History repeats itself again: Will the mistakes of the past for ILs be repeated for DESs? From being considered ionic liquids to becoming their alternative: the unbalanced turn of deep eutectic solvents

Abstract

The establishment Deep Eutectic Solvents (DESs) as a new class of green solvents was essentially grounded on naïve comparisons with Ionic Liquids (ILs). The easiness of DESs preparation afforded the...

Green materials with promising applications: cyclodextrin-based deep eutectic supramolecular polymers

“…71 The researchers developed macromolecular chemistry by introducing DESs with properties similar to those of ILs. 72,73 Binary DESP systems are the polymerizations of macrocyclic copolymer monomer cyclodextrin (HBA) and HBD precursors constructed by hydrogen bonds and other non-covalent interactions (Table 2). 74,75 The synthesis process of binary DESPs requires no additional chemicals.…”

Kamlet–Taft Parameters of Deep Eutectic Solvents and Their Relationship with Dissolution of Main Lignocellulosic Components

“…Of the developed solvent systems, deep eutectic solvents (DESs) have been recognized as an emerging class of functional solvents for the dissolution of lignocellulosic components. Generally, DESs are composed of two components via the hydrogen bonding interaction to generate a eutectic mixture, and the two components are hydrogen-bond donor (HBD) and hydrogen-bond acceptor (HBA), respectively. , The DESs designed by selecting suitable HBDs and HBAs of different properties could enable them to possess various unique advantages, e.g., strong solvation ability, good designability, low cost, facile preparation, high biocompatibility, etc. − These characteristics of DESs promote the continually growing interest in constructing efficient DESs to dissolve cellulose, hemicellulose, or lignin. − As reported, DESs can be defined as the mixture of two or more pure compounds with a eutectic point temperature below that for an ideal liquid mixture, showing significantly negative deviations from ideality . More importantly, the composition of DESs should be in a certain range, not just in a fixed stoichiometric proportion .…”

Copper(i)-catalyzed click chemistry in deep eutectic solvent for the syntheses of β-d-glucopyranosyltriazoles

“…[98][99][100][101][102][103] However in a very recent review, Marrucho and Guazzelli et al expressed serious concerns for the general notion of considering DES as a much better alternative to ionic liquids. 104 Although, they concluded DESs (with wisely selected starting components) as a promising environmentally benign solvent to replace traditional volatile organic solvents. To the best of our literature search, the use of DES in click inspired syntheses of glycoconjugates have not been investigated so far.…”