公开(公告)号：US20190161434A1

公开(公告)日：2019-05-30

申请号：US16320686

申请日：2017-07-25

Applicant: SHOWA DENKO K.K.

Inventor： Takanori AOKI ,  Akira SHIBUYA ,  Takamitsu KOBAYASHI ,  Hideo MIYATA ,  Shinya TSUKAMOTO ,  Manabu KUWAJIMA ,  Motoki MURAI

IPC: C07C227/18 ,  C07C229/08 ,  C07C231/02 ,  C07C233/04 ,  B01J21/06

Abstract: The present invention relates to a method for producing a specified α-amino acid, the method including allowing a specified α-amino acid amide and water to react with each other in the presence of a zirconium compound which contains zirconium and at least one metal element selected from the group consisting of lithium, nickel, copper, zinc, cesium, barium, hafnium, tantalum, cerium, and dysprosium.

公开(公告)号：US20210292273A1

公开(公告)日：2021-09-23

申请号：US16317988

申请日：2017-07-11

Applicant: SHOWA DENKO K.K.

Inventor： Takanori AOKI ,  Akira SHIBUYA ,  Takamitsu KOBAYASHI ,  Hideo MIYATA ,  Shinya TSUKAMOTO ,  Manabu KUWAJIMA ,  Motoki MURAI

IPC: C07C227/26

Abstract: Provided is a method for producing glycine, in which on synthesizing glycine from glycinonitrile, glycine can be obtained in a higher yield than that in the conventional method. The present invention relates to a method for producing glycine, including allowing glycinonitrile and water to react with each other in the presence of a cerium compound, optionally adding ammonia thereto, to obtain glycine.

公开(公告)号：US20210238123A1

公开(公告)日：2021-08-05

申请号：US17049792

申请日：2019-04-25

Applicant: SHOWA DENKO K.K.

Inventor： Yasuyuki UEDA ,  Akira SHIBUYA ,  Hideo MIYATA ,  Hiroshi UCHIDA

IPC: C07C231/06 ,  B01J31/02

Abstract: A method of producing an N,N-disubstituted amide of the present invention is a method of reacting a nitrile with an alcohol in the presence of a catalyst, wherein the nitrile is a compound represented by R1CN (R1 represents an alkyl group having 10 or less carbon atoms or an aryl group having 10 or less carbon atoms), wherein the alcohol is a compound represented by R2OH (R2 represents an alkyl group having 10 or less carbon atoms), wherein the catalyst is a metal salt represented by MXn (M represents a metal cation having an oxidation number of n, X represents a monovalent anion including a substituted sulfonyl group represented by —S(═O)2—R3 (R3 represents a hydrocarbon group having 10 or less carbon atoms or a group in which some or all of hydrogen atoms in the hydrocarbon group are substituted with fluorine atoms), and n represents an integer of 1 to 4), a substituent bonded to a carbon atom in a carbonyl group of the N,N-disubstituted amide is R1, and two substituents bonded to nitrogen atoms in an amide group are both R2.