Portal de Periódicos da CAPES

Enantioselective Gold Catalysis: Opportunities Provided by Monodentate Phosphoramidite Ligands with an Acyclic TADDOL Backbone

2010; Wiley; Volume: 49; Issue: 11 Linguagem: Inglês

10.1002/anie.200906550

1521-3773

Henrik Teller, Susanne Flügge, Richard Goddard, Alois Fürstner,

Synthetic Organic Chemistry Methods

The tail makes the difference: Removing the isopropylidene acetal unit from well-known TADDOL ligands improved the performance of the derived phosphoramidite ligands in asymmetric gold catalysis (see scheme; Ts=4-toluenesulfonyl). X-ray crystallography showed that the binding pocket has an effective threefold symmetry, with through-space interactions between the arene rings of the ligand and the gold center.