Li-xin Dai

Name:

Organization: Shanghai Institute of Organic Chemistry

Department: State Key Laboratory of Organometallic Chemistry

Title:

Chemicals
References

Ligand electronic effects in the palladium catalyzed asymmetric allylic alkylation reaction with planar chiral diphosphine-oxazoline ferrocenyl ligands

Co-reporter:Tao Tu, Xue-Long Hou, Li-Xin Dai

Journal of Organometallic Chemistry 2004 Volume 689(Issue 23) pp:3847-3852

Publication Date(Web):15 November 2004

DOI:10.1016/j.jorganchem.2004.09.061

A series of planar chiral diphosphine-oxazoline ferrocenyl ligands with different electronic properties were successfully used in the asymmetric allylic substitutent reaction. The enantioselectivity of this reaction was affected by the electronic nature of the ligands. When the electronic effect was coincident with the steric effect of ligand, a higher ee value was observed.A series of planar chiral diphosphine-oxazoline ferrocenyl ligands with different electronic nature were applied in the asymmetric allylic substitutent reaction. When the electronic effect was coincident with the steric effect of ligand, a higher ee value could be observed.

Chirale metall-organische Systeme – ein Ansatz zur Immobilisierung asymmetrischer Homogenkatalysatoren

Co-reporter:Li-Xin Dai

Angewandte Chemie 2004 Volume 116(Issue 43) pp:

Publication Date(Web):25 OCT 2004

DOI:10.1002/ange.200460301

Koordinationspolymere erweitern das Konzept der klassischen immobilisierten Katalysatoren. Sie sind durch Selbstorganisationsprozesse leicht zugänglich, weisen eine hohe Dichte an katalytisch aktiven Einheiten auf und können stabile chirale Strukturen bilden. Die Heterogenkatalysatoren liefern hervorragende Ergebnisse bei enantioselektiven Reaktionen und sind fast ohne Selektivitätsverlust wiederverwendbar.

Chiral Metal–Organic Assemblies—A New Approach to Immobilizing Homogeneous Asymmetric Catalysts

Co-reporter:Li-Xin Dai

Angewandte Chemie International Edition 2004 Volume 43(Issue 43) pp:

Publication Date(Web):25 OCT 2004

DOI:10.1002/anie.200460301

Beyond classical immobilized catalysts, metal–ligand polymers self-assembled through coordination are easily prepared, have a robust chiral structure, and display a high density of catalytically active units. These heterogeneous catalysts give excellent results for enantioselective reactions and can be recovered and recycled without significant loss of selectivity.