A recyclable polymer anchored copper(II) catalyst for oxidation reaction of olefins and alcohols with tert-butylhydroperoxide in aqueous medium

A new reusable polymer anchored Cu(II) complex was synthesized which can acts as an efficient heterogeneous catalyst for oxidation of olefins and alcohols with tert-butylhydroperoxide (TBHP) in aqueous medium. The present catalyst well oxidized styrene and other olefins to their allylic products and alcohols were converted to their corresponding aldehydes in good-to-moderate yields. This catalyst can be easily recovered by filtration and recycled without significant loss of its catalytic performances.

The oxidation reaction is efficiently catalyzed by polymer anchored Cu(II) catalyst with tert-butylhydroperoxide in H2O. In all the cases of olefins except cyclooctene, allylic oxidation products are obtained and alcohols are selectively converted to aldehydes. This catalyst was recovered and reused five times without significant loss of its activity.Figure optionsDownload as PowerPoint slideHighlights
► Polymer anchored Cu(II) catalyst was synthesized and characterized.
► This catalyst shows oxidation reaction in aqueous medium.
► This catalyst shows excellent catalytic activity in alkene oxidation.
► This catalyst also oxidized aromatic alcohols.
► This complex can be recycled up to five times.