130562-16-2Relevant articles and documents
A FACILE METHOD FOR THE ASYMMETRIC SYNTHESIS OF ENANTIOMERICALLY PURE 1-(2-FLUOROPHENYL)ETHYLAMINE
Bringmann, G.,Geisler, J.-P.
, p. 67 - 73 (1990)
A simple, two-step procedure for the synthesis of optically active (S)-1-(2-fluorophenyl)ethylamine (1) is described.Starting from commercially available 2-fluoroacetophenone (2), imination with (S)-1-phenylethylamine (3), followed by stereoselective hydrogenation over Raney-nickel gives the secondary amine 5a.Subsequent regioselective hydrogenolytic cleavage of homogenous 5a yields enantiomerically pure 1.
B(C6F5)3-Catalyzed Asymmetric Reductive Amination of Ketones with Ammonia Borane
Pan, Zhentao,Shen, Leixin,Song, Dingguo,Xie, Zhen,Ling, Fei,Zhong, Weihui
, p. 11502 - 11509 (2018/09/25)
The first example of metal-free B(C6F5)3-catalyzed asymmetric reduction amination of ketones with chiral α-methylbenzylamine (α-MBA) using ammonia borane as the reductant is reported. This one-pot method has a broad substrate scope and provides various chiral amines in 81-95% yield with 80-99% de. This protocol was further applied in the total synthesis of cinacalcet.
Sequential reductive amination-hydrogenolysis: A one-pot synthesis of challenging chiral primary amines
Nugent, Thomas C.,Negru, Daniela E.,El-Shazly, Mohamed,Hu, Dan,Sadiq, Abdul,Bibi, Ahtaram,Umar, M. Naveed
supporting information; experimental part, p. 2085 - 2092 (2011/10/19)
Difficult-to-access chiral primary amines were formed in good to high yield and ee using a rare example of a one-pot synthesis from prochiral ketones (sequential reductive amination-hydrogenloysis). As a highlight we also demonstrate a one-pot reductive amination-hydrogenolysis-reductive amination (five reactions) of ortho-methoxyacetophenone resulting in the chiral diamine 1-(2-methoxyphenyl)ethyl-(2-pyridylmethyl)-amine (4) (58% overall yield, >99% ee), a new organocatalyst for aqueous enantioselective aldol reactions. Copyright