Patents by Inventor Ikuyo Ikeno
Ikuyo Ikeno has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 7205441Abstract: Fluoroaryl magnesium halide is reacted with a boron compound so that a molar ratio of the fluoroaryl magnesium halide to the boron compound is not less than 3.0 and not more than 3.7, so as to produce a tetrakis (fluoroaryl) borate.magnesium compound. With this method, there occurs no hydrogen fluoride which corrodes a producing apparatus and requires troublesome waste water treatment.Type: GrantFiled: May 8, 2003Date of Patent: April 17, 2007Assignee: Nippon Shokubai Co., Ltd.Inventors: Ikuyo Ikeno, Toshimitsu Moriguchi, Hitoshi Mitsui, Toshiya Iida
-
Patent number: 6818785Abstract: After a fluoroaryl borane derivative is precipitated from a solution containing the fluoroaryl borane derivative, a bis (fluoroaryl) borane derivative, and a hydrocarbon solvent and is subjected to first filtration so that the fluoroaryl borane derivative is isolated, a filtrate that has been obtained by the first filtration is cooled and the bis (fluoroaryl) borane derivative is separated and is subjected to second filtration so that the bis (fluoroaryl) borane derivative is isolated. In a case where the solution contains fluorobenzene, the solution is concentrated, so that the fluorobenzene is removed. Thus, it is possible to provide the high-purity fluoroaryl borane derivative and bis (fluoroaryl) borane derivative having no impurity with ease and at a low cost.Type: GrantFiled: September 4, 2002Date of Patent: November 16, 2004Assignee: Nippon Shokubai Co., Ltd.Inventors: Ikuyo Ikeno, Hitoshi Mitsui, Toshiya Iida, Toshimitsu Moriguchi
-
Patent number: 6812360Abstract: Bis(fluoroaryl)borane derivative is produced by reacting tris(fluoroaryl)borane with a compound, such as water, ethanol, ammonia and the like, in a hydrocarbon solvent at a molar ratio raging from 1:0.9 to 1:1.1. It is more preferable that the reaction is carried out while the hydrocarbon solvent is distilled off. It is more preferable that hydrocarbon solvent is substantially an aliphatic hydrocarbon solvent. With this arrangement, it is possible to provide a method for producing and isolating the bis(fluoroaryl)borane derivative of a high purity, with ease and at a low cost.Type: GrantFiled: September 9, 2002Date of Patent: November 2, 2004Assignee: Nippon Shokubai Co., Ltd.Inventors: Ikuyo Ikeno, Hitoshi Mitsui, Toshiya Iida, Toshimitsu Moriguchi
-
Publication number: 20030216598Abstract: Fluoroaryl magnesium halide is reacted with a boron compound so that a molar ratio of the fluoroaryl magnesium halide to the boron compound is not less than 3.0 and not more than 3.7, so as to produce a tetrakis (fluoroaryl) borate·magnesium compound. With this method, there occurs no hydrogen fluoride which corrodes a producing apparatus and requires troublesome waste water treatment.Type: ApplicationFiled: May 8, 2003Publication date: November 20, 2003Inventors: Ikuyo Ikeno, Toshimitsu Moriguchi, Hitoshi Mitsui, Toshiya Iida
-
Patent number: 6624329Abstract: Tetrakis(fluoroaryl)borate•magnesium halide (Ar4BMgX) expressed by General Formula (1): where each of R1-R10 represents a hydrogen atom, a fluorine atom, a hydrocarbon group, or an alkoxy group, provided that at least one of R1-R5 represents a fluorine atom and at least one of R6-R10 represents a fluorine atom, X represents a chlorine atom, a bromine atom, or an iodide atom, and n represents 2 or 3, is treated with alkali metal salts of carboxylic acid and/or alkali earth metal salts of carboxylic acid. Then, a tetrakis(fluoroaryl)borate derivative (Ar4BZ) is produced by reacting treated Ar4BMgX with a compound generating monovalent cation seeds (for example, N,N-dimethylaniline•hydrochloride). Consequently, it has become possible to provide a purifying process of separating/removing impurities from Ar4BMgX readily and efficiently, and a process of producing inexpensive Ar4BX efficiently.Type: GrantFiled: December 21, 2001Date of Patent: September 23, 2003Assignee: Nippon Shokubai Co., Ltd.Inventors: Hitoshi Mitsui, Tsunemasa Ueno, Ikuyo Ikeno, Naoko Yamamoto
-
