57230-08-7Relevant articles and documents
Liquid chromatography enantiomeric separation of chiral ethanolamine substituted compounds
Armstrong, Daniel W.,Berthod, Alain,Firooz, Sepideh Khaki,Fulton, Brandon,Lovely, Carl J.,Putman, Joshua
, (2022/01/31)
Eleven racemic ethanolamine derivatives were prepared, and their enantiomers were separated using liquid chromatography with various chiral columns. These derivatives included chiral vicinal amino alcohols, β-hydroxy ureas, β-hydroxy thioureas, and β-hydr
Chiral-Organotin-Catalyzed Kinetic Resolution of Vicinal Amino Alcohols
Yang, Hui,Zheng, Wen-Hua
, p. 16177 - 16180 (2019/11/03)
A highly efficient kinetic resolution of racemic amino alcohols has been achieved for the first time with a chiral tin catalyst. A chiral organotin compound with 3,4,5-trifluorophenyl groups at the 3,3′-positions of the binaphthyl framework enabled this transformation with excellent yield and high enantioselectivity. The process tolerates aryl- and alkyl-substituted amino alcohols and a variety of other substrates, affording the corresponding products in high enantioselectivity and with s factors up to >500.
Kinetic resolution of racemic amino alcohols through intermolecular acetalization catalyzed by a chiral Bronsted acid
Yamanaka, Takuto,Kondoh, Azusa,Terada, Masahiro
, p. 1048 - 1051 (2015/02/19)
The kinetic resolution of racemic secondary alcohols is a fundamental method for obtaining enantiomerically enriched alcohols. Compared to esterification, which is a well-established method for this purpose, kinetic resolution through enantioselective intermolecular acetalization has not been reported to date despite the fact that the formation of acetals is widely adopted to protect hydroxy groups. By taking advantage of the thermodynamics of acetalization by the addition of alcohols to enol ethers, a highly efficient kinetic resolution of racemic amino alcohols was achieved for the first time and in a practical manner using a chiral phosphoric acid catalyst.