nagasaki

Hiroaki Fujita

T Iii-702 Gou Kimura-Roiyarumansyon Fuchikami

Noriko; Wakasa

Provided is a method of stabilizing a perfluorodioxolane compound, which includes having a quinone compound present in a composition containing a perfluorodioxolane compound, wherein the perfluorodioxolane compound is one or more perfluorodioxolane compounds selected from the group consisting of a perfluorodioxolane compound denoted by general formula (1) and a perfluorodioxolane compound denoted by general formula (2).

Method of stabilizing perfluorodioxolane compound, perfluorodioxolane compound-containing composition and method of producing perfluorodioxolane compound polymer

Provided is a method of manufacturing a trifluoropyruvyl fluoride dimer, including a reaction step of reacting hexafluoropropylene oxide and aldehyde.

Aldehyde adduct of hexafluoropropylene oxide, method of manufacturing trifluoropyruvyl fluoride dimer and method of manufacturing perfluoro(2,4-dimethyl-2-fluoroformyl-1,3-dioxolane)

[Problem] To provide a fluorine-containing phosphate ester-amide which has high flame retardancy such as exhibiting flame retardant effects at a small quantity of addition, and sufficient hydrolysis resistance. [Solution] A fluorine-containing phosphate ester-amide represented by general formula (1). (In the formula, R1 and R2 are the same or different and represent a branched or linear alkyl group having 1 to 20 carbon atoms in which at least one carbon bonded to a nitrogen atom is a secondary or tertiary carbon, wherein R1 and R2 may have a substituent group selected from the group consisting of an alkoxy group, a hydroxy group, an amino group, a methyl amino group, an ethyl amino group, a dimethyl amino group, diethyl amino group and a fluorine atom. In addition, R1 and R2 may be bonded together to form a five- to eight-membered cyclic structure. X and Y are the same or different and represent a hydrogen atom or a fluorine atom, and n and m represent an integer of 1 to 6.) 

Fluorine-containing phosphate ester-amide, and flame retardant resin, flame retardant liquid and flame retardant solvent for organic synthesis containing same

Provided is a flame-retardant electrolytic capacitor which is capable of maintaining flame-retardant effect even after a prolonged period of time. This is an electrolytic capacitor comprising an anode foil that is provided with an oxide film on the surface, a cathode foil, a separator, and an electrolytic solution that contains a solute in a solvent, wherein a phosphoric acid ester amide represented by the following general formula (1) is contained in the electrolytic solution: 

Flame-retardant electrolytic capacitor

A method for stabilizing a solution that contains LiPFby increasing thermal stability of LiPFwithout changing the structure thereof; an electrolyte solution for nonaqueous secondary batteries, which has increased thermal stability; and a nonaqueous secondary battery which has increased thermal stability. The solution containing LiPFcontains a phosphoric acid ester amide in such an amount that the molar ratio of the phosphoric acid ester amide relative to LiPFis 0.001-2.

[object Object]

A catalyst for oxidizing 2,2,2-trifluoroethanol to form trifluoroacetaldehyde. The catalyst has a long life and achieves high conversion and selectivity. The catalyst of the present invention comprises one or more metal oxides, including at least vanadium oxide, and zirconia as a carrier.

Catalyst for oxidizing 2,2,2-trifluoroethanol and process for producing trifluoroacetaldehyde

A process for producing a fluorine-containing acrylic acid ester represented by CH&#x2550;C(Rf)(COOR) characterized in that 1-bromo-1-perfluoroalkylethene represented by CH&#x2550;CBr&#x2014;Rf, or 1,2-dibromo-1-perfluoroalkylethane represented by CHCBr&#x2014;CHBr&#x2014;Rf is allowed to react with an alcohol represented by ROH in the presence of a palladium catalyst, carbon monoxide, and two or more kinds of bases. The fluorine-containing acrylic acid ester is a useful compound having wide applications in materials for pharmaceuticals and functional polymers.

