Sulfric acid as Effective Catalyst for the Oxidation of 2-Methyl Naphthalene by hydrogen peroxide
نویسندگان
چکیده
The oxidation of 2-Methylnaphthalene (2-MN) was carried out in actic acid with 30%H2O2. 2-Methyl-1,4Naphthoquinone (2-MNQ) was obtained in a yield of 81.3% when sulfric acid used as catalyst. The aromatic substituted pathway is speculated as the dominated oxidation pathway with a higher conversion than the epoxidation one due to the activity of CH3CO3H2 + formed by actic acid and H+ supplied from sulfric acid. The reaction has been studied by varying different parameters like dosages of 30% H2O2 and actic acid, reaction time. Compared to the conventional preparation of Vitamin K3, this method could be economical and ecofriendly as the traditional yield only 30-50% and chromium pollution.
منابع مشابه
Cellulose Sulfuric Acid: As an Efficient Bio Polymer Based Catalyst for the Selective Oxidation of Sulfides and Thiols by Hydrogen Peroxide
Cellulose sulfuric acid as a bio-polymer based solid catalyst efficiently catalyzes the selectively oxidation of sulfides to sulfoxides and thiols to disulfides using hydrogen peroxide as a green oxidant with good yields at room temperature. The developed method offers a number of advantages such as high selectivity, mild reaction conditions, simple operation, cleaner reaction profiles, low...
متن کاملAliphatic alcohols oxidation with Hydrogen Peroxide in water catalyzed by supported Phosphotungstic acid (PTA) on Silica coated MgAl2O4 nanoparticles as a recoverable catalyst
In this paper, a novel catalyst (MgAl2O4@SiO2-PTA) was proposed for the green oxidation of aliphatic alcohols. The resultant composite was characterized by different techniques, such as X-ray diffraction (XRD), SEM, FT-IR, EDX and Brunauer-Emmett-Teller (BET) surface area analysis. The prepared nanocomposite was used as a catalyst for oxidation of aliphatic alco...
متن کاملAliphatic alcohols oxidation with Hydrogen Peroxide in water catalyzed by supported Phosphotungstic acid (PTA) on Silica coated MgAl2O4 nanoparticles as a recoverable catalyst
In this paper, a novel catalyst (MgAl2O4@SiO2-PTA) was proposed for the green oxidation of aliphatic alcohols. The resultant composite was characterized by different techniques, such as X-ray diffraction (XRD), SEM, FT-IR, EDX and Brunauer-Emmett-Teller (BET) surface area analysis. The prepared nanocomposite was used as a catalyst for oxidation of aliphatic alco...
متن کاملOxidative desulfurization of light fuel oil by using hydrogen peroxide in the presence of acetic acid catalyst
Hydrogen peroxide as an oxidant agent was used for desulfurization of a petroleum hydrocarbon fraction (C10-C22) with boiling range of 175-375 ℃, (light fuel oil) in the presence of acetic acid as catalyst. The oxidation was performed in an ultrasonic bath. It is found that increasing the amount of hydrogen peroxide lead to increase the oxidation rate and so desulfurizatio...
متن کاملSelective oxidation of sulfides to sulfoxides by a vanadium-based catalyst using 30% hydrogen peroxide
The vanadium-based catalyst, acts as a homogeneous catalyst for the selective oxidation of various kinds of sulfides with 30% aqueous H2O2. Vanadium-based catalyst was successfully used as the oxygen source for the oxidation of sulfides to sulfoxides for the first time. The sulfoxides were obtained in a good way to high yields without any detectable over-oxidation to sulfones under normal condi...
متن کامل