scholarly journals Efficient and selective hydrogen peroxide-mediated oxidation of sulfides in batch and segmented and continuous flow using a peroxometalate-based polymer immobilised ionic liquid phase catalyst

2015 ◽  
Vol 17 (3) ◽  
pp. 1559-1571 ◽  
Author(s):  
S. Doherty ◽  
J. G. Knight ◽  
M. A. Carroll ◽  
J. R. Ellison ◽  
S. J. Hobson ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Ionic Liquid ◽  
Liquid Phase ◽  
Continuous Flow ◽  
Sulfide Oxidation ◽  
Oxidation Of Sulfides ◽  
Highly Efficient ◽  
Mediated Oxidation

Highly efficient sulfide oxidation has been achieved under segmented and continuous flow using a peroxometalate-based polymer immobilised ionic liquid phase catalyst.

An efficient recyclable peroxometalate-based polymer-immobilised ionic liquid phase (PIILP) catalyst for hydrogen peroxide-mediated oxidation

2012 ◽  
Vol 14 (4) ◽  
pp. 925 ◽  
Author(s):  
Simon Doherty ◽  
Julian G. Knight ◽  
Jack R. Ellison ◽  
David Weekes ◽  
Ross W. Harrington ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Ionic Liquid ◽  
Liquid Phase ◽  
Mediated Oxidation

scholarly journals Efficient and selective oxidation of sulfides in batch and continuous flow using styrene-based polymer immobilised ionic liquid phase supported peroxotungstates

RSC Advances ◽  
2016 ◽  
Vol 6 (77) ◽  
pp. 73118-73131 ◽  
Author(s):  
S. Doherty ◽  
J. G. Knight ◽  
M. A. Carroll ◽  
A. R. Clemmet ◽  
J. R. Ellison ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Phase ◽  
Selective Oxidation ◽  
Continuous Flow ◽  
High Selectivity ◽  
Oxidation Of Sulfides

Good conversion and high selectivity for sulfoxidation have been achieved under segmented and continuous flow using a polystyrene-based polymer immobilised ionic liquid phase (PIILP) peroxotungstate.

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.

scholarly journals Highly Efficient Selective Oxygenation of Sulfides to Sulfoxides by Oxalic Acid Dihydrate in the Presence of H2O2

2012 ◽  
Vol 9 (2) ◽  
pp. 863-868 ◽  
Author(s):  
Masoud Mokhtary ◽  
Mohammad Qandalee ◽  
Masoumeh Rastegar Niaki
Keyword(s):  
Hydrogen Peroxide ◽  
Oxalic Acid ◽  
Ambient Temperature ◽  
Efficient Method ◽  
Oxalic Acid Dihydrate ◽  
Oxidation Of Sulfides ◽  
Highly Efficient

A highly efficient method for the oxidation of sulfides to sulfoxides using oxalic acid dihydrate in the presence of hydrogen peroxide has been developed. A versatile procedure for the oxidation of sulfides to sulfoxides without any over-oxidation to sulfones has been reported. This procedure cleanly oxidizes sulfides to the corresponding sulfoxides in excellent yields at ambient temperature.

scholarly journals Keggin heteropolycompounds as catalysts for liquid-phase oxidation of sulfides to sulfoxides/sulfones by hydrogen peroxide

2011 ◽  
Vol 12 (8) ◽  
pp. 726-730 ◽  
Author(s):  
Gustavo P. Romanelli ◽  
Paula I. Villabrille ◽  
Cármen V. Cáceres ◽  
Patricia G. Vázquez ◽  
Pietro Tundo
Keyword(s):  
Hydrogen Peroxide ◽  
Liquid Phase ◽  
Liquid Phase Oxidation ◽  
Oxidation Of Sulfides ◽  
Phase Oxidation

Continuous flow hydroformylation using supported ionic liquid phase catalysts with carbon dioxide as a carrier

2010 ◽  
Vol 39 (36) ◽  
pp. 8501 ◽  
Author(s):  
Ulrich Hintermair ◽  
Zenxing Gong ◽  
Ana Serbanovic ◽  
Mark J. Muldoon ◽  
Catherine C. Santini ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquid ◽  
Liquid Phase ◽  
Continuous Flow ◽  
Supported Ionic Liquid

Bimetallic titanium complex catalyzed enantioselective oxidation of thioethers using aqueous H2O2 as a terminal oxidant

RSC Advances ◽  
2015 ◽  
Vol 5 (59) ◽  
pp. 47732-47739 ◽  
Author(s):  
Prasanta Kumar Bera ◽  
Naveen Gupta ◽  
Sayed H. R. Abdi ◽  
Noor-ul H. Khan ◽  
Rukhsana I. Kureshy ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic System ◽  
Sulfide Oxidation ◽  
Environmentally Benign ◽  
Aqueous Hydrogen Peroxide ◽  
Titanium Complex ◽  
Enantioselective Oxidation ◽  
Highly Efficient

This study represents a highly efficient sulfide oxidation catalytic system using a non-toxic Ti-catalyst and environmentally benign aqueous hydrogen peroxide.

Remarkable efficiency of iron(III) versus manganese(III) tetraphenylporphyrins as catalysts for fast and quantitative oxidation of sulfides into sulfones by hydrogen peroxide

1998 ◽  
Vol 76 (6) ◽  
pp. 770-775 ◽  
Author(s):  
Antonio Marques ◽  
Massimo di Matteo ◽  
Marie-Françoise Ruasse
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic Activity ◽  
Radical Cation ◽  
Oxygen Transfer ◽  
Sulfide Oxidation ◽  
Oxidation Of Sulfides ◽  
Active Intermediate

The efficiency of various metallo-phtalocyanines (Pht) and -tetraphenylporphyrins (TPP) as catalysts for the H2O2 oxidations of dibenzylsulfide, phenylchloroethylsulfide, and thioanisole is investigated in ethanol and acetonitrile, using imidazole as a cocatalyst. Neither PhtNiII nor TPPCoII exhibits any catalytic activity. PhtMnII and TPPMnIIICl accelerate markedly these reactions but do not promote quantitative oxidations, at most 70% of the sulfides being transformed into sulfoxides. In contrast, with PhtFeII sulfoxides are obtained with a 100% yield from sulfides. Finally, the only catalyst able to oxidize sulfides rapidly (<5 min), completely and quantitatively (100% sulfone) is TPPFeIIICl in EtOH. The absence of any by-product, disulfide in particular, suggests that a free sulfenium radical cation is not an active intermediate in these reactions. The marked differences in the behaviour of TPPMnIIICl and TPPFeIII Cl are analyzed by comparing the rates of the catalyst decomposition, of the sulfoxide and sulfone formation as a function of the hydrogen peroxide concentration. The results are discussed in terms of a competition between the several oxidative pathways and a possible mechanism for the oxygen transfer to sulfides.Key words: sulfide, oxidation, H2O2, manganese(III) or iron(III) tetraphenylporphyrin.

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