Cobalt complexes with α-amino acid ligands catalyze the incorporation of CO₂into cyclic carbonates

Abstract

A bioinspired Co(iii) catalyst efficiently transforms epoxides and CO2 into cyclic carbonates. The mechanism was found to combine the cooperative effects of the metal center and amino acid residues in the outer coordination sphere.

Efficient catalytic conversion of CO2 to quinazoline-2,4(1H,3H)-diones by a dual-site anion-functionalized ionic liquid: reconsidering the mechanism

“…To explore the possible intermediates, in situ FT-IR spectra equipped with a temperature probe are used to monitor the reaction (entry 5). 13 As can be seen from Fig. 2, the peak at 1716 cm −1 is attributed to the new CO of the activated CO 2 by [Hy] 2− (Fig.…”

Investigation and Comparison of Catalytic Methods to Produce Green CO2-Containing Monomers for Polycarbonates

“…The most promising results have been obtained so far with the so-called Jacobson catalyst that was chosen also for this study (see Figure 3). As an alternative, as well as a more controllable method [6,11,13,29,40,41], organocatalysis has already attracted some interest, as the chemicals used avoid high-pressure processes and can theoretically be run in closed-loop processes [21,22,36] and are based on renewable raw materials (reduced mandelic acid). The reaction also leads to high conversion of the raw material avoiding intensive separations [21,22].…”