Dual-porous metal organic framework for room temperature CO₂fixation via cyclic carbonate synthesis

Abstract

An approach employing a dual-porous metal organic framework as a catalyst for room temperature CO2 fixation via cyclic carbonate synthesis with high selectivity towards cyclic carbonates under solvent free conditions was demonstrated.

Six‐membered cyclic carbonates from trimethylolpropane: Lipase‐mediated synthesis in a flow reactor and in silico evaluation of the reaction

“…Cyclic carbonates have attracted attention as potential monomers to provide an alternative phosgene‐ and isocyanate‐free route for the production of aliphatic polycarbonates and polyurethanes, the polymers with a broad range of applications (e.g., in engineering, optical devices, seatings, seals, coatings, and high performance adhesives) and with increasing demand in biomedicine due to their features of biocompatibility and low toxicity . Cyclic carbonates are mainly produced by transesterification of polyols with dialkylcarbonate in metal‐ or enzyme (lipase)‐catalyzed reaction, and cycloaddition of CO 2 to epoxides .…”

“…Cyclic carbonates have attracted attention as potential monomers to provide an alternative phosgene‐ and isocyanate‐free route for the production of aliphatic polycarbonates and polyurethanes, the polymers with a broad range of applications (e.g., in engineering, optical devices, seatings, seals, coatings, and high performance adhesives) and with increasing demand in biomedicine due to their features of biocompatibility and low toxicity . Cyclic carbonates are mainly produced by transesterification of polyols with dialkylcarbonate in metal‐ or enzyme (lipase)‐catalyzed reaction, and cycloaddition of CO 2 to epoxides . Majority of the studies so far report on the synthesis of five‐membered carbonates, while six‐membered cyclic carbonate is the preferred structure for use in ring‐opening polymerization (ROP) process, as it is thermodynamically less stable than the ring‐opened polymer, and results in higher reaction rate and retaining CO 2 during polymerization .…”

Efficient Solvent‐Free Carbon Dioxide Fixation Reactions with Epoxides Under Mild Conditions by Mixed‐Ligand Zinc(II) Metal–Organic Frameworks

“…From structural data and previous studies, a probable synergistic mechanism during the catalysis by the ZnMOF‐1 /TBAB binary system is proposed, which is also relevant in the case of ZnMOF‐2 . The crystal structures of both ZnMOFs revealed N 2 O 4 coordination around the metal center; the carboxylate group chelated to the metal with a long Zn−O distance (Zn−O2=2.412 Å in ZnMOF‐1 and 2.356 Å in ZnMOF‐2 ) is susceptible for initial catalytic reaction.…”

“…MOFs with different metal cations have been explored for the synthesis of cyclic carbonates . Pioneering work on the catalytic conversion of CO 2 to cyclic carbonates from epoxide substrates using MOFs as catalysts has been demonstrated under versatile reaction conditions by Park et al . A binary catalytic system with a Lewis acid metal center in the presence of a nucleophile with an easy‐leaving halide anion by a synergistic pathway endorses the efficiency of the synthesis of cyclic carbonates from CO 2 ‐epoxide cycloaddition reactions.…”

Nitrogen-Doped Mesoporous Carbon Material (N-GMC) as a Highly Efficient Catalyst for Carbon Dioxide Fixation Reaction with Epoxides under metal-free condition

“…A lot of efforts have been already devoted for CO 2 capture and its sequential conversion of cyclic carbonates. Various homogeneous and heterogeneous catalysts for this reaction have been developed, such as salen complexes, metaloporphyrins, metal‐organic‐frameworks (MOFs), zeolites, and metaloporous polymers (MCPs) . Despite the excellent catalytic activities of the homogeneous catalysts, the main drawback in the use of such catalysts is the difficulty in catalyst recovery and product purification.…”