Ti-silicates activate H2O2 to form Ti-hydroperoxo and Ti-peroxo intermediates that can react with alkenes epoxide products. Comparisons of kinetics for 1-octene epoxidation on Ti-BEA Ti-MFI catalysts different hydrophilicities in methanol (CH3OH) or acetonitrile (CH3CN) solvents show the significance solvent stabilizing catalytically-relevant species complex interdependencies between solvent, c...

The generation of multifunctional isolated active sites in zeolite supports is an attractive method for integrating multistep sequential reactions into a single-pass tandem catalytic reaction. In this study, bifunctional TiSn-Beta was prepared by simple and scalable post-synthesis approach, it utilized as efficient heterogeneous catalyst the conversion alkenes to 1,2-diols. Ti Sn Lewis acid wit...

mn(tpp)cl catalyzes cooxidation of olefin in the singlet oxygenation of sulfid. mn(tpp)cl is able to transfer an oxygen atom from a peroxidic intermediate generated in singlet oxygenation of sulfide to a metal ion affording metal 0x0 species which is responsible for epoxidation. this system leads to allcenes epoxidation such as styrene and cyclooctene. epoxidation of cyclohexene produces cycloh...

Porous titanosilicate beads with a diameter of 0.5-1.5 mm (TiSil-HPB-60) were synthesized from a preformed titanosilicate solution with a porous anion-exchange resin as template. The bead format of this material enables its straightforward separation from the reaction mixture in its application as a liquid-phase heterogeneous catalyst. The material displays hierarchical porosity (micro/mesopore...