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A practical concept for catalytic carbonylations using carbon dioxide
Rui Sang1, Yuya Hu1, Rauf Razzaq1
1Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany.
Nature Communications
|July 30, 2022
Summary
This study introduces a novel two-step process for utilizing carbon dioxide (CO2) and hydrogen (H2) as feedstocks. A new catalyst efficiently converts CO2 into carbon monoxide (CO) for subsequent carbonylation reactions, producing valuable chemicals.
Area of Science:
- Catalysis
- Green Chemistry
- Organic Synthesis
Background:
- Atmospheric carbon dioxide (CO2) rise is a primary driver of global warming.
- CO2 utilization is crucial for sustainable chemical manufacturing.
- CO2 as a C1 feedstock offers a pathway to valuable chemicals.
Purpose of the Study:
- To develop a two-step cascade process for catalytic carbonylation using CO2.
- To utilize CO2 and H2 as feedstocks for producing aldehydes, esters, and amides.
- To demonstrate a sustainable method for synthesizing organic building blocks.
Main Methods:
- A novel heterogeneous copper catalyst (10Cu@SiO2-PHM) was synthesized.
- The catalyst facilitated the reduction of CO2 with H2 to generate carbon monoxide (CO).
- In situ generated CO was used in subsequent hydroformylation, alkoxycarbonylation, and aminocarbonylation reactions.
Main Results:
- The 10Cu@SiO2-PHM catalyst showed high selectivity (≥98%) and 27% conversion in CO generation.
- Various aldehydes, (unsaturated) esters, and amides were synthesized with high yields and selectivities.
- Reactions proceeded efficiently at low temperatures and ambient pressure.
Conclusions:
- The developed two-step cascade process effectively utilizes CO2 as a C1 feedstock.
- This method offers a sustainable route for producing important organic compounds.
- The approach is suitable for continuous synthesis in drug discovery and organic synthesis.
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