Synthesis, Characterization and Applications of Dicationic Ionic Liquids in Organic Synthesis

Saghanezhad, Seyyed Jafar

doi:10.2174/1570193x16666190508091231

Cited by 30 publications

(18 citation statements)

References 98 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to their unique properties, dicationic ILs (DILs) have been widely used in thermal storage [67,129], organic synthesis [130], anti-corrosion [131], or as surface-active agents [132], and they are less toxic than their monocationic counterparts [133]. Figure 16.…”

Section: Dicationic Ilsmentioning

confidence: 99%

Thermal Stability of Ionic Liquids: Current Status and Prospects for Future Development

Cheng

2021

Processes

103

View full text Add to dashboard Cite

Ionic liquids (ILs) are the safest solvent in various high-temperature applications due to their non-flammable properties. In order to obtain their thermal stability properties, thermogravimetric analysis (TGA) is extensively used to analyze the kinetics of the thermal decomposition process. This review summarizes the different kinetics analysis methods and finds the isoconversional methods are superior to the Arrhenius methods in calculating the activation energy, and two tools—the compensation effect and master plots—are suggested for the calculation of the pre-exponential factor. With both parameters, the maximum operating temperature (MOT) can be calculated to predict the thermal stability in long-term runnings. The collection of thermal stability data of ILs with divergent cations and anions shows the structure of cations such as alkyl side chains, functional groups, and alkyl substituents will affect the thermal stability, but their influence is less than that of anions. To develop ILs with superior thermal stability, dicationic ILs (DILs) are recommended, and typically, [C4(MIM)2][NTf2]2 has a decomposition temperature as high as 468.1 °C. For the convenience of application, thermal stability on the decomposition temperature and thermal decomposition activation energy of 130 ILs are summarized at the end of this manuscript.

show abstract

Section: Dicationic Ilsmentioning

confidence: 99%

Thermal Stability of Ionic Liquids: Current Status and Prospects for Future Development

Cheng

2021

Processes

103

View full text Add to dashboard Cite

show abstract

“…ILs present interesting properties, such as low vapor pressure, high thermal, chemical, and electrochemical stability, being non-flammable [5][6][7], and the ability to dissolve or extract several chemicals (organics and inorganics; polar and nonpolar) [8], and can be used in separations [9] or as catalysts, among other important properties [10][11][12]. It should be noted that these characteristics are not common to all ionic liquids, and properties depend on the ions.…”

Section: Deep Eutectic Solvents (Dess)mentioning

confidence: 99%

Deep Eutectic Solvents: Are They Safe?

et al. 2021

View full text Add to dashboard Cite

Deep eutectic solvents (DESs) are a relatively new type of solvent that have attracted the attention of the scientific community due to their environmentally friendly properties and their versatility in many applications. Many possible DESs have been described and, thus, it is not easy to unequivocally characterize and generalize their properties. This is especially important in the case of the (eco)toxicity information that can be found for these mixtures. In this review, we collect data on the human and environmental toxicity of DESs, with the aim of gathering and exploring the behavioral patterns of DESs. The toxicity data found were analyzed attending to different factors: hydrogen bond donors or acceptors that form part of the eutectic mixture, pH, and the presence of organic acids in the DES molar ratio of the components, or interactions with natural compounds. In the case of ecotoxicity, results generally depend on the biomodel studied, along with other factors that have been also revised. Finally, we also carried out a revision of the biodegradation of DESs.

show abstract

“…This mini-review is focused on the organocatalytic applications of imidazolium-based DILs, also associated with polymers, nanomaterials, and various composites reported in the literature in the last six years; this specific research field being very recent. To the best of our knowledge, only two recent reviews are reported in the literature about the properties and application of DILs; however, these documents do not specifically treat organocatalysis and do not extensively review the DILs use in organic synthesis from 2016 onwards [ 12 , 13 ]. We thus decided to start from these two reviews, reporting the results of DILs organocatalysis from 2016.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Imidazolium-Based Dicationic Ionic Liquids as Organocatalysts: A Mini-Review

et al. 2022

View full text Add to dashboard Cite

Imidazolium-based dicationic ionic liquids (DILs) are gaining considerable space in the field of organocatalysis mainly due to the opportunities in offering new possible applicable structural variations. In addition to the well-known variables which made the ionic liquids (ILs) famous as the type of cation and anion used, the nature of the molecular spacer moiety turns out a further possibility to improve some physicochemical properties, for example, solubility, acidity, electrochemical behavior, and so on. For this reason, this class of ionic liquids has been considered as possible competitors to their corresponding monocationic salts in replacing common catalysts in organic synthesis, particularly in cases in which their bidentate nature could positively affect the catalytic activity. This mini-review is intended to highlight the progress carried out in the last six years in the field of organocatalysis, including DILs as such and as hybrids with polymers, nanomaterials, and composites.

show abstract

Synthesis, Characterization and Applications of Dicationic Ionic Liquids in Organic Synthesis

Cited by 30 publications

References 98 publications

Thermal Stability of Ionic Liquids: Current Status and Prospects for Future Development

Thermal Stability of Ionic Liquids: Current Status and Prospects for Future Development

Deep Eutectic Solvents: Are They Safe?

Recent Advances in Imidazolium-Based Dicationic Ionic Liquids as Organocatalysts: A Mini-Review

Contact Info

Product

Resources

About