Ionic‐Liquid‐Functionalized UiO‐66 Framework: An Experimental and Theoretical Study on the Cycloaddition of CO₂ and Epoxides

Abstract

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Imidazolium-based titanosilicate nanospheres as active catalysts in carbon dioxide conversion: Towards a cascade reaction from alkenes to cyclic carbonates

“…Latest strategies use various metal-organic frameworks (MOF) as Lewis acid source. Some authors reported the synthesis of MOF using a modified terephthalic acid on which trimethylammonium iodide [56], tributylammonium bromide [57] or imidazolium bromide [58,59] is anchored by post-functionalization. Other authors used terephthalic acid modified by imidazolium salt as direct organic building unit for the MOF synthesis [49,60].…”

Facile Green Synthesis of New Copper-Based Metal–Organic Frameworks: Experimental and Theoretical Study of the CO2 Fixation Reaction

“…Song et al documented a first report on the synthesis of cyclic carbonates from CO 2 and epoxides using an MOF-5/ n -Bu 4 NBr binary catalyst system . Thereafter, a series of carboxylate − MOFs or N-donor − MOFs and their functionalized − catalysts were reported by many research groups. MOFs designed using dual linker units and functionalized groups are expected to provide attractive features in the coupling reactions of CO 2 , particularly N-donor linkers and basic groups, such as NH 2 .…”

Multifunctional Phosphonium-Based Deep Eutectic Ionic Liquids: Insights into Simultaneous Activation of CO2 and Epoxide and Their Subsequent Cycloaddition

“…Nevertheless, it is difficult to separate the homogeneous catalysts from reaction systems, being a major hurdle for their large-scale applications . In order to overcome this issue, many efforts have been devoted to the attractive heterogeneous catalysts, such as metal–organic frameworks, covalent organic frameworks, , porous organic polymers, , metal zeolitic imidazolate frameworks, nitrogen/metal-doped porous carbon, and polymeric/supported ILs. , Although these catalysts are easily recycled by filtration or centrifugation, they often require harsh reaction conditions and tedious preparation processes. In most of the cases, both the homogeneous and the heterogeneous catalysts need transition metal ions, additives, and/or nucleophilic cocatalyst ( n -Bu 4 NBr, KI, etc.)…”