One-pot extraction combined with metal-free photochemical aerobic oxidative desulfurization in deep eutectic solvent

2015 ◽  
Vol 17 (4) ◽  
pp. 2464-2472 ◽  
Author(s):  
Wenshuai Zhu ◽  
Chao Wang ◽  
Hongping Li ◽  
Peiwen Wu ◽  
Suhang Xun ◽  
...  
Keyword(s):  
Deep Eutectic Solvent ◽  
Oxidative Desulfurization ◽  
Deep Eutectic Solvents ◽  
One Pot ◽  
Metal Free ◽  
Deep Desulfurization

One-pot extraction combined with the metal-free photochemical aerobic oxidative deep-desulfurization of fuels in deep eutectic solvents was successfully achieved.

One-pot oxidative desulfurization of fuels using dual-acidic deep eutectic solvents

Fuel ◽  
2020 ◽  
Vol 265 ◽  
pp. 116967 ◽  
Author(s):  
Wei Liu ◽  
Tenghui Li ◽  
Guojia Yu ◽  
Jiangang Wang ◽  
Zhiyong Zhou ◽  
...  
Keyword(s):  
Oxidative Desulfurization ◽  
Deep Eutectic Solvents ◽  
One Pot

scholarly journals Desulfurization Performance of Choline Chloride-Based Deep Eutectic Solvents in the Presence of Graphene Oxide

Environments ◽  
2020 ◽  
Vol 7 (11) ◽  
pp. 97
Author(s):  
Chiau Yuan Lim ◽  
Mohd Faridzuan Majid ◽  
Sarrthesvaarni Rajasuriyan ◽  
Hayyiratul Fatimah Mohd Zaid ◽  
Khairulazhar Jumbri ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Oxidative Desulfurization ◽  
Deep Eutectic Solvents ◽  
Tetraethylene Glycol ◽  
Catalytic Oxidative Desulfurization ◽  
The One ◽  
Model Oil

Extractive catalytic oxidative desulfurization (ECODS) is the one of the recent methods used in fuel desulfurization which involved the use of catalyst in the oxidative desulfurization of diesel fuel. This study is aimed to test the effectiveness of synthesized choline chloride (ChCl) based deep eutectic solvent (DES) in fuel desulfurization via ECODS method, with the presence of graphene oxide (GO) as catalyst and hydrogen peroxide (H2O2) as oxidant. In this study, 16 DESs based on choline chloride were synthesized using glycerol (GLY), ethylene glycol (EG), tetraethylene glycol (TEG) and polyethylene glycol (PEG). The characterization of the synthesized DES was carried out via Fourier transform infrared spectroscopy (FTIR) analysis, density, and viscosity determination. According to the screening result, ChCl-PEG (1:4) was found to be the most effective DES for desulfurization using ECODS method, with a removal of up to 47.4% of sulfur containing compounds in model oil in just 10 min per cycle after the optimization of the reaction parameters, and up to 95% desulfurization efficiency could be achieved by six cycles of desulfurization. It is found that the addition of GO as catalyst does not increase the desulfurization performance drastically; hence, future studies for the desulfurization performance of DESs made up from ChCl and PEG and its derivatives can be done simply by using extraction desulfurization (EDS) method instead of ECODS method, for cost reduction purpose and easier regulation of DES waste into environment.

Metal-Free 1,2,3-Triazole Synthesis in Deep Eutectic Solvents

Synlett ◽  
2019 ◽  
Vol 31 (06) ◽  
pp. 605-609
Author(s):  
Filip Sebest ◽  
Samuel Haselgrove ◽  
Andrew J. P. White ◽  
Silvia Díez-González
Keyword(s):  
Deep Eutectic Solvent ◽  
Environmentally Friendly ◽  
Deep Eutectic Solvents ◽  
Metal Free ◽  
Chromatographic Techniques

The metal-free regioselective preparation of 1,5- and 1,4-disubstituted triazoles is reported through a cycloaddition–elimination sequence. Reactions were carried out in environmentally friendly deep eutectic solvent (DES) and pure products were isolated without the need for chromatographic techniques.

One step preparation of ‘ready to use’ Au@Pd nanoparticle modified surface using deep eutectic solvents and a study of its electrocatalytic properties in methanol oxidation reaction

2015 ◽  
Vol 3 (6) ◽  
pp. 3019-3028 ◽  
Author(s):  
Anu Renjith ◽  
V. Lakshminarayanan
Keyword(s):  
Methanol Oxidation ◽  
Deep Eutectic Solvent ◽  
Deep Eutectic Solvents ◽  
Methanol Oxidation Reaction ◽  
Shell Nanoparticles ◽  
One Pot ◽  
Electrocatalytic Properties ◽  
Pd Nanoparticle ◽  
One Step ◽  
Core Shell Nanoparticles

A facile one pot synthesis and in situ electrodeposition of Au–Pd core–shell nanoparticles (Au@Pd NPs) could be achieved in a deep eutectic solvent. The fabricated Au@Pd NPs modified graphite showed superior electrocatalytic properties for methanol oxidation at low activation energies.

scholarly journals Experimental investigation on the correlation between the physicochemical properties and catalytic activity of six DESs in Kabachnik-Fields reaction

