scholarly journals Improvement the Activity and Selectivity of Fenton System in the Oxidation of Alcohols

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Guoqiang Yang ◽  
Qiuxing Lin ◽  
Xingbang Hu ◽  
Youting Wu ◽  
Zhibing Zhang
Keyword(s):  
Organic Solvent ◽  
Benzyl Alcohol ◽  
Room Temperature ◽  
Oxidation Process ◽  
Catalyst System ◽  
Oxidation Of Alcohols ◽  
Fenton System

The reactivity and selectivity of Fenton system (Fe2+/H2O2) were improved with N-hydroxyphthalimide (NHPI) as cocatalyst. The oxidation process of benzyl alcohol to benzaldehyde has been studied. The reaction catalyzed by this new Fe2+/H2O2/NHPI system can be well performed under room temperature without adding any organic solvent. Besides, this catalyst system is effective for the oxidation of different alcohols.

H2O2 in WEB: a highly efficient catalyst system for the Dakin reaction

2015 ◽  
Vol 17 (9) ◽  
pp. 4533-4536 ◽  
Author(s):  
Bishwajit Saikia ◽  
Parinita Borah ◽  
Nabin Chandra Barua
Keyword(s):  
Transition Metal ◽  
Organic Solvent ◽  
Room Temperature ◽  
Reaction Times ◽  
Water Extract ◽  
Catalyst System ◽  
Metal Catalyst ◽  
Efficient Catalyst ◽  
Transition Metal Catalyst ◽  
Neat Water

Without using any transition metal catalyst, ligand, base, toxic or hazardous reagent, additives/promoters and organic solvent, Dakin reactions have been successfully carried out by using H2O2 in neat ‘Water Extract of Banana’ (WEB) at room temperature under aerobic conditions in very short reaction times.

The formation of iron(III) oxide hydroxides from iron(II) oxalate

1976 ◽  
Vol 29 (10) ◽  
pp. 2149 ◽  
Author(s):  
RJ Atkinson
Keyword(s):  
Sodium Hydroxide ◽  
Intermediate Product ◽  
Room Temperature ◽  
Oxidation Process ◽  
Solid Phase ◽  
Bubble Flow ◽  
Air Bubble ◽  
Dissolved Iron ◽  
Complete Reaction ◽  
Iron Concentrations

FeC2O4,2H2O(s) suspensions in sodium hydroxide solutions were oxidized by a fast air-bubble flow at room temperature until complete reaction had occurred. With amounts of NaOH in the range OH/Fe initial mole ratio ≤1.0, the reaction is FeC2O4, 2H2(s)+ OH-(aq)+ �O2(g) → ⅔γFeOOH(s)+1/3Fe(C2O4)33-(aq)+13/6H2O With OH/Fe mole ratio ≥ 2.0 the reaction is FeC2O4, 2H2(s)+ 2OH-(aq)+ �O2(g) → αFeOOH(s)+(C2O4)33-(aq)+ 5/2 H2O Mixtures of goethite (α-FeOOH) and lepidocrocite (γ-FeOOH) form at intermediate OH/Fe mole ratio. The oxidation process occurs in a solid-phase intermediate product. Comparisons with similar oxidations of iron(11)sulphate solutions showed that γ-FeOOH formation was favoured and α-FeOOH formation inhibited in the iron(11) oxalate oxidation. These differences are related to pH and dissolved iron concentrations.

In situ formation of luminescent CdSe QDs in a metallohydrogel: a strategy towards synthesis, isolation, storage and re-dispersion of the QDs

Nanoscale ◽  
2017 ◽  
Vol 9 (36) ◽  
pp. 13820-13827 ◽  
Author(s):  
Sayantan Chatterjee ◽  
Uday Maitra
Keyword(s):  
Organic Solvent ◽  
Bile Salt ◽  
Room Temperature ◽  
Cdse Qds ◽  
One Step ◽  
In Situ Formation

We describe a practical, one step, room temperature in situ synthesis of luminescent CdSe QDs using a bile salt derived metallogel, followed by their isolation from the gel and re-dispersion in an organic solvent.

Room temperature selective oxidation of benzyl alcohol under base-free aqueous conditions on Pt/TiO2

2017 ◽  
Vol 99 ◽  
pp. 6-9 ◽  
Author(s):  
Juanjuan Liu ◽  
Shihui Zou ◽  
Linfang Lu ◽  
Hongting Zhao ◽  
Liping Xiao ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Room Temperature ◽  
Oxidation Of Benzyl Alcohol ◽  
Aqueous Conditions
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