Daikin Industries, Ltd.

Manaho Miyazaki

Yosuke Kishikawa

Akihiro Gotou

Sumi Ishihara

Tatsuya Ohtsuka

Takashi Namikawa

Makoto Matsuura

Asako Yoshiyama

Tomohito Hamada

An object of the present invention is to provide a method for stabilizing an acrylic acid derivative, and a composition containing an acrylic acid derivative in which the acrylic acid derivative is stabilized. The present invention provides a composition comprising: (A) an acrylic acid derivative represented by Formula (I): (wherein Rrepresents alkyl, fluoroalkyl, aryl that may have one or more substituents, or hydrogen; and X represents fluorine, alkyl, perfluoroalkyl, or hydrogen); and (B) aldehyde, wherein the content of acrylic acid derivative (A) is 30% (w/w) or more.

Composition

An object of the present invention is to provide a process for producing &#x3b1;-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein Rand Rare the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and Rrepresents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3):R&#x2014;OH&#x2003;&#x2003;(3)wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).

Production method for alpha-fluoro acrylic acid esters

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Osaka, Japan

Manaho Miyazaki