17665-58-6Relevant academic research and scientific papers
BIOMIMETIC OXIDATION OF ORGANIC SULFIDES WITH TPPFe(III)Cl/IMIDAZOLE/HYDROGEN PEROXIDE
Oae, Shigeru,Watanabe, Yoshihito,Fujimori, Ken
, p. 1189 - 1192 (1982)
An enzyme model system, consisted with TPPFe(III)Cl/imidazole has been found to catalyze hydrogen peroxide dependent S-oxygenation and oxidative S-dealkylation of organic sulfides.This biomimetic reaction has been compared with the cytochrome P-450 catalyzed H2O2 dependent oxygenation.
Anchoring Mn(IV) in multi pyridine modified mesoporous silica SBA-15: An efficient nanocatalyst for selective oxidation of sulfides to sulfoxides
Hekmati, Malak,Hemmati, Saba,Karmakar, Bikash,Salamat, Delafarin,Veisi, Hojat,Yousefi, Mohammad
, (2020/01/28)
In this current study we report the implementation of Mn(IV) grafted multipyridine linked melanine functionalized SBA-15/CCPy/Mn(OAc)2 as a novel high surface area nanocatalyst. The melamine linked multipyridine ligand was introduced over mesop
Tungstate supported mesoporous silica SBA-15 with imidazolium framework as a hybrid nanocatalyst for selective oxidation of sulfides in the presence of hydrogen peroxide
Sedrpoushan, Alireza,Hosseini-Eshbala, Fereshteh,Mohanazadeh, Farajollah,Heydari, Masoud
, (2017/09/07)
In this work, a new heterogeneous catalyst (SBA-15/Im/WO4 2?) was prepared, and then its performance in the oxidation of organic sulfides was studied (using 30% H2O2 as green oxidant under neutral reaction conditions). This organic–inorganic hybrid mesoporous material was characterized by various techniques, such as FT-IR, inductively coupled plasma, X-ray powder diffraction, high-resolution-transmission electron microscopy, N2 adsorption–desorption and thermogravimetric analysis. The catalyst was also applied to the selective oxidation of various sulfides. The hybrid catalyst was easily recovered, and was very stable and retained good activity for at least five successive runs without any additional activation. Moreover, there was no remarkable decrease in the activity and selectivity of the catalyst. The products could be easily isolated by just removing the solvent after filtering the catalyst. The yields of the catalytic productions through this catalyst were in the range from 75% to 97%.
SULFOXIDATION CATALYSTS AND METHODS FOR THEIR PREPARATION AND USE
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Paragraph 0054; 055, (2016/09/26)
Methods and compositions of catalysts for sulfoxidation reaction processes are disclosed. The sulfoxidation reaction process can be performed in an aqueous medium, and the catalysts can be recycled for further use. In some embodiments, a method of making a catalyst may include contacting a transition metal compound with an oxidizing agent to form a first solution, contacting a carboxylic acid compound with a cationic surfactant to form a second solution, mixing the first solution and the second solution to form a precipitate, and isolating the precipitate.
A molybdenum based metallomicellar catalyst for controlled and selective sulfoxidation reactions in aqueous medium
Chakravarthy, Rajan Deepan,Ramkumar, Venkatachalam,Chand, Dillip Kumar
, p. 2190 - 2196 (2014/04/17)
A surfactant based molybdenum system that exhibits catalytic activity for sulfoxidation reactions of various organic sulfides in aqueous medium has been developed and comprehensively characterized using IR, XRD, NMR, ESI-MS, DLS and TEM. The catalyst showcases remarkable selectivity for the preparation of both sulfoxides and sulfones in the range of good to excellent yields. Furthermore, the catalyst showed a high degree of tolerance towards various sensitive functional groups such as hydroxyl, acetal, aldehyde, amine, imine, oxime, cyano and alkene. the Partner Organisations 2014.
Synthesis, characterization and application of nano-sized Co 2CrO4 spinel catalyst for selective oxidation of sulfides to sulfoxides
Yazdanbakhsh, Mohammad,Khosravi, Iman,Mashhoori, Mahboobeh-Sadat,Rahimizadeh, Mohammad,Shiri, Ali,Bakavoli, Mehdi
experimental part, p. 413 - 418 (2012/03/12)
The nano-sized Co2CrO4 spinel was produced for the first time by thermal decomposition of Cr-Co gel prepared by sol-gel method. It was shown that well-crystallized spinel structure is formed after calcination at 450 °C. The usual cha
Alumina-supported monoperphosphoric acid for selective oxidation of sulfides to sulfoxides
Lakouraj, Moslem M.,Hasantabar, Vahid
experimental part, p. 93 - 98 (2012/01/12)
Selective oxidation of aromatic and aliphatic sulfides to the corresponding sulfoxide was achieved by using POCl3/H2O2 and (alumina-supported phosphorus oxychloride)/H2O2. A versatile procedure for th
Cyanuric chloride promoted oxidation of sulfides to sulfoxides or sulfones in the presence of hydrogen peroxide
Lakouraj, Moslem Mansour,Abdi, Hamid,Hasantabar, Vahid
experimental part, p. 435 - 441 (2012/06/16)
Aromatic and aliphatic sulfides are readily oxidized to sulfoxides or sulfones in high yield with 35% hydrogen peroxide in the presence of cyanuric chloride (CC) as an efficient activator. The oxidation of sulfides proceeds at room temperature and the corresponding sulfoxides or sulfones was selectively obtained by controlling the amounts of H2O2 and CC. Various sulfides possessing functional groups such as hydroxyl, methoxy, nitrile, aldehyde and olefinic double bond were successfully and selectively oxidized without affecting sensitive functionalities. [image omitted].
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
Rahimizadeh, Mohammad,Rajabzadeh, Ghadir,Khatami, Seyed-Mola,Eshghi, Hossein,Shiri, Ali
scheme or table, p. 59 - 64 (2010/09/04)
A new and efficient synthetic method has been developed for the selective conversion of sulfides into their corresponding sulfones and sulfoxides using H2O2 in the presence of neat or Preyssler-type heteropoly acid modified nano-sized TiO2 as catalyst, respectively. The reaction was performed at room temperature with quantitative yields. The catalyst is reusable without significant loss of activity for the next oxidation reaction.
Selective and mild oxidation of sulfides to sulfoxides by H2O2 using DBUH-Br3 as catalyst
Bakavoli, Mehdi,Kakhky, Alireza Motavalizadeh,Shiri, Ali,Ghabdian, Mahdieh,Davoodnia, Abolghasem,Eshghi, Hossein,Khatami, Mola
experimental part, p. 651 - 655 (2011/10/12)
DBUH-Br3 catalyzed selective conversion of sulfides to sulfoxides in the presence of H2O2 as oxidizing agent is described. The reaction was performed selectively at room temperature and relatively short reaction times.
