Asymmetric epoxidation of unfunctionalized olefins catalyzed by Mn(salen) axially immobilized onto insoluble polymers

Chiral Mn(salen) complexes axially immobilized onto insoluble polymers by phenoxy group or phenyl sulfonic group afford comparable or even higher enantioselectivities than homogeneous Mn(salen) catalysts for the asymmetric epoxidation of various unfunctionalized olefins. These heterogeneous Mn(salen) catalysts are relatively stable and can be recycled in the asymmetric epoxidation.

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