Indene epoxidation over immobilized methyltrioxorhenium on MCM-41 silica, fumed silica and aluminosilicate materials

Abstract

The presented report focuses on the testing of heterogenized methyltrioxorhenium (MTO) in indene epoxidation. A range of mesoporous materials with different SiO 2 /Al 2 O 3 ratios, namely aluminosilicates type Siral and MCM-41 silica and fumed silica, were used as supports for immobilization of MTO. The tested support materials and prepared catalytic systems exhibited high surface area, well-defined regular structure and narrow pore size distribution of mesopores and therefore represent good quality catalysts for various reactions. The immobilized MTO on various supports was tested for the preparation of 1,2-epoxyindane using two forms of hydrogen peroxide as oxidation agents, namely aqueous solution of hydrogen peroxide and its anhydrous form, urea-hydrogen peroxide. The prepared catalysts were successfully used for the preparation of 1,2-epoxyindane with achieved 100 % selectivities to the desired product at high conversions of indene.

Indene epoxidation over titanium modified MCM-41 mesoporous materials

“…99 % yield of 1,2-epoxyindane was achieved using methyltrioxorhenium immobilized on silica. Unfortunately, the possible regeneration or reuse of this catalyst was not proven by the authors [6].…”

“…As mentioned above, the authors have previously investigated catalytic activity of the heterogenized methyltrioxorhenium in the epoxidation reaction of indene in the presence of urea-hydrogen peroxide as a oxidizing agent [6]. 99 % yield of 1,2-epoxyindane was achieved using methyltrioxorhenium immobilized on silica.…”

“…The authors have previously published results focused on an investigation of rhenium catalyst (methyltrioxorhenium) in indene epoxidation [6]. Very high activities and selectivities up to 100 % toward 1,2-epoxyindane were achieved using immobilized methyltrioxorhenium on various mesoporous supports in the presence of urea-hydrogen peroxide as a oxidizing agent [6].…”

“…Very high activities and selectivities up to 100 % toward 1,2-epoxyindane were achieved using immobilized methyltrioxorhenium on various mesoporous supports in the presence of urea-hydrogen peroxide as a oxidizing agent [6]. The main disadvantage of the tested rhenium catalysts is their high price and their unsuccessful regeneration.…”

A Highly Efficient Heterogeneous Catalyst of Bimetal-Organic Frameworks for the Epoxidation of Olefin with H2O2

“…As a result of the advantages in catalyst separation and recovery, heterogeneous catalysis systems attracted great attention. Some metal complexes immobilized on solid polymer, grapheme [6,7] or inorganic particles [8,9] were reported as reusable catalysts. Among these heterogeneous catalysts, metal-organic framework materials (MOFs) have received growing interest due to their high BET surfaces, defined pores, ordered structures and adjustable catalytic activity sites of metal ions-organic ligands [10,11].…”