Toray Fine Chemicals Co., Ltd.
|Toray Fine Chemicals Co., Ltd. Patent applications|
|Patent application number||Title||Published|
|20160016885||METHOD OF PRODUCING OPTICALLY ACTIVE TRANS-1,2-DIAMINOCYCLOHEXANE - A method produces optically active trans-1,2-diaminocyclohexane, in which a crystal of optically active trans-1,2-diaminocyclohexane is obtained by crystallization from a solution of optically active trans-1,2-diaminocyclohexane. Optically active trans-1,2-diaminocyclohexane with high purity is obtained in a favorable yield from a solution of optically active trans-1,2-diaminocyclohexane. The optically active trans-1,2-diaminocyclohexane with high purity is useful as a raw material for a large number of medicines.||01-21-2016|
|20140163150||HALOGEN-TERMINATED SULFER-CONTAINING POLYMER - A halogen-terminated sulfur-containing polymer is represented by:||06-12-2014|
|20130012730||HIGH-PURITY EPOXY COMPOUND AND METHOD OF PRODUCING THEREOF - An epoxy compound of high-purity N,N,N′,N′-tetraglycidyl-3,4′-diaminodiphenyl ether is produced by: an addition reaction step of reacting 3,4′-diaminodiphenyl ether with epichloro-hydrin in a polar protic solvent at 65 to 100° C. for||01-10-2013|
|20110040111||EPOXY COMPOUND AND MANUFACTURING METHOD THEREOF - A novel epoxy compound represented by the following formula and a method for producing the same are provided:||02-17-2011|
|20100267966||OPTICALLY ACTIVE 3-AMINOPYRROLIDINE SALT, PROCESS FOR PRODUCTION THEREOF, AND METHOD FOR OPTICAL RESOLUTION OF 3-AMINOPYRROLIDINE - An optically active 3-aminopyrrolidine (3AP) salt has a high optical purity which is useful as an intermediate in an industrial production method of an optically active 3AP, an efficient method for producing it, and an efficient industrial method for optical resolution of 3AP. Optical resolution of 3AP is efficiently carried out by reacting racemic 3AP with optically active 2-methoxyphenylacetic acid in the presence of a mineral acid such as hydrochloric acid in an aqueous solvent, followed by separation of the resulting diastereomer salt constituted by 1 mole of optically active 3AP and 2 moles of optically active 2-methoxyphenylacetic acid.||10-21-2010|
|20100230634||METHOD FOR PRODUCING BIPHENYL DERIVATIVE - A method produces a biphenyl derivative, with an industrially high yield and excellent productivity, by use of a raw material which is low in cost and toxicity. The method for producing the biphenyl derivative represented by Formula (1) is characterized in that a chlorine atom in a benzene derivative represented by Formula (2) reacts with magnesium metal to convert the benzene derivative into a Grignard reagent, and then the Grignard reagent is subjected to a coupling reaction in the presence of a catalyst and a dichloropropane:||09-16-2010|
|20100185012||METHOD FOR PRODUCING OPTICALLY ACTIVE TRANS-2-AMINOCYCLOHEXANOL AND INTERMEDIATE OF OPTICALLY ACTIVE TRANS-2-AMINOCYCLOHEXANOL - A method of producing optically active trans-2-aminocyclohexanol includes allowing racemic trans-2-aminocyclohexanol to react with optically active 2-methoxyphenylacetic acid to produce an optically active 2-methoxyphenylacetic acid salt of optically active trans-2-aminocyclohexanol and separating the salt. An optically active 2-methoxyphenylacetic acid salt of optically active trans-2-aminocyclohexanol is also provided. The method makes it possible to produce optically active trans-2-aminocyclohexanol with ease and a high yield from an industrially-advantageous, inexpensive raw material.||07-22-2010|
|20100036167||PROCESS FOR PRODUCTION OF 2,2'-BIS(TRIFLUOROMETHYL)-4,4'-DIAMINOBIPHENYL - A method produces 2,2′-bis(trifluoromethyl)-4,4′-diaminobiphenyl, wherein 2,2′-bis(trifluoromethyl)biphenyl is produced from o-chlorobenzotrifluoride, further, 2,2′-bis(trifluoromethyl)biphenyl is dinitrated in 1,2-dichloropropane solution, and 2,2′-bis(trifluoromethyl)-4,4′-dinitrobiphenyl is isolated and reduced. The method for producing of 2,2′-bis(trifluoromethyl)-4,4′-diaminobiphenyl is an industrially excellent method for producing with high safety and high production efficiency.||02-11-2010|
|20080319238||Process for Production of Biphenyl Derivatives - A process for producing biphenyl derivatives represented by formula (1), including reacting a chlorine atom of a benzene derivative represented by formula (2) with metallic magnesium to form a Grignard reagent, and coupling two molecules of the Grignard reagent with each other in the presence of a catalyst.||12-25-2008|
Patent applications by Toray Fine Chemicals Co., Ltd.