2020 ◽  
Author(s):  
Shaibuna Machingal ◽  
Sreekumar Krishnapillai
Keyword(s):  
Physicochemical Properties ◽  
Deep Eutectic Solvent ◽  
Reaction Medium ◽  
Deep Eutectic Solvents ◽  
One Pot ◽  
Dimethyl Phosphite ◽  
Type Iv ◽  
Short Period ◽  
Regular Work ◽  
Work Up

Physicochemical properties of six Type IV- Deep eutectic solvents formed from ZrOCl2.8H2O/ CeCl3.7H2O   with urea, ethylene glycol & glycerol were compared. The study was performed by correlating the properties of DESs with their activity in Kabachnik-Fields reaction. Among the six DESs, lower density, viscosity, higher acidity & thermal stability were observed for DES 1(Deep eutectic solvent developed from ZrOCl2.8H2O and urea at 1: 5 ratio) and is reported as an excellent catalyst and reaction medium for the productive synthesis of α-aminophosphonates within a short period of time. One pot reaction of an aldehyde, dimethyl phosphite and amine (Kabachnik-Fields/ Phospha-Mannich reaction) took place at room temperature to give the corresponding α-aminophosphonates in good yield and the precipitation of these products in to water avoided the regular work up process. Catalyst was recycled up to five times without any loss in its activity.

Acid- and metal-free synthesis of annulated pyrroles in a deep eutectic solvent

RSC Advances ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 2281-2284 ◽  
Author(s):  
Sunil M. Rokade ◽  
Ashok M. Garande ◽  
Nazim A. A. Ahmad ◽  
Prakash M. Bhate
Keyword(s):  
Deep Eutectic Solvent ◽  
One Pot ◽  
Metal Free

One-pot, three component synthesis of annulated pyrroles in recyclable and readily available deep eutectic-solvent (DES).

Deep Eutectic Solvents: An Alternative Medium for the Preparation of Organosulfur Compounds

2020 ◽  
Vol 7 (2) ◽  
pp. 179-200
Author(s):  
Daniela Hartwig ◽  
José E.R. Nascimento ◽  
Luana Bettanin ◽  
Thalita F. B. Aquino ◽  
Raquel G. Jacob ◽  
...  
Keyword(s):  
Low Cost ◽  
Deep Eutectic Solvent ◽  
Deep Eutectic Solvents ◽  
High Viscosity ◽  
Organic Reactions ◽  
Organosulfur Compounds ◽  
Aromatic Substitution ◽  
Substitution Reactions ◽  
One Pot ◽  
Synthetic Intermediates

Deep Eutectic Solvent (DES) as a “green solvent” has been used as an alternative to replace Volatile Organic Compounds (VOCs) and traditional Ionic Liquids (ILs). In recent years, DES has gained much attention due to its excellent properties such as low cost, easy preparation, high viscosity, low vapor pressure, low volatility, high thermal stability, biodegradability and non-toxicity, among others. Other classes of compounds with increased interest are organosulfur compounds due to their applicability as synthetic intermediates in organic reactions and their high importance in pharmaceutical and agrochemical industries. This review describes the recent advances in the preparation of organosulfur compounds using DES as an alternative solvent, focusing on several types of organic reactions, including aromatic substitution reactions (SNAr), condensation, cyclocondensation, cyclization, ring-opening, thia-Michael addition, one-pot reactions and heterocyclodehydrations.

Boric acid-based ternary deep eutectic solvent for extraction and oxidative desulfurization of diesel fuel

2019 ◽  
Vol 21 (11) ◽  
pp. 3074-3080 ◽  
Author(s):  
Wei Jiang ◽  
Hao Jia ◽  
Hongping Li ◽  
Linhua Zhu ◽  
Runming Tao ◽  
...  
Keyword(s):  
Boric Acid ◽  
Diesel Fuel ◽  
Deep Eutectic Solvent ◽  
Oxidative Desulfurization ◽  
Deep Eutectic Solvents ◽  
First Time

Ternary deep eutectic solvents were used for ODS of fuels (DESs) for the first time although most research continues to be focused on binary DESs.

Light irradiation induced aerobic oxidative deep-desulfurization of fuel in ionic liquid

RSC Advances ◽  
2015 ◽  
Vol 5 (121) ◽  
pp. 99927-99934 ◽  
Author(s):  
Chao Wang ◽  
Wenshuai Zhu ◽  
Zhigang Chen ◽  
Sheng Yin ◽  
Peiwen Wu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Light Irradiation ◽  
One Pot ◽  
Metal Free ◽  
Deep Desulfurization

One-pot extraction combined with metal-free photochemical aerobic oxidative deep desulfurization of fuels in ionic liquid was successfully achieved.

Metal-free, one-pot synthesis of 2-styrylquinolines via Friedländer annulation and sp3 C-H activation using 1,3-dimethylurea and L-tartaric acid (3:1) as deep eutectic solvent†

2022 ◽  
Author(s):  
Neeli Satyanarayana ◽  
Kota Sathish ◽  
Sakkani Nagaraju ◽  
Ravinder Pawar ◽  
Mohammad Faizan ◽  
...  
Keyword(s):  
Tartaric Acid ◽  
Deep Eutectic Solvent ◽  
Simple Metal ◽  
One Pot ◽  
Metal Free ◽  
One Pot Synthesis ◽  
Dimethyl Urea ◽  
The One

A simple, metal-free protocol is reported for the one-pot synthesis of 2-styrylquinolines using a combination of 1,3-dimethyl urea (1,3-DMU) and L-tartaric acid (LTA) (in 3:1 ratio) as deep eutectic solvent...

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