One-Pot Multiple-Step Integration Strategy for Efficient Fixation of CO₂ into Chain Carbonates by Azolide Anions Poly(ionic liquid)s

Abstract

The multiple-step transformation of CO2 greatly enriches the diversity and value of products and provides more possibilities for the sustainable development of green chemistry. However, it puts forward stricter requirements for the versatility of catalysts. A series of basic porous ionic polymers incorporating azolide anions (BA-PILs) were facilely synthesized via radical polymerization followed by a successive ion-exchange strategy. A one-pot multiple-step integration strategy coupling cycloaddition and transesterification were explored to synthesize chain carbonates without the separation of intermediate products. High catalytic activity, stable recyclability, and chain carbonate compatibility were achieved in the absence of any cocatalyst. Combined with catalysts’ characterization, in situ IR analysis, and density functional theory (DFT) calculation of BA-PILs rationally explained the dual roles of azolide anions in the one-pot synthesis. The construction of functional BA-PILs as a versatile platform provides an original idea for the efficient insertion of CO2 into chain carbonates.

Greenery-inspired nanoengineering of bamboo-like hierarchical porous nanotubes with spatially organized bifunctionalities for synergistic photothermal catalytic CO2 fixation

“…44,45 Poly(ionic liquid)s (PILs), as a class of functional materials with tunable catalytic active sites and designable structure, and satisfactory physicochemical property, has spurred great interest in the cycloaddition of CO 2 to epoxides. 46,47 Several studies have reported that the nucleophile properties of PILs can effectively catalyze the cycloaddition of CO 2 to cyclic carbonates under relatively mild conditions. 48,49 However, the PILs usually exhibit dissatised CO 2 cycloaddition performance because of the lack of a well-developed pore structure that allows insufficient exposure of the active site.…”

Preparation of the 1-Methylimidazole Borane/Tetrazole System for Hypergolic Fuels

“…ALIE is an excellent method to discuss the possible area which would react with the electricity-rich group. In these reactions mentioned above, the BH 3 group was the most electricity-rich group, which could react with positively charged regions, such as the N–H in the triazole or the tetrazole, which was quantified as displayed by the maximum points of the ESP mapping [ 31 , 32 , 33 , 34 ]. As shown in Figure 14 , the area surrounding N–H in the tetrazole obtained the maximum value of the ESP mapping, which might be the most possible region among these azoles to react with the BH 3 group in the 1-methylimidazole borane complex.…”

Synthesis of porous poly(ionic liquid)s for chemical CO2fixation with epoxides

“…These PILs with moderate surface area and IL content were used as the heterogeneous catalysts in the CO 2 cycloaddition, exhibiting high yields under relatively mild conditions. 106,116 The wettability of the porous PILs can be adjusted by varying the linkers. DVB was the most frequently used linker with a hydrophobic property, while hydrophilic EGDMA was used to increase the hydrophilicity of porous PILs.…”