A novel L-asparaginyl Amido ethyl methyl imidazolium bromide catalyst for heterogeneous epoxidation of α, β-unsaturated ketones

► An efficient [L-Aaemim] Br for asymmetric epoxidation in the presence of co-solvent. ► The procedure is easy and does not require special precautions. ► The catalyst was separated and reused for few runs without loss of its catalytic activity.