Development of a new class of (1S,3R,4R)-2-azabicyclo[2.2.1]heptane-oxazoline ligands and their application in asymmetric transfer hydrogenation
摘要:
New 2-aza-norbomane-oxazoline compounds were synthesized and evaluated as ligands in the transfer hydrogenation of acetophenone. The best catalyst prepared in situ from [IrCl2(COD)](2) and a ligand afforded 1-(S)-phenylethanol in good yields and 79% ee. (C) 2004 Published by Elsevier Ltd.
Diastereo- and Enantioselective Synthesis of Fluorine Motifs with Two Contiguous Stereogenic Centers
作者:Sudipta Ponra、Wangchuk Rabten、Jianping Yang、Haibo Wu、Sutthichat Kerdphon、Pher G. Andersson
DOI:10.1021/jacs.8b08778
日期:2018.10.24
motifs, in particular, chiral fluorine molecules with two contiguous stereogeniccenters, has attracted much interest in research due to the limited number of methods available for their preparation. Herein, we report an atom-economical and highlystereoselective synthesis of chiral fluorine molecules with two contiguous stereogeniccenters via azabicyclo iridium-oxazoline-phosphine-catalyzed hydrogenation
Application of Phosphine−Oxazoline Ligands in Ir-Catalyzed Asymmetric Hydrogenation of Acyclic Aromatic <i>N</i>-Arylimines
作者:Anna Trifonova、Jarle S. Diesen、Christopher J. Chapman、Pher G. Andersson
DOI:10.1021/ol048399+
日期:2004.10.1
[reaction: see text] A new class of chiral phosphine-oxazoline ligands have been developed. Chiral Ir complexes prepared from these ligands induced high enantioselectivities (66-90% ee) when applied to the asymmetrichydrogenation of acyclic aromatic N-arylimines.