Publication number: 20030050282Abstract: After a fluoroaryl borane derivative is precipitated from a solution containing the fluoroaryl borane derivative, a bis (fluoroaryl) borane derivative, and a hydrocarbon solvent and is subjected to first filtration so that the fluoroaryl borane derivative is isolated, a filtrate that has been obtained by the first filtration is cooled and the bis (fluoroaryl) borane derivative is separated and is subjected to second filtration so that the bis (fluoroaryl) borane derivative is isolated. In a case where the solution contains fluorobenzene, the solution is concentrated, so that the fluorobenzene is removed. Thus, it is possible to provide the high-purity fluoroaryl borane derivative and bis (fluoroaryl) borane derivative having no impurity with ease and at a low cost.Type: ApplicationFiled: September 4, 2002Publication date: March 13, 2003Inventors: Ikuyo Ikeno, Hitoshi Mitsui, Toshiya Iida, Toshimitsu Moriguchi
-
Publication number: 20030045507Abstract: Bis (fluoroaryl) borane derivative is produced by reacting tris (fluoroaryl) borane with a compound, such as water, ethanol, ammonia and the like, in a hydrocarbon solvent at a molar ratio raging from 1:0.9 to 1:1.1. It is more preferable that the reaction is carried out while the hydrocarbon solvent is distilled off. It is more preferable that hydrocarbon solvent is substantially an aliphatic hydrocarbon solvent. With this arrangement, it is possible to provide a method for producing and isolating the bis (fluoroaryl) borane derivative of a high purity, with ease and at a low cost.Type: ApplicationFiled: September 9, 2002Publication date: March 6, 2003Inventors: Ikuyo Ikeno, Hitoshi Mitsui, Toshiya Iida, Toshimitsu Moriguchi
-
Patent number: 6509488Abstract: In a method for purifying a fluoroaryl metal compound of the present invention, magnesium halide is precipitated and removed from a solution containing the fluoroaryl metal compound, the magnesium halide, and an ether solvent. Or, the magnesium halide is removed by treating the solution with an acid. Examples of the method include: a method in which a solvent which has a boiling point higher than that of the ether solvent contained in the solution and which does not dissolve the magnesium halide is heated to a temperature higher than the boiling point of the ether solvent, then the ether solvent is distilled out with the solution being added to the solvent; and a method in which the solution and an aqueous solution containing an acid are mixed and stirred, then allowed to stand so as to be separated into an organic layer containing the fluoroaryl metal compound and an aqueous layer containing the magnesium halide and the acid.Type: GrantFiled: November 27, 2001Date of Patent: January 21, 2003Assignee: Nippon Shokubai Co., Ltd.Inventors: Ikuyo Ikeno, Hitoshi Mitsui, Toshiya Iida, Toshimitsu Moriguchi
-
Patent number: 6465668Abstract: A method for easily and inexpensively producing and purifying a fluoroaryl metal compound such as bis(pentafluorophenyl)dialkyltin which is less colored and has no impurities is provided. Hydrocarbon magnesium halide is reacted with fluoroaryl halide in a solvent including an ether solvent so as to obtain fluoroaryl magnesium halide, which is then reacted with an organic metal compound so as to produce a fluoroaryl metal compound. Tin is more preferable as a metal atom included in the organic metal compound. As for the ether solvent, chain ether solvents are preferable, more specifically, diisopropyl ether, dibutyl ether, and t-butylmethyl ether are more preferable. Besides, it is preferable that magnesium halide, which is a by-product of the fluoroaryl metal compound, is precipitated and removed, or treated with an acid.Type: GrantFiled: November 27, 2001Date of Patent: October 15, 2002Assignee: Nippon Shokubai Co., Ltd.Inventors: Ikuyo Ikeno, Hitoshi Mitsui, Toshiya Iida, Toshimitsu Moriguchi
-
Publication number: 20020107419Abstract: Tetrakis(fluoroaryl)borate.Type: ApplicationFiled: December 21, 2001Publication date: August 8, 2002Applicant: Nippon Shokubai Co., Ltd.Inventors: Hitoshi Mitsui, Tsunemasa Ueno, Ikuyo Ikeno, Naoko Yamamoto
-
