Mitsubishi Gas Chemical Company, Inc.

Atsushi Okamoto

Umi Yokobori

Eriko Kushida

Hideyuki Sato

Kyoko Kimura

Yoshiaki Yamamoto

Shuji Ebata

Mikio Yoneoka

Masaki Takemoto

Toshio Watanabe

Taketo Ikeno

Kenji Nakamura

Shiro Kajiyama

Tetsuya Shimo

Futoshi Ikoma

Kyoko Hiraoka

Wataru Hamajima

Kazunari Yamamoto

A method for producing an α-acyloxycarboxylic acid ester of Formula (1) is described. The method involves reacting an α-hydroxycarboxylic acid ester compound with an acylating agent in the presence of a catalyst comprising an iron halide compound. Rrepresents a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, or a tert-butyl group, Rand Reach independently represent a methyl group or an ethyl group, and Rrepresents a linear, branched, or cyclic alkyl group having from 1 to 6 carbon atoms.

Method for producing alpha-acyloxycarboxylic acid ester

A compound, represented by Formula (1): wherein, in Formula (1), R represents a linear, branched, or cyclic alkyl group having 1 to 4 carbon atoms.

Isobutyric acid ester compound having n-butyryloxy at α-position, perfume composition, and use as perfume

A fragrance composition comprising a compound represented by Formula (1) as an active ingredient: wherein, in Formula (1), Rrepresents a linear, branched, or cyclic alkyl group having 1 to 6 carbon atoms.

Isobutyric ester compound having formyloxy group at &#x3b1;-position, fragrance composition, and use thereof as fragrance

A fragrance composition comprising a compound represented by Formula (1) as an active ingredient:  wherein, in Formula (1), Rrepresents a linear, branched, or cyclic alkyl group having 1 to 5 carbon atoms.

Isobutyric ester compound having propanoyloxy group at alpha-position, fragrance composition, and use thereof as fragrance

A fragrance composition comprising a compound represented by Formula (1): wherein, in Formula (1), R represents a linear or branched alkyl group having from 2 to 3 carbon atoms or a cyclic alkyl group having from 3 to 6 carbon atoms. 

Fragrance composition containing alpha-methoxyisobutyric ester compound, and use thereof as fragrance

A fragrance composition comprising a compound represented by Formula (1): wherein, in Formula (1), R represents a linear, branched, or cyclic alkyl group having 2 to 6 carbon atoms. 

&#x3b1;-hydroxyisobutyrate ester compound, fragrance composition, and use thereof as fragrance

A compound, represented by Formula (1): where X represents an isopropyl group or a t-butyl group, and R represents a linear, branched, or cyclic alkyl group having 1 to 5 carbon atoms; provided that one where X is an isopropyl group, and R is a t-butyl group is excluded. 

Isobutyric ester compound having butyryloxy group or pivaloyloxy group at &#x3b1;-position and fragrance composition

A fragrance composition comprising a compound represented by Formula (1) as an active ingredient: 

Isobutyric ester compound having acetoxy group at alpha-position, fragrance composition, and use thereof as fragrance

Provided is a diol that excels in thermal stability; and, a method for manufacturing a diol, a di(meth)acrylate, and a method for manufacturing a di(meth)acrylate. The diol represented by the formula (1) below; wherein each of Rand Rindependently represents a hydrocarbon group; and each Rindependently represents a hydrogen atom, hetero atom-containing group, halogen atom, straight chain alkyl group having 1 to 6 carbon atoms, branched alkyl group having 3 to 6 carbon atoms or, aryl group-containing group having 6 to 12 carbon atoms. 

Diol, method for manufacturing diol, di(meth)acrylate, and method for manufacturing di(meth)acrylate

A polyether diol compound represented by the following formula (3): where R, R, Rand R, which may be the same as or different from each other, each represent a linear or branched alkyl group having 1 to 6 carbon atoms.

Polyether diol and method for producing the same

A method for producing a polyether diol includes the step of subjecting a compound represented by the following general formula (1) to hydrogenation reduction in the presence of a hydrogenation catalyst to provide a specific polyether diol. 

A method for producing a polyol-ether compound, wherein a compound represented by the following formula (1) is subjected to hydrogenation reduction in the presence of a hydrogenation catalyst to obtain a polyol-ether compound having a skeleton represented by the following formula (2): wherein Rand R, which may be the same as or different from each other, each represent a linear or branched alkyl group having 1 to 6 carbon atoms; and Rrepresents a linear or branched alkyl group having 1 to 6 carbon atoms or a hydroxymethyl group.

Polyol-ether compound and method for producing the same

An object of the present invention is to provide a catalyst exhibiting excellent performance particularly in partial oxidation reaction. Another object is to provide a method for efficiently producing carboxylic acid or carboxylic anhydride through vapor-phase partial oxidation of an organic compound by use of an oxygen-containing gas in the presence of the catalyst. The catalyst contains (1) diamond; (2) at least one species selected from among Group 5 transition element oxides, collectively called oxide A; and (3) at least one species selected from among Group 4 transition element oxides, collectively called oxide B. The method for producing a carboxylic acid or a carboxylic anhydride includes subjecting an organic compound to vapor phase partial oxidation by use of an oxygen-containing gas in the presence of the catalyst, wherein the organic compound is an aromatic compound having one or more substituents in a molecule thereof, the substituents each including a carbon atom bonded to an aromatic ring.

Catalyst and method for producing carboxylic acid and/or carboxylic anhydride in the presence of the catalyst

An aromatic dinitrile compound is hydrogenated in an amide solvent in the presence of a solid catalyst and in the absence of ammonia to produce an aromatic ring-containing amino compound by reducing at least one cyano group to aminomethyl group. The solid catalyst is a supported palladium catalyst in which palladium is substantially present on the outer surface of carrier and in a surface layer within a depth of 200 &#x3bc;m from the outer surface. Using such a solid catalyst, the aromatic dinitrile compound is efficiently hydrogenated to the aromatic ring-containing amino compound under mild conditions.

Production of aromatic ring-containing amino compounds and catalysts

There are herein disclosed a method for heat recovery and heat utilization by the use of chemical energy which comprises the steps of doing the heat recovery by the following formula (I), and doing the heat utilization by the following formula (I'):

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Niigata, Japan

Atsushi Okamoto