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 Highly Efficient and Ambient-Temperature Synthesis of Benzimidazoles via Co(III)/Co(II)-Mediated Redox Catalysis

Catalysts ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 59
Author(s):  
Renyuan Zhong ◽  
Wulin Xiong ◽  
Haoyuan Zhang ◽  
Tongtong Zeng ◽  
Shanshan Gong ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Ambient Temperature ◽  
Efficient Method ◽  
Solvent Free ◽  
Redox Catalysis ◽  
Temperature Synthesis ◽  
Fast Green ◽  
Stoichiometric Amount ◽  
Highly Efficient ◽  
Solvent Free Conditions

An efficient method for ambient-temperature synthesis of a variety of 2-substituted and 1,2-disubstituted benzimidazoles from aldehyde and phenylenediamine substrates has been developed by utilizing Co(III)/Co(II)-mediated redox catalysis. The combination of only 1 mol% of Co(acac)2 and stoichiometric amount of hydrogen peroxide provides a fast, green, and mild access to a diversity of benzimidazoles under solvent-free conditions.

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.

A new mild, clean and highly efficient method for the preparation of graphene quantum dots without by-products

2015 ◽  
Vol 3 (34) ◽  
pp. 6871-6876 ◽  
Author(s):  
Chong Zhu ◽  
Siwei Yang ◽  
Gang Wang ◽  
Runwei Mo ◽  
Peng He ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Quantum Dots ◽  
Graphene Oxide ◽  
Tungsten Oxide ◽  
Hydroxyl Radicals ◽  
Efficient Method ◽  
Graphene Quantum Dots ◽  
Catalytic Decomposition ◽  
Highly Efficient ◽  
By Products

We demonstrated that graphene oxide can be oxidized and cut into graphene quantum dots by hydroxyl radicals which is obtained by catalytic decomposition of hydrogen peroxide with a tungsten oxide nanowire catalyst.

Simple and efficient method for the oxidation of sulfides to sulfones using hydrogen peroxide and a Mo(VI) based catalyst

2009 ◽  
Vol 10 (14) ◽  
pp. 1948-1951 ◽  
Author(s):  
Kandasamy Jeyakumar ◽  
Rajan Deepan Chakravarthy ◽  
Dillip Kumar Chand
Keyword(s):  
Hydrogen Peroxide ◽  
Efficient Method ◽  
Oxidation Of Sulfides

scholarly journals An Efficient Method for Synthesis of N-tert-Butyl Amides Using Oxalic Acid Dihydrate in Solvent-Free Condition

2014 ◽  
Vol 2014 ◽  
pp. 1-4
Author(s):  
Masoud Mokhtary ◽  
Seyedeh Khadijeh Nasernezhad
Keyword(s):  
Oxalic Acid ◽  
Efficient Method ◽  
Butyl Acetate ◽  
Solvent Free ◽  
Free Condition ◽  
Oxalic Acid Dihydrate ◽  
Tert Butyl ◽  
Solvent Free Condition

An efficient method for the synthesis of N-tert-butyl amides by reaction of nitriles with tert-butyl acetate or tert-butanol is described using oxalic acid dihydrate in solvent-free condition. The result showed that tert-butyl acetate served as a relatively better source of tert-butyl carbocation than tert-butanol.

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.

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