Patent number: 6410810Abstract: A mixture of bis- and tris(fluoroaryl)borane compounds expressed by General Formula (1) below is handled in the form of a slurry made with a hydrocarbon solvent: where each of R1, R2, R3, R4 and R5 independently represents a hydrogen atom, a fluorine atom, a hydrocarbon group, or an alkoxy group provided that at least one of R1-R5 represents a fluorine atom, X represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom, and wherein n represents 2 for the bis(fluoroaryl)borane compounds and 3 for the tris(fluoroaryl)borane compounds. Then, a hydrocarbon solution of the (fluoroaryl)borane compounds having a concentration of the tris(fluoroaryl)borane compounds in a range between 1 wt % and 1 wt % is prepared by dissolving the slurry into a hydrocarbon solvent in a virtually air-tight vessel.Type: GrantFiled: February 24, 2000Date of Patent: June 25, 2002Assignee: Nippon Shokubai Co., Ltd.Inventors: Hitoshi Mitsui, Tsunemasa Ueno, Ikuyo Ikeno, Naoko Hirano
-
Publication number: 20020065426Abstract: A method for easily and inexpensively producing and purifying a fluoroaryl metal compound such as bis(pentafluorophenyl)dialkyltin which is less colored and has no impurities is provided. Hydrocarbon magnesium halide is reacted with fluoroaryl halide in a solvent including an ether solvent so as to obtain fluoroaryl magnesium halide, which is then reacted with an organic metal compound so as to produce a fluoroaryl metal compound. Tin is more preferable as a metal atom included in the organic metal compound. As for the ether solvent, chain ether solvents are preferable, more specifically, diisopropyl ether, dibutyl ether, and t-butylmethyl ether are more preferable. Besides, it is preferable that magnesium halide, which is a by-product of the fluoroaryl metal compound, is precipitated and removed, or treated with an acid.Type: ApplicationFiled: November 27, 2001Publication date: May 30, 2002Inventors: Ikuyo Ikeno, Hitoshi Mitsui, Toshiya Iida, Toshimitsu Moriguchi
-
Publication number: 20020065425Abstract: In a method for purifying a fluoroaryl metal compound of the present invention, magnesium halide is precipitated and removed from a solution containing the fluoroaryl metal compound, the magnesium halide, and an ether solvent. Or, the magnesium halide is removed by treating the solution with an acid. Examples of the method include: a method in which a solvent which has a boiling point higher than that of the ether solvent contained in the solution and which does not dissolve the magnesium halide is heated to a temperature higher than the boiling point of the ether solvent, then the ether solvent is distilled out with the solution being added to the solvent; and a method in which the solution and an aqueous solution containing an acid are mixed and stirred, then allowed to stand so as to be separated into an organic layer containing the fluoroaryl metal compound and an aqueous layer containing the magnesium halide and the acid.Type: ApplicationFiled: November 27, 2001Publication date: May 30, 2002Inventors: Ikuyo Ikeno, Hitoshi Mitsui, Toshiya Iida, Toshimitsu Moriguchi
-
Patent number: 6380435Abstract: Tetrakis (fluoroaryl)borate.magnesium halide (Ar4BMgX) expressed by General Formula (1): where each of R1-R10 represents a hydrogen atom, a fluorine atom, a hydrocarbon group, or an alkoxy group, provided that at least one of R1-R5 represents a fluorine atom and at least one of R6-R10 represents a fluorine atom, X represents a chlorine atom, a bromine atom, or an iodide atom, and n represents 2 or 3, is treated with alkali metal salts of carboxylic acid and/or alkali earth metal salts of carboxylic acid. Then, a tetrakis(fluoroaryl)borate derivative (Ar4BZ) is produced by reacting treated Ar4BMgX with a compound generating monovalent cation seeds (for example, N,N-dimethylaniline.hydrochloride). Consequently, it has become possible to provide a purifying process of separating/removing impurities from Ar4BMgX readily and efficiently, and a process of producing inexpensive Ar4BX efficiently.Type: GrantFiled: February 9, 2001Date of Patent: April 30, 2002Assignee: Nippon Shokubai Co., Ltd.Inventors: Hitoshi Mitsui, Tsunemasa Ueno, Ikuyo Ikeno, Naoko Yamamoto
-
