US 12,319,635 B2
Method for producing aromatic aminomethyl
Keisuke Tomaki, Kanagawa (JP); and Shinyou Shirai, Okayama (JP)
Assigned to MITSUBISHI GAS CHEMICAL COMPANY, INC., Chiyoda-ku (JP)
Appl. No. 18/004,261
Filed by MITSUBISHI GAS CHEMICAL COMPANY, INC., Chiyoda-ku (JP)
PCT Filed Jul. 6, 2021, PCT No. PCT/JP2021/025396
§ 371(c)(1), (2) Date Jan. 4, 2023,
PCT Pub. No. WO2022/019105, PCT Pub. Date Jan. 27, 2022.
Claims priority of application No. 2020-125155 (JP), filed on Jul. 22, 2020.
Prior Publication US 2023/0265042 A1, Aug. 24, 2023
Int. Cl. C07C 209/48 (2006.01); C07C 209/84 (2006.01)
CPC C07C 209/48 (2013.01) [C07C 209/84 (2013.01)] 18 Claims
 
1. A method for producing an aromatic aminomethyl, comprising hydrogenating an aromatic nitrile in an organic solvent comprising a polar organic solvent having a solubility parameter (SP value) of 9 or more in the presence of a quaternary ammonium compound, at least one metal hydroxide selected from the group consisting of an alkali metal hydroxide and an alkaline earth metal hydroxide, and a hydrogenation catalyst.