Method for producing fluorine-containing acrylate

The present invention concerns a method for purifying/separating a 2-fluoro-3-oxoalkylcarboxylic acid ester from a reaction mixture resulting from the fluorination of a 3-oxoalkylcarboxylic acid ester. The method involves depleting the reaction mixture of a hydrogen fluoride byproduct; and subsequently, separating the 2-fluoro-3-oxoalkylcarboxylic acid ester by distillation. The 2-fluoro-3-oxoalkylcarboxylic acid ester obtained by the method of the invention is highly pure and is thus suitable for use as an intermediate for the production of pharmacological products or agricultural chemicals.

Method of purifying and separating 2-fluoro-3-oxoalkylcarboxylic acid ester

A process for producing a 2-fluoro-3-oxoalkylcarboxylic acid ester by fluorinating 3-oxoalkylcarboxylic acid ester with a fluorine gas is provided. The process is characterized in that the concentration of 3-oxoalkylcarboxylic acid ester in the reaction mixture for fluorination is maintained at 3 wt % or higher. Also provided is a process for purifying 2-fluoro-3-oxoalkylcarboxylic acid ester characterized in that 2-fluoro-3-oxoalkylcarboxylic acid ester is produced at high yield and with less impurities by washing fluorinated 3-oxoalkylcarboxylic acid ester with 3 or more times as much water as the amount of reaction mixture. According to the processes of the present invention, not only is the generation of unwanted by-products minimized, but fluorinated 3-oxoalkylcarboxylic acid ester can be purified in an efficient manner. Thus, the present invention permits efficient production of considerably pure 2-fluoro-3-oxoalkylcarboxylic acid ester, a useful intermediate material in the production of various medical and agricultural agents.

Process for preparing 2-fluoro-3-oxoalkylcarboxylic acid ester

A method for producing fluorinated alcohols from fluorinated alkyl halides can produce fluorinated alcohols at high product yield and at high selectivity in a single-step reaction. The method eliminates the need to use heavy metals and other toxic compounds that are difficult to handle or process. Specifically, the method produces a fluorinated alcohol represented by the following general formula (2):Rf(A)OH&#x2003;&#x2003;(2)wherein Rf represents a perfluoroalkyl group having 1 to 10 carbon atoms; and A represents a straight-chained or branched saturated hydrocarbon group having 3 to 10 carbon atoms. The method is characterized in that it allows a fluorinated alkyl halide represented by the following general formula (1) to react with an alkali metal salt of 4-hydroxybutyrate in a gamma-butyrolactone solvent:Rf(A)X&#x2003;&#x2003;(1)wherein Rf and A are as defined above; and X represents a halogen atom.

Process for producing fluorinated alcohol

A catalyst for trimerization of ethylene is disclosed which comprises (a) a chromium complex having a neutral multidentate ligand having a tripod structure, represented by the formula, ACrJ Q wherein A is a neutral multidentate ligand having a tripod structure, J is a carbonyl ligand or halogen, n is an integer of 0-3, and Q is at least one member selected from hydrogen, a C -C hydrocarbon group, a C -C carboxylate group, a C -C diketonato group, an amide group, an imide group, an C -C alkoxide group, a C -C thioalkoxide group, an C -C arene ligand, an C -C alkene ligand, an C -C alkyne ligand, an amine ligand, an imine ligand, an isonitrile ligand, a phosphine ligand, a phosphine oxide ligand, a phosphite ligand, an ether ligand, a sulfide ligand, a sulfone ligand and a sulfoxide ligand, and (b) a metal alkyl compound. The catalyst optionally further comprises (c) at least one compound selected from aromatic tertiary amine compounds, except for an imine, and nitrogen-containing heterocyclic compounds, and (d) a radical anion compound.

Catalyst for trimerization of ethylene and process for trimerizing ethylene using the catalyst

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Shunan, Japan

Hideyuki Mimura