Zr (IV)-ninhydrin supported MCM-41 and MCM-48 as novel nanoreactor catalysts for the oxidation of sulfides to sulfoxides and thiols to disulfides

A palladium(0)–threonine complex immobilized on the surface of magnetic mesocellular foam: an efficient, stable, and magnetically separable nanocatalyst for Suzuki, Stille, and Heck cross-coupling reactions

“…According to the similar procedure, 40,55 the obtained MMCF (1 g) was well dispersed in deionized water (40 mL) under ultrasonication for 20 min. Afterward, l -threonine (0.39 g, 3.0 mmol) was added and stirred under reflux for 48 h under an nitrogen atmosphere.…”

Effect of Morphology on the Performance of Nb2O5 Catalysts for Thioether Oxidation at Room Temperature under Solvent‐free Conditions

“…Later, Veisi et al [12] investigated the oxidation of sulfides over Fe 3 O 4 /PEG-SO 3 H. Selective formation of sulfones or sulfoxides was achieved; however, the catalyst preparation processes are complex. The Lewis acid catalysts include Fe 3 O 4 @Si-APFSB-MoO 2 , [13] Zr(IV)-ninhydrin/MCM-41, [14] MCM-41@Tryptophan-Cd [15] and MNPs-PhSO 3 -Sc(OTf) 2 . [16] Ghadermazi et al [15] investigated the catalytic oxidation of sulfides into sulfoxides over MCM-41@Tryptophan-Cd.…”

Immobilized zirconium‐thiouracil complex on MCM‐41 magnetic mesoporous as a recyclable nanocatalyst for carbon‐sulfide bond formation

“…Porous silica materials offer the potential for increased capacity in hosting active species and improved accessibility to active sites due to their expansive surface area 31,32 . MCM‐41, belonging to the M41S mesoporous family, is composed of a regular hexagonal array, which, due to its distinct properties including surface area of more than 1,000 m 2 /g, thermal stability up to more than 900°C, large pore size of about 2 to 50 nm and excellent mechanical stability have attracted much attention 33–35 . On the other hand, the various applications of mesoporous silica materials, such as separation, catalysis, photocatalysis, adsorption, and sensors, encourage many researchers and scientists to use these materials as supports for various heterogeneous catalysts.…”

“…31,32 MCM-41, belonging to the M41S mesoporous family, is composed of a regular hexagonal array, which, due to its distinct properties including surface area of more than 1,000 m 2 /g, thermal stability up to more than 900 C, large pore size of about 2 to 50 nm and excellent mechanical stability have attracted much attention. [33][34][35] On the other hand, the various applications of mesoporous silica materials, such as separation, catalysis, photocatalysis, adsorption, and sensors, encourage many researchers and scientists to use these materials as supports for various heterogeneous catalysts. However, the separation of mesoporous silica materials is a difficult and laborious process due to their small size that requires filtration or centrifugation techniques.…”