AI Article Synopsis
- The study demonstrates the efficient production of cyclic carbonates via CO cycloaddition to epoxides using a C-scorpionate iron(II) complex as a catalyst in a specially designed ionic liquid medium.
- The process yields impressive results, achieving up to 98% yield at mild temperatures (80 °C) and pressures (1-8 bar), with a synergistic catalytic effect noted in the catalyst-ionic liquid system.
- The catalyst shows remarkable stability, maintaining its activity over ten cycles with only an 11% decrease in yield observed by the 11th cycle, marking a novel application of C-scorpionate complexes in ionic liquids for cyclic carbonate formation.
Article Abstract
The production of cyclic carbonates from CO cycloaddition to epoxides, using the C-scorpionate iron(II) complex [FeCl{κ-HC(pz)}] (pz = 1-pyrazol-1-yl) as a catalyst, is achieved in excellent yields (up to 98%) in a tailor-made ionic liquid (IL) medium under mild conditions (80 °C; 1-8 bar). A favorable synergistic catalytic effect was found in the [FeCl{κ-HC(pz)}]/IL system. Notably, in addition to exhibiting remarkable activity, the catalyst is stable during ten consecutive cycles, the first decrease (11%) on the cyclic carbonate yield being observed during the 11th cycle. The use of C-scorpionate complexes in ionic liquids to afford cyclic carbonates is presented herein for the first time.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7922262 | PMC |
| http://dx.doi.org/10.3390/molecules26041089 | DOI Listing |
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