Patents by Inventor Satoru Ujita
Satoru Ujita 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).
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Patent number: 9822085Abstract: A tetrazolinone compound represented by formula (1): [in the formula, R1 represents an alkyl group having 1-6 carbon atoms or the like] can be produced by reacting a compound represented by formula (2): [in the formula, X1 represents a bromine atom or the like, and R1 represents an alkyl group having 1-6 carbon atoms or the like] with a compound represented by formula (A): R—Mg—X??(A) [in the formula, R represents an alkyl group having 1-6 carbon atoms or the like, and X1 represents a bromine atom or the like] to provide a compound represented by formula (3): [in the formula, X2 represents a chlorine atom or the like] and reacting the compound represented by formula (3) with formaldehyde or a compound represented by formula (4): [in the formula, R6 represents an alkyl group having 1-6 carbon atoms or the like, and X3 represents a chlorine atom, bromine atom or iodine atom].Type: GrantFiled: March 3, 2015Date of Patent: November 21, 2017Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoru Ujita, Takayuki Shioda
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Patent number: 9815768Abstract: Position-1 halogen can be selectively reduced by reacting a compound represented by formula (3): [wherein X represents a chlorine atom, a bromine atom, or an iodine atom] with halogen in the presence of a heterogeneous transition metal catalyst to produce 2-(halogenomethyl)-1-methyl-3-nitrobenzene represented by formula (1): [wherein the symbol is as defined above].Type: GrantFiled: February 16, 2015Date of Patent: November 14, 2017Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoru Ujita, Takashi Miyamoto
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Patent number: 9796678Abstract: The present invention provides a method for manufacturing an optically active compound of formula (2), which contains bringing hydrogen into contact with a compound of formula (1) in the presence of a transition metal catalyst having an optically active ligand. In the formula, R1 represents a hydrogen atom or an acetyl group, R2, R3, R4, and R5 each independently represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a hydroxy group, a nitro group, an amino group, or an acyl group, R6 represents an alkyl group, R7 and R8 each independently represents a hydrogen atom or an alkyl group, and a carbon atom marked with an asterisk (*) represents an asymmetric carbon atom.Type: GrantFiled: March 6, 2015Date of Patent: October 24, 2017Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Tomoaki Takahashi, Satoru Ujita
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Publication number: 20170057935Abstract: A tetrazolinone compound represented by formula (1): [in the formula, R1 represents an alkyl group having 1-6 carbon atoms or the like] can be produced by reacting a compound represented by formula (2): [in the formula, X1 represents a bromine atom or the like, and R1 represents an alkyl group having 1-6 carbon atoms or the like] with a compound represented by formula (A): R—Mg—X??(A) [in the formula, R represents an alkyl group having 1-6 carbon atoms or the like, and X1 represents a bromine atom or the like] to provide a compound represented by formula (3): [in the formula, X2 represents a chlorine atom or the like] and reacting the compound represented by formula (3) with formaldehyde or a compound represented by formula (4): [in the formula, R6 represents an alkyl group having 1-6 carbon atoms or the like, and X3 represents a chlorine atom, bromine atom or iodine atom].Type: ApplicationFiled: March 3, 2015Publication date: March 2, 2017Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoru UJITA, Takayuki SHIODA
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Publication number: 20170022162Abstract: The present invention provides a method for manufacturing an optically active compound of formula (2), which contains bringing hydrogen into contact with a compound of formula (1) in the presence of a transition metal catalyst having an optically active ligand. In the formula, R1 represents a hydrogen atom or an acetyl group, R2, R3, R4, and R5 each independently represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a hydroxy group, a nitro group, an amino group, or an acyl group, R6 represents an alkyl group, R7 and R8 each independently represents a hydrogen atom or an alkyl group, and a carbon atom marked with an asterisk (*) represents an asymmetric carbon atom.Type: ApplicationFiled: March 6, 2015Publication date: January 26, 2017Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Tomoaki TAKAHASHI, Satoru UJITA
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Publication number: 20160332956Abstract: Position-1 halogen can be selectively reduced by reacting a compound represented by formula (3): [wherein X represents a chlorine atom, a bromine atom, or an iodine atom] with halogen in the presence of a heterogeneous transition metal catalyst to produce 2-(halogenomethyl)-1-methyl-3-nitrobenzene represented by formula (1): [wherein the symbol is as defined above].Type: ApplicationFiled: February 16, 2015Publication date: November 17, 2016Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoru Ujita, Takashi Miyamoto
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Patent number: 9227911Abstract: A method for producing a methanol solvate of D-tartrate of (R)-1,1,3-trimethyl-4-aminoindane, the method comprising steps (a), (b), and (c) below, and comprising adding water to a reaction system before step (c): step (a) of mixing 1,1,3-trimethyl-4-aminoindane, D-tartaric acid, and methanol to provide a mixture containing a methanol solvate of D-tartrate of (R)-1,1,3-trimethyl-4-aminoindane; step (b) of cooling the obtained mixture; and step (c) of retrieving the methanol solvate of D-tartrate of (R)-1,1,3-trimethyl-4-aminoindane.Type: GrantFiled: August 28, 2013Date of Patent: January 5, 2016Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoru Ujita, Tsutomu Matsumoto, Tomohiko Inui
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Publication number: 20150203438Abstract: A method for producing a methanol solvate of D-tartrate of (R)-1,1,3-trimethyl-4-aminoindane, the method comprising steps (a), (b), and (c) below, and comprising adding water to a reaction system before step (c): step (a) of mixing 1,1,3-trimethyl-4-aminoindane, D-tartaric acid, and methanol to provide a mixture containing a methanol solvate of D-tartrate of (R)-1,1,3-trimethyl-4-aminoindane; step (b) of cooling the obtained mixture; and step (c) of retrieving the methanol solvate of D-tartrate of (R)-1,1,3-trimethyl-4-aminoindane.Type: ApplicationFiled: August 28, 2013Publication date: July 23, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoru Ujita, Tsutomu Matsumoto, Tomohiko Inui
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Publication number: 20110201649Abstract: Provided is an agricultural composition comprising a compound represented by the formula (I) or a salt thereof or a hydrate thereof, for controlling a plant disease due to a plant pathogen: [wherein, G represents a di-valent aromatic hetero 5-membered ring optionally having a halogen atom or C1 to 3 alkyl group (with the proviso that a hetero atom of the aromatic hetero 5-membered ring is a nitrogen atom, oxygen atom or sulfur atom), R1 represents a hydrogen atom or amino group, R2, R3 and R4 represent each independently a hydrogen atom or the like, and E represents an optionally substituted 5 to 10-membered heterocyclic group or C6-10 aryl group.].Type: ApplicationFiled: September 17, 2009Publication date: August 18, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yuichi Matsuzaki, Hiroshi Sakaguchi, Satoru Ujita