7205-69-8Relevant articles and documents
Tungstate supported on magnetic ionic liquid-modi?ed graphene oxide as an efficient and recyclable catalyst for the selective oxidation of sulfides
Dabiri, Minoo,Tavil, Hassan Esmaielie,Lehi, Noushin Farajinia,Movahed, Siyavash Kazemi,Mnachekanian Salmasi, Aram,Souri, Sepideh
, (2021/11/30)
An effective and recyclable catalyst based on tungstate ion immobilization on magnetic ionic liquid modified graphene oxide (WO4@Fe3O4/GO-IL) has been synthesized in this research. The catalyst was characterized by various
Kinetic investigation on the highly efficient and selective oxidation of sulfides to sulfoxides and sulfones with t-BuOOH catalyzed by La2O3
Mandal, Mrinmay,Chakraborty, Debashis
, p. 12111 - 12122 (2015/02/19)
The selective oxidation of various sulfides to sulfoxides by a simple, efficient, and environmentally benign method is of prime focus. In this paper, we have explored a highly efficient protocol for the oxidation of alkyl aryl sulfides to sulfoxides with high selectivities catalyzed by La2O3 in the presence of 70% t-BuOOH solution (water). We obtained predominantly the monooxygenated product. The over oxidation of sulfides to sulfones was not observed under these conditions. The resulting products are obtained in good to excellent yields within a reasonable time without the use of ligands and other additives. The epoxidation of the double bond as well as allylic oxidation are not observed with allyl sulfides. Sulfones can be obtained quantitatively by altering the reaction conditions. The surface morphology and the catalyst reusability were verified by XRD, AFM and SEM techniques. The surface area of the La2O3 was measured using BET isotherms.
Competing reaction pathways from α-halo-α-protioalkyl aryl sulfoxides initiated by organometallic reagents
Blakemore, Paul R.,Burge, Matthew S.,Sephton, Mark A.
, p. 3999 - 4002 (2008/02/04)
The reactions of syn-1-haloethyl p-chlorophenyl sulfoxides (halogen = Cl, Br) with main-group organometallic reagents (n-BuMgCl, MeLi, n-BuLi, s-BuLi, and t-BuLi) in THF and PhMe solvents were examined. Product distributions were analyzed to determine the