Daikin Industries, Ltd.

Hokkaido University

Atsushi Shirai

Yosuke Kishikawa

Sumi Ishihara

Tatsuya Ohtsuka

Yoshichika Kuroki

Moe Hosokawa

Makoto Matsuura

Shoji Hara

Takashi Namikawa

Michiaki Okada

Yoshito Tanaka

Masahiro Higashi

Masatoshi Nose

Yuuki Suzuki

Asako Yoshiyama

Akitoshi Ogata

Shiomi Ashida

Manaho Tomioka

Disclosed is a method for producing an acrylic acid derivative represented by formula (1):

Production method of acrylic acid derivative

An object of the present disclosure is to provide a method for producing a fluorine-containing polymer and a composition containing the fluorine-containing polymer. The present disclosure provides a composition comprising (A) a fluorine-containing polymer comprising as a main component a structural unit containing a fluorine-containing aliphatic ring, and (B) an aprotic solvent, wherein the fluorine-containing aliphatic ring of the fluorine-containing polymer (A) contains one, two, or three etheric oxygen atoms as a ring-constituting atom; when the fluorine-containing aliphatic ring contains a plurality of etheric oxygen atoms, the etheric oxygen atoms are not adjacent to each other; and the fluorine-containing polymer (A) is present in an amount of 20 mass % or more based on the mass of the composition.

Method for producing fluorine-containing polymer and composition thereof

An object of the present invention is to provide a method for producing a propionic acid derivative with high productivity. The object can be achieved by a method for producing a compound represented by formula (1): wherein Ris a halogen atom or the like, Rand Rare each independently a hydrogen atom, a halogen atom, or an organic group, X is an oxygen atom or a sulfur atom, Rand Rare each independently a hydrogen atom, a halogen atom, or a hydrocarbon group optionally having one or more substituents, Ris a hydrocarbon group optionally having one or more substituents; the method comprising step A of reacting a compound represented by formula (2): with a compound represented by formula (3):M(R), wherein M is a cation, n is an integer corresponding to the valence of M, and a compound represented by formula (4):R—X—H; andstep B of separating, by filtration, the compound represented by formula (5): MFfrom the mixture obtained by the above reaction.

Method for producing propionic acid derivative

An object of this invention is to provide a simple method for producing sulfur tetrafluoride. The object is achieved by a method for producing sulfur tetrafluoride, comprising step A of reacting a fluorinated halogen compound with sulfur chloride, the fluorinated halogen compound being represented by formula: XF, wherein X is chlorine, bromine, or iodine; and n is a natural number of 1 to 5.

Method for manufacturing sulfur tetrafluoride

The problem to be solved by the present invention is to provide a novel method for producing a difluoromethylene compound, in particular, a simple method for producing a difluoromethylene compound. This problem is solved by a method for producing a difluoromethylene compound (I) containing at least one &#x2014;CF&#x2014; moiety, the method comprising step A of allowing IFand a disulfide compound (III) of the formula: R&#x2014;S&#x2014;S&#x2014;R(wherein R, in each occurrence, independently represents aryl optionally having at least one substituent or alkyl optionally having at least one substituent) to act on a carbonyl compound (II) containing at least one &#x2014;C(O)&#x2014; moiety.

Method for producing difluoromethylene compound

The problem to be solved by the present invention is to provide a novel method for producing a difluoromethylene compound. This problem is solved by a method for producing a difluoromethylene compound containing a &#x2014;CF&#x2014; moiety, the method comprising step A of mixing:

Method for manufacturing difluoromethylene compound

An object of the present invention is to provide a novel substance that has a high reactivity as a fluorinating agent, is effectively used in various fluorination reactions, and is safely handled even in air. As the solution for achieving this object, the present invention provides a complex obtained by reacting bromine trifluoride with at least one metal halide selected from the group consisting of halogenated metals and halogenated hydrogen metals in a nonpolar solvent. This complex serves as a fluorinating agent that provides excellent fluorination performance and that is stable in air.

Fluorinating agent

Object: An object of the present invention is to provide a method for producing, with a high yield, a fluorinated organic compound, the fluorinated organic compound having not been produced with a sufficient yield by a conventional method for producing a fluorinated organic compound using a fluorinating agent containing IF-pyridine-HF alone. Another object of the present invention is to provide a fluorinating reagent. Means for achieving the object: A method for producing a fluorinated organic compound comprising step A of fluorinating an organic compound by bringing the organic compound into contact with (1) IF-pyridine-HF and (2) at least one additive selected from the group consisting of amine hydrogen fluorides, XF (wherein Xrepresents hydrogen, potassium, sodium, or lithium), oxidizers, and reducing agents.

Method for producing fluorinated organic compound and fluorinating reagent

An object of the present invention is to provide a production method that makes it possible to produce 1,1-dibromo-1-fluoroethane easily and sustainably. The present invention provides a method for producing 1,1-dibromo-1-fluoroethane, the method comprising step A of reacting 1,1-dibromoethylene with hydrogen fluoride to obtain 1,1-dibromo-1-fluoroethane.

Growing community of inventors

Osaka, Japan

Atsushi Shirai