Efficient and Reusable Iron Catalyst to Convert CO2 into Valuable Cyclic Carbonates

The production of cyclic carbonates from CO2 cycloaddition to epoxides, using the C-scorpionate iron(II) complex [FeCl2{κ3-HC(pz)3}] (pz = 1H-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 f...

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Published in:Molecules (Basel, Switzerland) Switzerland), 2021-02, Vol.26 (4), p.1089
Main Authors: Ribeiro, Ana P. C., Goodrich, Peter, Martins, Luísa M. D. R. S.
Format: Article
Language:English
Subjects:
carbon dioxide conversion
cyclic carbonate
iron C-scorpionate
recyclable catalyst
synergistic catalysis
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cited_by cdi_FETCH-LOGICAL-c442t-b5d02e5f5cc381aa876b55c70d1cea4a86fada8fdda5c1cd81d1a44b4a859a1e3
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description The production of cyclic carbonates from CO2 cycloaddition to epoxides, using the C-scorpionate iron(II) complex [FeCl2{κ3-HC(pz)3}] (pz = 1H-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 [FeCl2{κ3-HC(pz)3}]/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.
doi_str_mv 10.3390/molecules26041089
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subjects carbon dioxide conversion
cyclic carbonate
iron C-scorpionate
recyclable catalyst
synergistic catalysis
title Efficient and Reusable Iron Catalyst to Convert CO2 into Valuable Cyclic Carbonates
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