TiO2 nanoparticles and Preyssler-type heteropoly acid modified nano-sized TiO2: A facile and efficient catalyst for the selective oxidation of sulfides to sulfones and sulfoxides

Reactive Adsorption of Sulfur Compounds on Transition Metal Polycation‐Exchanged Zeolites for Desulfurization of Hydrocarbon Streams

“…The direct juxtaposition of the retention indexes for various pure sulfur compounds allowed us to determine that those three peaks belong to diethyl sulfide (DES), diethyl disulfide (DEDS), and diethyl sulfoxide (DESO), respectively. It should be noted that the oxidation of thiols into sulfides and disulfides and the latter into sulfoxides and sulfones over heterogeneous catalysts was reported previously …”

“…It should be noted that the oxidation of thiols into sulfides and disulfides and the latter into sulfoxides and sulfones over heterogeneous catalysts was reportedpreviously. [24][25][26] This research demonstrates the possibility of efficient oxidationo fthea dsorbed ET by TrMp olycation-exchanged zeolites.T he most noteworthy feature is probably that the thiol oxidationproceedsinc ompletely oxygen-free media.…”

Nano-TiO₂ as a novel and efficient catalyst for the synthesis of pyridine dicarbonitriles

“…The high surface area brought about by nanoparticle size is beneficial to many TiO 2 -based devices, as it facilitates reaction/interaction between the devices and the interacting media [13]. TiO 2 nanoparticle has been widely investigated in the past decades due to its multiple potential catalytic activity for esterification [14], degradation of methyl parathion [15], photodecomposition of methylene-blue [16], rhodamine B degradation [17], synthesis of β-acetamido ketones [18], 2-alkylbenzimidazoles and indazole [19], β-amino ketones [20], bis(indolyl)methanes [21], 2-indolyl-1-nitroalkane [22], selective oxidation of sulfides [23], Friedel-Crafts alkylation of indoles [24] and photocatalytic synthesis of quinaldines [25].…”

Preparation and Characterization of Organically Modified MCM-48 as Heterogonous Catalyst for Oxidation of Sulfides and Thiols

“…Sulfoxides are important intermediates in the synthesis of many natural and pharmalogical products [17,18], such as antibacterial, antifungal, anti-atherosclerotic, antihypertensive [19], cardiotonic agents, psychotonics and vasodilators [20]. Many reagents are used for the oxidation of sulfides such as nitric acid, KMnO 4 , m-chloroperbenzoic acid, sodium metaperiodate, hydrogen peroxide, sulfinyl peroxy compounds, 4-methylmorpholine n-oxide/osmium tetroxide, peroxotungstate complexes [21], MeNO 2 solution in dilute HNO 3 /H 2 SO 4 [22] and etc.…”