Dihydroxylation of olefins catalyzed by polystyrene-sg-imidazolium resin-supported osmium complex.

[摘要]：OsO4 was immobilized onto an imidazolium-based polymer, poly(1-methylimidazoliummethyl styrene)-surface grafted-PS (PS-sg-IM) resin. To characterize the polymer-imidazolium-supported Os-complex catalysts, FT-IR, field emission SEM, EDX, and ICP-AES expts. were carried out, and verified that the formation of the Os complex occurred only on the surface of the polymer support. This polymer catalyst was used in the dihydroxylation of various olefins, revealed excellent catalytic activity, and could be reused ? times.

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