Kuraray Co., Ltd.

Other

Daiichi Pharmaceutical Co., Ltd.

Daiichi Sankyo Company, Limited

Katsuji Ujita

Takashi Fukumoto

Shiro Terashima

Toshiki Mori

Junko Sato

Takuo Tsuruta

Tomoya Kuwayama

Takashi Sugioka

Kazuya Shimizu

Naoki Fujiwara

Yoshin Tamai

Keisuke Morikawa

Koichi Kanehira

Naoshi Nakagawa

Yusuke Amano

Tatsuhiko Hayashibara

Daiki Noguchi

Toshifumi Akiba

Keiji Kubo

Naoya Minamoto

Kenichi Koyakumaru

Tatsuru Saito

Takuma Kaneshima

Kozo Nakao

Kensuke Nagashima

Keisuke Saeki

Akihiro Ishiwata

Shingo Ueyama

Nobusuke Kashiki

The present invention relates to a method for producing a hydrocarbon, including a step (Y) of converting a reaction product of at least one sulfur compound selected from the group consisting of hydrogen sulfide and a compound containing a &#x2014;SH group which are contained in a hydrocarbon with an &#x3b1;,&#x3b2;-unsaturated aldehyde compound into a water-soluble compound in the presence of water, and a step (Z) of separating oil and water.

Method for hydrocarbon production, purification method, and purifier

Provided is an unsaturated double bond-containing compound capable of sufficiently advancing a crosslinking reaction or a curing reaction when used for a coating material or the like and having oxygen absorption performance. The present invention also provides an oxygen absorbent containing the unsaturated double bond-containing compound and a resin composition containing the same. Provided are an unsaturated double bond-containing compound represented by general formula (I), an oxygen absorbent containing the same, and a resin composition.

Compound containing unsaturated double bond, oxygen absorber comprising same, and resin composition

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

The present invention provides a vinyl alcohol polymer having a mercapto group and having excellent reactivity. The present invention is a side-chain mercapto group-containing vinyl alcohol polymer including vinyl alcohol units and structural units represented by the following formula (I) (the characters in the formula are as defined in the description): 

Vinyl alcohol polymer, method for producing same, and composition and coating agent containing vinyl alcohol polymer

A decarboxylation reaction of a (3-methyl-3-butenyl)malonic acid dialkyl ester, carried out by heating in the presence of water and a base, produces an alkyl 5-methyl-5-hexenoate. The decarboxylation reaction produces the alkyl 5-methyl-5-hexenoate inexpensively and effectively. The base can optionally be a tertiary amine compound or a heterocyclic amine compound. Producing the alkyl 5-methyl-5-hexenoate can optionally further include removing an alcohol.

Method for producing alkyl 5-methyl-5-hexenoate

[Problem] The present invention provides an industrially advantageous production method of a 6-halogeno-3-arylpyridine derivative in which cryogenic condition is not required, production step is short, and an isomer difficult to be separated is not produced as a by-product, [Solution] A production method of a 6-halogeno-3-arylpyridine derivative represented by the general formula (III) comprising: the first step reacting a 2,5-dihalogenopyridine derivative represented by the general formula (I) with a magnesiation reagent; and the second step reacting the product obtained from the above-described first step, in the presence of a palladium compound, with a halogenoaryl derivative represented by the general formula (II).

Production method of 6-halogeno-3-arylpyridine derivative

Provided is a method capable of solving the problems associated with production of LVSA, which is a pheromone produced by female pest mealybugs, and is useful as an agrochemical pest, at an industrial large scale, and producing LVSA in a high yield. Specifically, the present invention provides a production method of 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate, comprising reacting senecioic acid with a halogenating agent to give senecioic acid halide, reacting the obtained senecioic acid halide with 2-isopropenyl-5-methyl-4-hexen-1-ol in the presence of an organic base compound and heat treating the obtained crude 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate in the presence of a basic substance at 50-250&#xb0; C.

Process for producing 2-isopropenyl-5-methyl-4-hexene-1-yl-3-methyl-2-butenoate

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 of industrially advantageously producing a cyclopropane monoacetal derivative represented by the formula (III) conveniently and also in a fewer steps by reacting a halogenated unsaturated carbonyl compound represented by the formula (II) with an alcoholate. wherein each symbol is as defined in the specification.

Process for producing cyclopropane monoacetal derivative and intermediate therefor

A process for preparation of cyclopropylethanol, which comprises subjecting a 3-cyclopropyl-2,3-epoxypropionic acid ester to solvolysis, treating the product of the solvolysis with an acid to obtain cyclopropylacetaldehyde, and reducing the obtained cyclopropylacetaldehyde; and a process for preparation of cyclopropylacetonitrile, which comprises subjecting a 3-cyclopropyl-2,3-epoxypropionic acid ester to solvolysis in the presence of a base, treating the product of the solvolysis with an acid to obtain cyclopropylacetaldehyde, reacting the obtained cyclopropylacetaldehyde with hydroxylamine or salts thereof to obtain cyclopropaneacetaldehyde oxime, and reacting the obtained cyclopropaneacetaldehyde oxime with acetic anhydride. According to the present invention, cyclopropylethanol and cyclopropylacetonitrile can be prepared at low costs and industrially advantageously.

Processes for preparation of cyclopropylethanol, cyclopropylacetonitorile and intermediates of both

Process for the production of 5-oxy-7-oxabicyclo &lsqb;4.1.0&rsqb; hept-3-ene-3-carboxylic acid esters

The present invention provides a method of producing 7-azabicyclo&lsqb;4.1.0&rsqb;hept-3-ene-3-carboxylic acid ester (VII) economically, industrially advantageously and efficiently in a large amount. The present invention relates to a production method of compound (VII), which includes reacting epoxide (I) with amine (II) to give aminodiol (III), reacting the aminodiol (III) with a sulfonylating agent in the presence of a base to give azabicyclohept-2-ene (IV), reacting the azabicyclohept-2-ene (IV) with alcohol (V) in the presence of a Lewis acid to give azabicyclohept-3-ene (VI), and eliminating the 7-position substituent R from the azabicyclohept-3-ene (VI)

Process for the preparation of 7-azabicyclo&lsqb;4.1.0&rsqb;hept-3-ene-3-carboxylic acid esters

Process for preparation of 7-oxabicyclo&lsqb;2.2.1&rsqb;hept-5-ene-2-carboxylic acid derivatives

A process for producing 2,4-dihydroxyacetophenone is provided wherein resorcinol and acetic acid are reacted in the presence of a proton acid catalyst while removing formed water.

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Tainai, Japan

Katsuji Ujita