Alkylation of thiophenic compounds catalyzed by deep eutectic solvents

Tang, Xiaodong; Zhang, Yong-fen; Li, Jing-jing

doi:10.1016/j.catcom.2015.07.014

Cited by 11 publications

(2 citation statements)

References 28 publications

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“…In addition, DESs can be prepared easily by mixing a hydrogen bond donor (HBD) with a hydrogen bond acceptor (HBA), without requiring any complex synthesis and purification steps. More interestingly, a large number of cheap and renewable compounds can act as the HBD or HBA for forming DES, which makes this spectrum of solvent more affordable and sustainable than ILs. , Because of these attractive characteristics, DESs are widely expected as promising solvents for various chemical processes, − among which CO 2 absorption is of particular interest. Li et al first measured the CO 2 solubility in the eutectic mixtures of choline chloride (ChCl; acting as HBA) and urea (acting as HBD) with molar ratios of 1:1.5, 1:2, and 1:2.5, as a function of pressure up to 13,000 kPa and temperature ranging from 313.15 to 333.15 K. Afterward, Leron and Li − reported the CO 2 solubility in DESs formed by mixing ChCl and HBDs of glycerol, urea, and ethylene glycol at the ratio of 1:2.…”

Section: Introductionmentioning

confidence: 99%

Carbon Dioxide Solubility in Phosphonium-Based Deep Eutectic Solvents: An Experimental and Molecular Dynamics Study

Wang

Cheng

Song

et al. 2019

Ind. Eng. Chem. Res.

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Considering the great potential of deep eutectic solvent (DES) for CO2 capture, this work studies the CO2 solubility in DESs by combining experimental measurement and molecular dynamics (MD) simulation. First, four phosphonium-based DESs have been prepared in laboratory, involving two types of hydrogen bond acceptors (HBAs), namely tetrabutylphosphonium bromide (TBPB) and allyltriphenylphosphonium bromide (ATPPB), and two types of hydrogen bond donors (HBDs), namely phenol (PhOH) and diethylene glycol (DEG). The CO2 solubility in the obtained DESs has been measured under 313.15 K -333.15 K and pressure below 2000 kPa, and compared with that of previously reported DESs and ionic liquids. Second, MD simulations have been performed to study the microscopic behaviors of the involved DESs and mixtures. Through the analyses of radial distribution functions (RDFs), spatial distribution functions (SDFs) and intermolecular interaction energies, the eutectic formation and CO2 absorption mechanisms, as well as the effect of HBA/HBD type and molar ratio are interpreted.

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Section: Introductionmentioning

confidence: 99%

Carbon Dioxide Solubility in Phosphonium-Based Deep Eutectic Solvents: An Experimental and Molecular Dynamics Study

Wang

Cheng

Song

et al. 2019

Ind. Eng. Chem. Res.

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“…Recently, as an efficient and environmentally friendly catalyst, the deep eutectic solvent (DES) , has attracted much attention. Different kinds of DESs have been applied in alkylation, − oxidation, , esterification, , transesterification, decomposition of glucose reaction, , and selective separation of ammonia , successfully. For example, phosphonium-based DES was employed as the catalyst by Williamson, and an efficient catalytic performance was obtained with free fatty acids and glycerol as substrates .…”

Section: Introductionmentioning

confidence: 99%

Alkylation of Phenol and tert-Butyl Alcohol Catalyzed by Deep Eutectic Solvents under Mild Conditions

Xiong

Zhang

Yang

et al. 2021

Ind. Eng. Chem. Res.

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tert-Butyl phenol is an important intermediate for organic synthesis and the preparation of tert-butyl phenol under mild conditions is of great significance. In our work, five kinds of deep eutectic solvents were synthesized to catalyze the alkylation of phenol and tert-butyl alcohol. The deep eutectic solvent consisting of choline bisulfate (ChBf) and p-toluene sulfonic acid (p-TsOH) was proved to be a better catalyst. By employing the response surface methodology to optimize the reaction conditions, we found that 99.5% conversion of tert-butyl alcohol was obtained at a reaction temperature of 30 °C. The temperature of alkylation reaction was much milder than those in previous reports. The kinetic model for this reaction was established based on the Runge−Kutta−Fehlberg method and the recycle performance for the catalyst was evaluated. Excellent conversion of tert-butyl alcohol can be obtained after recycling eight times. This method provides a potential route for the synthesis of tert-butyl phenol under mild conditions in industry.

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DESas Catalyst

Haghayegh

Azizi

2019

Deep Eutectic Solvents

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Alkylation of thiophenic compounds catalyzed by deep eutectic solvents

Cited by 11 publications

References 28 publications

Carbon Dioxide Solubility in Phosphonium-Based Deep Eutectic Solvents: An Experimental and Molecular Dynamics Study

Carbon Dioxide Solubility in Phosphonium-Based Deep Eutectic Solvents: An Experimental and Molecular Dynamics Study

Alkylation of Phenol and tert-Butyl Alcohol Catalyzed by Deep Eutectic Solvents under Mild Conditions

DESas Catalyst

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