Continuous Enantioselective Kinetic Resolution of Terminal Epoxides Using Immobilized Chiral Cobalt-Salen Complexes

Abstract

Jacobsen’s cobalt-salen complex was covalently immobilized on polymer carriers that are part of different technical setups (polymer powder, composite Raschig rings, PASSflow microreactors) and employed for the enantioselective ring opening of terminal epoxides with water and phenols. The polymer-supported catalysts showed good activity and stereoselectivity and could be used repeatedly after a simple reactivation protocol in both batch as well as continuous-flow modes.

Key words

catalysis - immobilization - continuous-flow processes - enantioselective synthesis - microreactor - salen

References

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7

The loading with salen ligand was determined by weight increase and combustion analysis.