Cycloaddition of carbon dioxide to butyl glycidyl ether using imidazolium salt ionic liquid as a catalyst

Catalytic performance of polymer-supported ionic liquids in the cycloaddition of carbon dioxide to allyl glycidyl ether

“…However, one can also observe a decrease in the AGE conversion when the CO 2 pressure increases from 1.55 to 1.89 MPa. A similar pressure dependence trend in the presence of ionic liquid [C 2 -mim][BF 4 ] has also been reported [28]. The authors of that study suggest that the concentration of the CO 2 reactant in the ionic liquid phase is an important factor, and that the initial increase in yield at low pressure is due to an increase in the CO 2 concentration, and that the decrease in yield at elevated pressure is an effect of dilution by excessive quantities of CO 2 .…”

“…The effects of the counteranion on the reactivity are due to the combination of nucleophilicity and steric hindrance, where the Brcounterion has both higher steric hindrance and higher nucleophilicity than Cl - [27,28]. The lower activity of Br -than Cl -suggests that the steric hinderance of the MPR Catalytic performance of polymer-supported ionic liquids 357 Table 3 shows the effects of reaction temperature on the synthesis of AGC using the MPR[hmim][Cl] catalyst.…”

Catalytic performance of imidazolium based ILs in the reaction of 1,2-epoxyoctane and carbon dioxide: Kinetic study

“…However, scarcity of effective functional groups, method of functionalization, low reaction rate, difficulties in recovery of catalyst and product from the reaction mixture, etc. are observed to be major bottlenecks of the process [19]. Therefore, there is an increased demand for a potential catalyst which can avert aforementioned limitations and provide sustainable basis for cycloaddition reaction [13,15].…”

Catalytic performance of polymer-supported ionic liquids in the synthesis of glycerol carbonate from glycerol and urea

“…By comparing the activities of the counteranions, it was found that the TON of GC for MPR-IL wit Cl -was higher than Br -. The effect of the counteranion on the reactivity is due to the combination of nucleophilicity and steric hindrance, where the Br -counterion has both higher steric hindrance and higher nucleophilicity than Cl - [32,33]. The lower activity of Br -when compared to that of Cl -suggests that the steric hindrance of MPR[amim][X] plays a crucial role in the synthesis of GC.…”