Hydroxyalkyl thiazoline ligands can easily be obtained in an isonitrile-based multicomponent reaction. These ligands are significantly more stable than the comparable oxazoline ligands, and give excellent enantiomeric excess in carbonyl additions of alkyl- and arylzinc compounds.
A new, modular approach towards 2-(1-hydroxyalkyl)oxazolines, effective bidentate chiral ligands
作者:Michael Bauer、Uli Kazmaier
DOI:10.1016/j.jorganchem.2005.10.048
日期:2006.5
Addition of beta-hydroxyisonitriles towards aldellydes gives rise to hydroxyalkyl oxazolines, an interesting class of bidentate chiral ligands. This concept allows a very easy ligand tuning and optimization of the ligand structure as illustrated in a first example. (c) 2005 Elsevier B.V. All rights reserved.