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 Ru III CMOFs (green; see picture) were
reduced to Ru II CMOFs (red) that were highly active for the asymmetric cyclopropanation of
alkenes with very high diastereo‐and enantioselectivities.
ruthenium/salen building blocks exhibited reversible single‐crystal to single‐crystal
reduction and reoxidation. The catalytically inactive Ru III CMOFs (green; see picture) were
reduced to Ru II CMOFs (red) that were highly active for the asymmetric cyclopropanation of
alkenes with very high diastereo‐and enantioselectivities.
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.
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