Abstract: Disclosed are: a diaryliodonium salt mixture which is a precursor of a BF4 salt 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 BF4 salt 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.

Abstract: Disclosed are: a diaryliodonium salt mixture which is a precursor of a BF4 salt 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 BF4 salt 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.

Abstract: A method for stabilizing an aryl boron compound of formula (1): wherein Ar1, Ar2, and Ar3 are aryl groups, including mixing a compound which has higher affinity for the aryl boron compound than water, as a stabilizer, in a solution or slurry containing the aryl boron compound in a hydrocarbon solvent; and a stabilized composition obtained thereby. The stabilizing method and the stabilized composition of the present invention make it possible to store aryl boron compounds stably over a long term, while keeping their high purity, in the form of forming a substantially homogeneous system in the case of a solution or in the form of forming a substantially homogeneous system by heating in the case of slurry.

Abstract: A fluoroaryl magnesium derivative expressed by General Formula (1): where each of R1-R5 represents a hydrogen atom, a fluorine atom, a hydrocarbon group, or an alkoxy group while at least one of R1-R5 representing a fluorine atom, and Xa represents a chlorine atom, a bromine atom, or an iodine atom; and boron halide expressed by General Formula (2): BXb3  (2)  where Xb represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom, are reacted with each other in a solvent (a) containing diethyl ether and/or tetrahydrofuran, after which the resulting reaction solution is added to a solvent (b) having a higher boiling point than diethyl ether and/or tetrahydrofuran while diethyl ether and/or tetrahydrofuran are distilled out.

Abstract: Benzodiazepine derivatives of the formula: 1

Abstract: Benzodiazepine derivatives of the formula: 1

Abstract: Benzodiazepine derivatives of the formula: wherein R2 is alkyl or cycloalkyl-alkyl when R4 is hydrogen, or R2 is a variety of specified groups when R4 is alkyl, halogen or dialkylamino, are useful as cholecystokinin antagonists.

Abstract: A fluoroaryl magnesium derivative is produced by reacting aryl fluoride, hydrocarbon halide, and magnesium with one another in an ether solvent or a mixed solvent of the ether solvent and a hydrocarbon solvent. Also, a (fluoroaryl)borane compound is produced by mixing both a solution prepared by dissolving the fluoroaryl magnesium derivative into the ether solvent and another solvent prepared by dissolving the boron halide in the ether solvent with a hydrocarbon solvent having a higher boiling point than the ether solvent, so that the fluoroaryl magnesium derivative and boron halide react with each other while the ether solvent is being distilled out.

Abstract: Benzodiazepine derivatives of formula (I) wherein R.sup.1 is aryl which may have one or more suitable substituent(s), R.sup.2 is C.sub.3 -C.sub.8 cycloalkyl which may have one or more suitable substituent(s), A is lower alkylene, R.sup.3 is a heterocyclic group selected from the group consisting of tetrahydrofuryl, dioxolanyl, filryl, thienyl, isoxazolyl, pyridyl, benzimidazolyl, benzotiazolyl, benzoxazolyl, benzopyrany, quinolyl, isoquinolyl, tetrahydroisoquinolyl, benzothienyl and benzofuryl, each of which may have one or more suitable substituent(s), or a pharmaceutically acceptable salt thereof, which are useful as a medicament.

Abstract: 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.

Abstract: 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.