Kuraray Co., Ltd.

Junko Sato

Yoshin Tamai

Koichi Kanehira

Masahiro Torihara

Takashi Fukumoto

Chikara Kaneko

Nobuya Katagiri

Katsuji Ujita

Osamu Nakayama

Tatsuhiko Hayashibara

Hiroyuki Monoe

Toshiki Mori

Takuo Tsuruta

Takashi Sugioka

Kozo Nakao

Eriko Matsuda

There is provided a composition containing one or more basic compounds selected from the group consisting of tertiary amines, nitrogen-containing heterocyclic aromatic compounds, alkali metal carbonate salts, alkaline earth metal carbonate salts and alkali metal hydrogencarbonate salts, and a homoallyl halide.

Homoallyl halide composition and method for storing homoallyl halide

Provided is a method of producing lavandulal at a high yield by controlling formation of its isomer of lavandulal as a by-product. In a method of producing lavandulal by making an acetal compound represented by the following formula (I) react with 3-methyl-1-butene-3-ol in the presence of an acid catalyst, the method includes: adding, to a liquid mixture comprising an acid catalyst, an acetal compound represented by the following formula (I), and 3-methyl-1-butene-3-ol in at least a portion of an amount to be used (3-methyl-1-butene-3-ol (a)), 3-methyl-1-butene-3-ol in the other portion of the amount to be used (3-methyl-1-butene-3-ol (b)); and maintaining the liquid mixture at a temperature of 110&#xb0; C. or higher: in which Each R in the formula (I) represents an alkyl group.

Method for producing lavandulal

Provided are a polymerizable compound shown below which is useful as a raw material for a polymer having less swelling in developing, a polymer obtained by polymerizing a raw material containing the above polymerizable compound, a photoresist composition which contains the above polymer and which is improved in LWR and an efficient production process for the polymerizable compound described above: 

(Meth)acrylate derivative, intermediate thereof, and polymer compound

An acrylate derivative represented by the following general formula (1): (in the formula, Rrepresents a hydrogen atom, a methyl group or a trifluoromethyl group; each of R, R, R, R, R, Rand Rindependently represents a hydrogen atom, an alkyl group, a cycloalkyl group or an alkoxy group; each of Rand Rindependently represents a hydrogen atom, an alkyl group, a cycloalkyl group or an alkoxy group, or Rand Rare bonded to each other to represent an alkylene group, &#x2014;O&#x2014; or &#x2014;S&#x2014;; n represents 0, 1 or 2; and W represents an alkylene group or a cycloalkylene group); an intermediate thereof; a method for producing the same; a polymer compound which is obtainable from polymerization of a raw material containing the foregoing acrylate derivative and which is excellent in solubility in an organic solvent used for the preparation of a photoresist composition; and a photoresist composition containing the polymer compound, an organic solvent and a photo acid generator and having excellent adhesion to substrate and less pattern collapse, are provided.

Acrylate derivative, haloester derivative, polymer compound and photoresist composition

The present invention provides a method of producing 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate industrially advantageously in a high yield. More particularly, the present invention provides a method of producing 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate represented by the following formula (IV): which comprises reacting 2-isopropenyl-5-methyl-4-hexen-1-ol with an organic sulfonyl halide in the presence of a basic substance to give a sulfonate compound represented by the following formula (III): wherein R is a hydrocarbon group, and reacting the obtained sulfonate compound with senecionic acid in the presence of a basic substance.

Method for producing 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate

A method for producing a chroman-carboxylic acid is provided, which method includes reacting a dialkylphenol compound, a formaldehyde and an alcohol in the presence of a secondary amine and an acid to give an alkoxymethylated phenol compound (Step 1); reacting the obtained alkoxymethylated phenol compound with an ester having a carbon-carbon double bond at a temperature of not less than 100&deg; C. to give a dialkylchroman carboxylic acid ester (Step 2); hydrolyzing the obtained dialkylchroman carboxylic acid ester to give a dialkylchroman-carboxylic acid (Step 3); and reacting the obtained dialkylchroman-carboxylic acid with an aromatic hydrocarbon in the presence of a Lewis acid (Step 4).

Method for producing chroman-carboxylic acid

A process for producing cyclopropanecarbonitrile involves reacting cyclopropanecarbaldoxime with acetic anhydride to obtain a mixture containing acetic acid and cyclopropanecarbonitrile. The acetic acid can be removed from the mixture through azeotropic distillation of acetic acid with a solvent that forms with acetic acid an azeotropic mixture having an azeotropic point lower than the boiling point of the cyclopropanecarbonitrile.

Process for producing cyclopropanecarbonitrile

Cyclopentenecarboxamide derivative, method for preparing the same and bicycloamide derivative used therein

Cyclopentenecarboxamide derivative, method for preparing the same bicycloamide derivative used therein

A process for producing chromans, comprising reacting a phenol, a formaldehyde and an alcohol in the presence of a secondary amine and an acid, to generate an alkoxymethylphenol compound with the ortho position to the phenolic hydroxyl group substituted with an alkoxymethyl group, and reacting the alkoxymethylphenol compound with an unsaturated compound having a carbon-carbon double bond.

Process for producing chromans

A process for producing chromans, comprising reacting a phenol, a formaldehyde and an alcohol in the presence of a secondary amine and an acid, to generate an alkoxymethylphenol compound with the ortho position to the phenolic hydroxyl group substituted with an alkoxymethyl group, and reacting the alkoxymethylphenol compound with an unsaturated compound having a carbon--carbon double bond.

A cyclopentenecarboxamide derivative represented by the formula (I): ##STR1## and a method for preparing the cyclopentencarboxamide derivative. A bicycloamide derivative represented by the formula (II): ##STR2## and a method for preparing the bicycloamide derivative.

Cyclopentenecarboxamide derivative, method for preparing the same and

A process for producing geranylgeraniol is provided, which comprising the steps of subjecting a mixture of at least one ester derivative wherein one or more carbon-carbon double bonds in the molecule are in cis form represented by the general formula (1): ##STR1## wherein R represents an aromatic group which can be substituted with at least one substituent, or a higher aliphatic group having from 7 to 25 carbon atoms, and wavy lines, respectively, represent a state where each carbon-carbon double bond can be present in cis or trans form, and an ester derivative of the general formula (2): ##STR2## wherein R is as defined above, to crystallization to obtain the ester derivative of the formula (2) selectively, and hydrolyzing the thus obtained ester derivative.

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Tainai, Japan

Junko Sato