Actuation of Asymmetric Cyclopropanation Catalysts: Reversible Single-Crystal to Single-Crystal Reduction of Metal-Organic Frameworks

Actuation of Asymmetric Cyclopropanation Catalysts: Reversible Single-Crystal to Single-Crystal Reduction of Metal-Organic Frameworks

To and fro: Chiral metal–organic frameworks (CMOFs) derived from redox‐active ruthenium/salen building blocks exhibited reversible single‐crystal to single‐crystal reduction and reoxidation. The catalytically inactive RuIII CMOFs (green; see picture) were reduced to RuII CMOFs (red) that were highly...

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Veröffentlicht in:Angewandte Chemie International Edition 2011-09, Vol.50 (37), p.8674-8678
Hauptverfasser: Falkowski, Joseph M., Wang, Cheng, Liu, Sophie, Lin, Wenbin
Format: Artikel
Sprache:eng
Schlagworte:
asymmetric catalysis
Catalysis
Crystallography, X-Ray
cyclopropanation
Cyclopropanes - chemical synthesis
Cyclopropanes - chemistry
Ethylenediamines - chemistry
Ligands
metal-organic frameworks
Models, Molecular
Molecular Structure
Organometallic Compounds - chemical synthesis
Organometallic Compounds - chemistry
Oxidation-Reduction
Particle Size
ruthenium
Ruthenium - chemistry
structure elucidation
Surface Properties
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Beschreibung
Zusammenfassung:To and fro: Chiral metal–organic frameworks (CMOFs) derived from redox‐active ruthenium/salen building blocks exhibited reversible single‐crystal to single‐crystal reduction and reoxidation. The catalytically inactive RuIII CMOFs (green; see picture) were reduced to RuII CMOFs (red) that were highly active for the asymmetric cyclopropanation of alkenes with very high diastereo‐ and enantioselectivities.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201104086