Abstract: A new type of organic polymer-inorganic hybrid material zinc poly(styrene-phenylvinylphosphonate)-phosphate was designed and synthesized under mild conditions. The characterized results show that the new hybrid material is crystalline with regular layered structure, and the ideal structure model is proposed. A series of new heterogeneous catalysts was obtained by grafting chemical modified on support and subsequently axial coordination with chiral salen Mn(Ⅲ) complexes. The supported catalysts were applied to the enantioselective epoxidation of unfunctionalized olefins with m-CPBA as oxidants. The heterogeneous catalysts exhibited higher activity and enantioselectivity than in homogeneous catalyst system, and excellent reusability. It was surprised that the heterogeneous catalysts afforded remarkable increases of conversion and e.e. values in the absence of co-catalyst 4-methylmorpholine N-oxide(NMO), which increases the possibility for industry applications.

Key words: Layered zinc poly(styrene-phenylvinylphosphonate)-phosphate, Diphenol-modified, Chiral Salen Mn(Ⅲ), Asymmetric epoxidation, Co-catalyst