Asymmetric Transfer Hydrogenative Amination of Benzylic Ketones Catalyzed by Cp*Ir(III) Complexes Bearing a Chiral <i>N</i>-(2-Picolyl)sulfonamidato Ligand
A convenient asymmetric reductive amination of benzylic ketones (α-arylated ketones) catalyzed by newly designed Cp*Ir complexes bearing a chiral N-(2-picolyl)sulfonamidato ligand was developed. Using readily available β-aminoalcohols as chiral aminating agents, a range of benzo-fused and acyclic ketones were successfully reduced with formic acid in methanol at 40 °C to afford amines with favorable
A novel asymmetric route to 2-amino-1,2,3,4-tetrahydronaphthalenes
作者:Michael C.J Harris、Mark Jackson、Ian C Lennon、James A Ramsden、Helen Samuel
DOI:10.1016/s0040-4039(00)00327-0
日期:2000.4
A novel asymmetric route to 2-amino-1,2,3,4-tetrahydronaphthalenes has been demonstrated starting from phthalimidovinylglycinol (PVG). Functionalisation of PVG via Heck reaction, olefin hydrogenation and cyclisation provides the title products. (C) 2000 Elsevier Science Ltd. All rights reserved.
Asymmetric Amination of Tetralone and Chromanone Derivatives Employing ω-Transaminases
作者:Desiree Pressnitz、Christine S. Fuchs、Johann H. Sattler、Tanja Knaus、Peter Macheroux、Francesco G. Mutti、Wolfgang Kroutil
DOI:10.1021/cs400002d
日期:2013.4.5
(S)-selective and (R)-selective ω-transaminases were investigated for the amination of 1- and 2-tetralone and derivatives as well as of 3- and 4-chromanone. All ketones tested were aminated to give the corresponding enantiopure amines (ee > 99%) employing at least one of the enzymes investigated. In most of the cases the (S)- as well as the (R)-enantiomer was obtained in opticallypure form. The amination of