Kuraray Co., Ltd.

Kurarayco., Ltd.

Ryosuke Shimizu

Takahiro Hosono

Takuo Tsuruta

Naoya Minamoto

Junichi Fuji

Ichihiro Aratani

Yusuke Murata

Satoshi Wakai

Ryo Kouchi

Mitsumasa Kaneko

A method for producing a cyclic ether represented by formula (2) includes reacting a 2-hydroxy cyclic ether, represented by formula (1), with hydrogen in the presence of a catalyst.

Method for producing cyclic ether

A method of producing a bis-acyloxylated exomethylene compound represented by general formula (III), including reacting a monoacyloxylated exomethylene compound represented by general formula (I), a carboxylic acid represented by general formula (II), and oxygen in a liquid phase in the presence of a catalyst and optionally a solvent: 

Method for producing bis-acyloxylated exomethylene compound

An object of the present invention is to provide a biological corrosion inhibitor for a metal, which exhibits the effect at a low concentration and is superior in biodegradability. A biological corrosion inhibitor for a metal including 3-methylglutaraldehyde as an effective ingredient is provided.

Biological corrosion inhibitor for metals

Provided are a method for producing 3-methylglutaraldehyde in a good yield under a mild condition and a novel acetal compound which is useful for carrying out the foregoing method. The method is a production method of 3-methylglutaraldehyde including a step of hydrolyzing a compound represented by the following general formula (1): wherein Rand Reach independently represent an alkyl group having 1 to 6 carbon atoms, or are mutually coupled to represent an alkylene group having 2 to 6 carbon atoms.

Method for producing aldehyde compound, and acetal compound

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Kamisu, Japan

Ryosuke Shimizu