A novel supported Katsuki-type (salen) Mn complex for asymmetric epoxidation

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Smith, Keith ; Liu, Chia-Hui ; El-Hiti, Gamal A.

We have successfully prepared an unsymmetrical analogue of a Katsuki-type salen ligand having a hydroxyalkyl group at the 6-position of just one of the binaphthyl units in the ligand, and also several Mn(III) complexes; these complexes have been attached to a polymer by an ester link and such polymer catalysts have been shown to be highly enantioselective and recoverable catalysts for the epoxidation of 1,2-dihydronaphthalene.
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