Patent number: 6281389Abstract: A solution containing an organic solvent and a compound including impurities, represented by, for example, general formula (1) (wherein R1 to R10 independently represent H, F, a hydrocarbon group or an alkoxy group, at least one of R1 to R5 is F, at least one of R6 to R10 is F, M is H, alkali metal, alkaline earth metal or alkaline earth metal halide, n is 3 or 4, and m is 2 when M is an alkaline earth metal, or m is 1 when M is the other) is mixed with water. The purified compound is reacted with a compound which forms a monovalent cation seed to prepare a derivative. Thus, a purifying method capable of efficiently and easily separating and removing colored components contained in tetrakis(fluoroaryl)borate compounds can be provided. Moreover, it is possible to provide a method capable of preparing a highly-pure tetrakis(fluoroaryl)borate derivative efficiently and at low costs.Type: GrantFiled: September 7, 1999Date of Patent: August 28, 2001Assignee: Nippon Shokubai Co., Ltd.Inventors: Hitoshi Mitsui, Toshiya Iida, Ikuyo Ikeno, Naoko Hirano, Yukiko Ariyoshi
-
Publication number: 20010014739Abstract: Tetrakis(fluoroaryl)borate•magnesium halide (Ar4BMgX) expressed by General Formula (1): 1Type: ApplicationFiled: February 9, 2001Publication date: August 16, 2001Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Hitoshi Mitsui, Tsunemasa Ueno, Ikuyo Ikeno, Naoko Yamamoto
-
Patent number: 6235222Abstract: In order to provide a method of safely, efficiently, and industrially manufacturing fluoroaryl magnesium halide containing no impurities, such as coloring components, by a relatively gradual reaction compared with the conventional reactions, and a method of readily and efficiently manufacturing a highly-pure fluoroaryl borane derivative, fluoroaryl magnesium halide expressed by General Formula (1): where each of R1-R5 independently represents H, F, a hydrocarbon group, or an alkoxy group, provided that at least three of R1-R5 are fluorine atoms, and Xa represents Cl, Br, or I; is manufactured by reacting, in a solvent containing a chain ether solvent, hydrocarbon magnesium halide expressed by General Formula (2): R6MgXa (2) where R6 represents a hydrocarbon group, and Xa represents Cl, Br, or I; with fluoroaryl halide expressed by General Formula (3): where each of R1-R5 independently represents H, F, a hydrocarbon group, or an alkoxy group, provided that atType: GrantFiled: October 22, 1999Date of Patent: May 22, 2001Assignee: Nippon Shokubai Co., Ltd.Inventors: Hitoshi Mitsui, Toshiya Iida, Ikuyo Ikeno, Naoko Hirano, Yukiko Ariyoshi
-
Patent number: 6215025Abstract: Tetrakis(fluoroaryl)borate.magnesium halide (Ar4BMgX) expressed by General Formula (1): where each of R1-R10 represents a hydrogen atom, a fluorine atom, a hydrocarbon group, or an alkoxy group, provided that at least one of R1-R5 represents a fluorine atom and at least one of R6-R10 represents a fluorine atom, X represents a chlorine atom, a bromine atom, or an iodide atom, and n represents 2 or 3, is treated with alkali metal salts of carboxylic acid and/or alkali earth metal salts of carboxylic acid. Then, a tetrakis(fluoroaryl)borate derivative (Ar4BZ) is produced by reacting treated Ar4BMgX with a compound generating monovalent cation seeds (for example, N,N-dimethylaniline.hydrochloride). Consequently, it has become possible to provide a purifying process of separating/removing impurities from Ar4BMgX readily and efficiently, and a process of producing inexpensive Ar4BX efficiently.Type: GrantFiled: October 26, 1998Date of Patent: April 10, 2001Assignee: Nippon Shokubai Co., Ltd.Inventors: Hitoshi Mitsui, Tsunemasa Ueno, Ikuyo Ikeno, Naoko Yamamoto
-
Patent number: 6118026Abstract: A (fluoroaryl)borane compound expressed by General Formula (1): ##STR1## where each of R.sub.1 -R.sub.5 represents a hydrogen atom, a fluorine atom, a hydrocarbon group, or an alkoxy group, provided that at least one of R.sub.1 -R.sub.5 represents a fluorine atom, X represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom, and n represents 2 or 3, is stabilized by letting inorganic metal salts having a fluorine atom coexist with the (fluoroaryl)borane compound in a hydrocarbon solution. After the hydrocarbon solution is concentrated in the presence of the inorganic metal salts, the inorganic metal salts are removed and the fluoroaryl)borane compound is crystallized.Type: GrantFiled: June 25, 1998Date of Patent: September 12, 2000Assignee: Nippon Shokubai Co., Ltd.Inventors: Hitoshi Mitsui, Tsunemasa Ueno, Ikuyo Ikeno, Naoko Yamamoto