Nippon Shokubai Co., Ltd.

Other

Fujisawa Pharmaceutical Company, Ltd.

Ikuyo Katsumi

Hitoshi Mitsui

Naoko Yamamoto

Yoshinari Sato

Koichi Hirota

Norimasa Okuda

Seiichiro Tabuchi

Ren Hasebe

Noboru Saitou

Kazuo Sakane

Tsunemasa Ueno

Tomoaki Tanaka

Yuichi Satoh

Disclosed are: a diaryliodonium salt mixture which is a precursor of a BFsalt or the like of a diaryliodonium compound, can be produced in the form of crystals at ambient temperature, can be purified in a simple manner, can be produced with high efficiency, and can be induced into a BFsalt or the like salt that has excellent solubility in a monomer or the like; and a process for producing the diaryliodonium salt mixture. Also disclosed is a production process which can achieve good yield and can produce reduced amounts of byproducts, and is therefore applicable to the industrial mass production of a diaryliodonium compound. The diaryliodonium salt mixture is characterized by containing at least two specific diaryliodonium salts.

Diaryliodonium salt mixture and process for production thereof, and process for production of diaryliodonium compound

Process for preparing a tetrakis(fluoroaryl) borate derivative

Benzodiazepine derivatives of the formula:

1,4-benzodiazepinones and their uses as CCK antagonists

Process for preparing fluoroaryl magnesium derivative and process for

Benzodiazepine derivatives

A method of producing naphthalenedicarboxylic acids by the oxidation of dialkyl-substituted naphthalene with a gas containing molecular oxygen in an organic solvent and in the presence of a catalyst comprising copper and bromine, or a catalyst comprising copper, bromine and at least one kind of element/compound selected from the group of consisting of amine compounds and heavy metallic elements which are vanadium, manganese, iron, nickel, palladium and cerium. And a method of producing diaryldicarboxylic acids by the oxidation of dialkyl-substituted diaryl compounds with a gas containing molecular oxygen in an organic solvent and in the presence of the same catalyst. These methods permit high yields of naphthalenedicarboxylic acids of high purity and of diaryldicarboxylic acids of high purity with the use of small amounts of catalyst.

Method of producing naphthalenedicarboxylic acids and diaryldicarboxylic

A method of producing naphthalenedicarboxylic acids by the oxidation of dialkyl-substituted naphthalene with a gas containing molecular oxygen under liquid phase conditions in an organic solvent and in the presence of a catalyst comprising copper and bromine, or a catalyst comprising copper, bromine and at least one kind of element/compound selected from the group of consisting of amine compounds and heavy metallic elements which are vanadium, manganese, iron, cobalt, nickel, palladium and cerium. And a method of producing diaryldicarboxylic acids by the oxidation of dialkyl-substituted diaryl compounds with a gas containing molecular oxygen in an organic solvent and in the presence of the same catalyst. These methods permit high yields of naphthalenedicarboxylic acids of high purity and of diaryldicarboxylic acids of high purity with the use of small amounts of catalyst.

Growing community of inventors

Osaka, Japan

Ikuyo Katsumi