An Efficient Oxidation of Sulfides to Sulfones with Urea–Hydrogen Peroxide in the Presence of Phthalic Anhydride in Ethyl Acetate

Synthesis ◽  
2018 ◽  
Vol 50 (11) ◽  
pp. 2231-2234 ◽  
Author(s):  
Igor Likhotvorik ◽  
Marlon Lutz ◽  
Marta Wenzler
Keyword(s):  
Hydrogen Peroxide ◽  
Ethyl Acetate ◽  
Phthalic Anhydride ◽  
Oxidation Product ◽  
Environmentally Benign ◽  
Metal Free ◽  
Oxidation Of Sulfides ◽  
Urea Hydrogen Peroxide

A metal-free, environmentally benign oxidation of substituted sulfides directly to their corresponding sulfones is described. Using urea-hydrogen peroxide and phthalic anhydride in ethyl acetate clean conversion into the sulfone was achieved without observation of the possible sulfoxide oxidation product.

Oxidation Reactions Catalyzed by Polyoxomolybdate Salts

2013 ◽  
Vol 68 (5-6) ◽  
pp. 587-597 ◽  
Author(s):  
Bo Zhang ◽  
Su Li ◽  
Alexander Pöthig ◽  
Mirza Cokoja ◽  
Shu-Liang Zang ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Environmentally Benign ◽  
Oxidation Reactions ◽  
X Ray Diffraction ◽  
Oxidation Of Sulfides ◽  
Urea Hydrogen Peroxide ◽  
Ionic Compounds ◽  
Solid State Structures ◽  
Epoxidation Of Olefins

Ionic compounds containing the polyoxomolybdate anion [Mo6O19]2- and [(n-C4H9)4P]+ (tetrabutylphosphonium), [(n-C4H9)3P(n-C14H29)]+ (tributyl (tetradecyl)phosphonium), [Bmim]+ (1- butyl-3-methylimidazolium) and [Dbmim]+ (1,2-dimethyl-3-butylimidazolium) cations were prepared and characterized, including the determination of three of the solid state structures by singlecrystal X-ray diffraction. These compounds were applied as catalysts for the epoxidation of olefins with urea hydrogen peroxide (UHP) as oxidant in the ionic liquid [Bmim]PF6. Additionally, the oxidation of sulfides to sulfoxides with hydrogen peroxide (H2O2) in several solvents was investigated. The polyoxomolybdate catalysts showed a good performance for epoxidation of olefins as well as for oxidation of sulfides. Furthermore, the catalysts can be recycled several times in oxidation reactions. We present this methodology for the oxidation reaction in a simple, economically, technically, and environmentally benign manner

scholarly journals Epoxidation of Soybean Oil Catalyzed by [π-C5H5NC16H33]3[PW4O16] with Hydrogen Peroxide and Ethyl Acetate as Solvent

2011 ◽  
Vol 6 (8) ◽  
pp. 1934578X1100600
Author(s):  
Shuang-Fei Cai ◽  
Li-Sheng Wang
Keyword(s):  
Hydrogen Peroxide ◽  
Soybean Oil ◽  
Ethyl Acetate ◽  
Catalytic System ◽  
Elemental Analysis ◽  
Environmentally Benign ◽  
High Recovery ◽  
Highly Efficient ◽  
Excellent Activity

A new environmentally benign and highly efficient catalytic system [π-C5H5NC16H33]3[PO4(WO3)4]/H2O2/CH3COOC2H5 for the epoxidation of soybean oil displayed excellent activity and high recovery. The change of the catalyst during the reaction was investigated by elemental analysis, FTIR and 31P NMR.

A new halide-free efficient reaction-controlled phase-transfer catalyst based on silicotungstate of [(C18H37)2(CH3)2N]3[SiO4H(WO5)3] for olefin epoxidation, oxidation of sulfides and alcohols with hydrogen peroxide

RSC Advances ◽  
2014 ◽  
Vol 4 (61) ◽  
pp. 32054-32062 ◽  
Author(s):  
Baochun Ma ◽  
Wei Zhao ◽  
Fuming Zhang ◽  
Yingshuai Zhang ◽  
Songyun Wu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Phase Transfer ◽  
Alcohol Oxidation ◽  
Phase Transfer Catalyst ◽  
Environmentally Benign ◽  
Olefin Epoxidation ◽  
Oxidation Of Sulfides ◽  
Highly Efficient

A new environmentally benign and highly efficient reaction-controlled phase-transfer catalyst for olefin epoxidation, sulfide and alcohol oxidation was developed.

Alkene epoxidation with urea–hydrogen peroxide complex and PS–DVB supported phthalic anhydride

2005 ◽  
Vol 46 (10) ◽  
pp. 1643-1645 ◽  
Author(s):  
Chiara Ghiron ◽  
Lorenzo Nannetti ◽  
Maurizio Taddei
Keyword(s):  
Hydrogen Peroxide ◽  
Phthalic Anhydride ◽  
Urea Hydrogen Peroxide
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